Commit Graph

1238628 Commits

Author SHA1 Message Date
Jamie Iles
4c257170c8 drivers/usb/dwc3: fix PCI parent check
commit 40f8d17eed7533ed2bbb5e3cc680049b19411b2e upstream.

The sysdev_is_parent check was being used to infer PCI devices that have
the DMA mask set from the PCI capabilities, but sysdev_is_parent is also
used for non-PCI ACPI devices in which case the DMA mask would be the
bus default or as set by the _DMA method.

Without this fix the DMA mask would default to 32-bits and so allocation
would fail if there was no DRAM below 4GB.

Fixes: 47ce45906c ("usb: dwc3: leave default DMA for PCI devices")
Cc: stable <stable@kernel.org>
Signed-off-by: Jamie Iles <jamie.iles@oss.qualcomm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@oss.qualcomm.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://patch.msgid.link/20251107104437.1602509-1-punit.agrawal@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Mikulas Patocka
f8d1f16628 dm-verity: fix unreliable memory allocation
commit fe680d8c747f4e676ac835c8c7fb0f287cd98758 upstream.

GFP_NOWAIT allocation may fail anytime. It needs to be changed to
GFP_NOIO. There's no need to handle an error because mempool_alloc with
GFP_NOIO can't fail.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Viacheslav Dubeyko
5a3f3e39b1 ceph: fix crash in process_v2_sparse_read() for encrypted directories
commit 43962db4a6f593903340c85591056a0cef812dfd upstream.

The crash in process_v2_sparse_read() for fscrypt-encrypted directories
has been reported. Issue takes place for Ceph msgr2 protocol in secure
mode. It can be reproduced by the steps:

sudo mount -t ceph :/ /mnt/cephfs/ -o name=admin,fs=cephfs,ms_mode=secure

(1) mkdir /mnt/cephfs/fscrypt-test-3
(2) cp area_decrypted.tar /mnt/cephfs/fscrypt-test-3
(3) fscrypt encrypt --source=raw_key --key=./my.key /mnt/cephfs/fscrypt-test-3
(4) fscrypt lock /mnt/cephfs/fscrypt-test-3
(5) fscrypt unlock --key=my.key /mnt/cephfs/fscrypt-test-3
(6) cat /mnt/cephfs/fscrypt-test-3/area_decrypted.tar
(7) Issue has been triggered

[  408.072247] ------------[ cut here ]------------
[  408.072251] WARNING: CPU: 1 PID: 392 at net/ceph/messenger_v2.c:865
ceph_con_v2_try_read+0x4b39/0x72f0
[  408.072267] Modules linked in: intel_rapl_msr intel_rapl_common
intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery
pmt_class intel_pmc_ssram_telemetry intel_vsec kvm_intel joydev kvm irqbypass
polyval_clmulni ghash_clmulni_intel aesni_intel rapl input_leds psmouse
serio_raw i2c_piix4 vga16fb bochs vgastate i2c_smbus floppy mac_hid qemu_fw_cfg
pata_acpi sch_fq_codel rbd msr parport_pc ppdev lp parport efi_pstore
[  408.072304] CPU: 1 UID: 0 PID: 392 Comm: kworker/1:3 Not tainted 6.17.0-rc7+
[  408.072307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  408.072310] Workqueue: ceph-msgr ceph_con_workfn
[  408.072314] RIP: 0010:ceph_con_v2_try_read+0x4b39/0x72f0
[  408.072317] Code: c7 c1 20 f0 d4 ae 50 31 d2 48 c7 c6 60 27 d5 ae 48 c7 c7 f8
8e 6f b0 68 60 38 d5 ae e8 00 47 61 fe 48 83 c4 18 e9 ac fc ff ff <0f> 0b e9 06
fe ff ff 4c 8b 9d 98 fd ff ff 0f 84 64 e7 ff ff 89 85
[  408.072319] RSP: 0018:ffff88811c3e7a30 EFLAGS: 00010246
[  408.072322] RAX: ffffed1024874c6f RBX: ffffea00042c2b40 RCX: 0000000000000f38
[  408.072324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  408.072325] RBP: ffff88811c3e7ca8 R08: 0000000000000000 R09: 00000000000000c8
[  408.072326] R10: 00000000000000c8 R11: 0000000000000000 R12: 00000000000000c8
[  408.072327] R13: dffffc0000000000 R14: ffff8881243a6030 R15: 0000000000003000
[  408.072329] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.072331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.072332] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.072336] PKRU: 55555554
[  408.072337] Call Trace:
[  408.072338]  <TASK>
[  408.072340]  ? sched_clock_noinstr+0x9/0x10
[  408.072344]  ? __pfx_ceph_con_v2_try_read+0x10/0x10
[  408.072347]  ? _raw_spin_unlock+0xe/0x40
[  408.072349]  ? finish_task_switch.isra.0+0x15d/0x830
[  408.072353]  ? __kasan_check_write+0x14/0x30
[  408.072357]  ? mutex_lock+0x84/0xe0
[  408.072359]  ? __pfx_mutex_lock+0x10/0x10
[  408.072361]  ceph_con_workfn+0x27e/0x10e0
[  408.072364]  ? metric_delayed_work+0x311/0x2c50
[  408.072367]  process_one_work+0x611/0xe20
[  408.072371]  ? __kasan_check_write+0x14/0x30
[  408.072373]  worker_thread+0x7e3/0x1580
[  408.072375]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  408.072378]  ? __pfx_worker_thread+0x10/0x10
[  408.072381]  kthread+0x381/0x7a0
[  408.072383]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  408.072385]  ? __pfx_kthread+0x10/0x10
[  408.072387]  ? __kasan_check_write+0x14/0x30
[  408.072389]  ? recalc_sigpending+0x160/0x220
[  408.072392]  ? _raw_spin_unlock_irq+0xe/0x50
[  408.072394]  ? calculate_sigpending+0x78/0xb0
[  408.072395]  ? __pfx_kthread+0x10/0x10
[  408.072397]  ret_from_fork+0x2b6/0x380
[  408.072400]  ? __pfx_kthread+0x10/0x10
[  408.072402]  ret_from_fork_asm+0x1a/0x30
[  408.072406]  </TASK>
[  408.072407] ---[ end trace 0000000000000000 ]---
[  408.072418] Oops: general protection fault, probably for non-canonical
address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
[  408.072984] KASAN: null-ptr-deref in range [0x0000000000000000-
0x0000000000000007]
[  408.073350] CPU: 1 UID: 0 PID: 392 Comm: kworker/1:3 Tainted: G        W
6.17.0-rc7+ #1 PREEMPT(voluntary)
[  408.073886] Tainted: [W]=WARN
[  408.074042] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  408.074468] Workqueue: ceph-msgr ceph_con_workfn
[  408.074694] RIP: 0010:ceph_msg_data_advance+0x79/0x1a80
[  408.074976] Code: fc ff df 49 8d 77 08 48 c1 ee 03 80 3c 16 00 0f 85 07 11 00
00 48 ba 00 00 00 00 00 fc ff df 49 8b 5f 08 48 89 de 48 c1 ee 03 <0f> b6 14 16
84 d2 74 09 80 fa 03 0f 8e 0f 0e 00 00 8b 13 83 fa 03
[  408.075884] RSP: 0018:ffff88811c3e7990 EFLAGS: 00010246
[  408.076305] RAX: ffff8881243a6388 RBX: 0000000000000000 RCX: 0000000000000000
[  408.076909] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8881243a6378
[  408.077466] RBP: ffff88811c3e7a20 R08: 0000000000000000 R09: 00000000000000c8
[  408.078034] R10: ffff8881243a6388 R11: 0000000000000000 R12: ffffed1024874c71
[  408.078575] R13: dffffc0000000000 R14: ffff8881243a6030 R15: ffff8881243a6378
[  408.079159] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.079736] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.080039] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.080376] PKRU: 55555554
[  408.080513] Call Trace:
[  408.080630]  <TASK>
[  408.080729]  ceph_con_v2_try_read+0x49b9/0x72f0
[  408.081115]  ? __pfx_ceph_con_v2_try_read+0x10/0x10
[  408.081348]  ? _raw_spin_unlock+0xe/0x40
[  408.081538]  ? finish_task_switch.isra.0+0x15d/0x830
[  408.081768]  ? __kasan_check_write+0x14/0x30
[  408.081986]  ? mutex_lock+0x84/0xe0
[  408.082160]  ? __pfx_mutex_lock+0x10/0x10
[  408.082343]  ceph_con_workfn+0x27e/0x10e0
[  408.082529]  ? metric_delayed_work+0x311/0x2c50
[  408.082737]  process_one_work+0x611/0xe20
[  408.082948]  ? __kasan_check_write+0x14/0x30
[  408.083156]  worker_thread+0x7e3/0x1580
[  408.083331]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  408.083557]  ? __pfx_worker_thread+0x10/0x10
[  408.083751]  kthread+0x381/0x7a0
[  408.083922]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  408.084139]  ? __pfx_kthread+0x10/0x10
[  408.084310]  ? __kasan_check_write+0x14/0x30
[  408.084510]  ? recalc_sigpending+0x160/0x220
[  408.084708]  ? _raw_spin_unlock_irq+0xe/0x50
[  408.084917]  ? calculate_sigpending+0x78/0xb0
[  408.085138]  ? __pfx_kthread+0x10/0x10
[  408.085335]  ret_from_fork+0x2b6/0x380
[  408.085525]  ? __pfx_kthread+0x10/0x10
[  408.085720]  ret_from_fork_asm+0x1a/0x30
[  408.085922]  </TASK>
[  408.086036] Modules linked in: intel_rapl_msr intel_rapl_common
intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery
pmt_class intel_pmc_ssram_telemetry intel_vsec kvm_intel joydev kvm irqbypass
polyval_clmulni ghash_clmulni_intel aesni_intel rapl input_leds psmouse
serio_raw i2c_piix4 vga16fb bochs vgastate i2c_smbus floppy mac_hid qemu_fw_cfg
pata_acpi sch_fq_codel rbd msr parport_pc ppdev lp parport efi_pstore
[  408.087778] ---[ end trace 0000000000000000 ]---
[  408.088007] RIP: 0010:ceph_msg_data_advance+0x79/0x1a80
[  408.088260] Code: fc ff df 49 8d 77 08 48 c1 ee 03 80 3c 16 00 0f 85 07 11 00
00 48 ba 00 00 00 00 00 fc ff df 49 8b 5f 08 48 89 de 48 c1 ee 03 <0f> b6 14 16
84 d2 74 09 80 fa 03 0f 8e 0f 0e 00 00 8b 13 83 fa 03
[  408.089118] RSP: 0018:ffff88811c3e7990 EFLAGS: 00010246
[  408.089357] RAX: ffff8881243a6388 RBX: 0000000000000000 RCX: 0000000000000000
[  408.089678] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8881243a6378
[  408.090020] RBP: ffff88811c3e7a20 R08: 0000000000000000 R09: 00000000000000c8
[  408.090360] R10: ffff8881243a6388 R11: 0000000000000000 R12: ffffed1024874c71
[  408.090687] R13: dffffc0000000000 R14: ffff8881243a6030 R15: ffff8881243a6378
[  408.091035] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.091452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.092015] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.092530] PKRU: 55555554
[  417.112915]
==================================================================
[  417.113491] BUG: KASAN: slab-use-after-free in
__mutex_lock.constprop.0+0x1522/0x1610
[  417.114014] Read of size 4 at addr ffff888124870034 by task kworker/2:0/4951

[  417.114587] CPU: 2 UID: 0 PID: 4951 Comm: kworker/2:0 Tainted: G      D W
6.17.0-rc7+ #1 PREEMPT(voluntary)
[  417.114592] Tainted: [D]=DIE, [W]=WARN
[  417.114593] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  417.114596] Workqueue: events handle_timeout
[  417.114601] Call Trace:
[  417.114602]  <TASK>
[  417.114604]  dump_stack_lvl+0x5c/0x90
[  417.114610]  print_report+0x171/0x4dc
[  417.114613]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  417.114617]  ? kasan_complete_mode_report_info+0x80/0x220
[  417.114621]  kasan_report+0xbd/0x100
[  417.114625]  ? __mutex_lock.constprop.0+0x1522/0x1610
[  417.114628]  ? __mutex_lock.constprop.0+0x1522/0x1610
[  417.114630]  __asan_report_load4_noabort+0x14/0x30
[  417.114633]  __mutex_lock.constprop.0+0x1522/0x1610
[  417.114635]  ? queue_con_delay+0x8d/0x200
[  417.114638]  ? __pfx___mutex_lock.constprop.0+0x10/0x10
[  417.114641]  ? __send_subscribe+0x529/0xb20
[  417.114644]  __mutex_lock_slowpath+0x13/0x20
[  417.114646]  mutex_lock+0xd4/0xe0
[  417.114649]  ? __pfx_mutex_lock+0x10/0x10
[  417.114652]  ? ceph_monc_renew_subs+0x2a/0x40
[  417.114654]  ceph_con_keepalive+0x22/0x110
[  417.114656]  handle_timeout+0x6b3/0x11d0
[  417.114659]  ? _raw_spin_unlock_irq+0xe/0x50
[  417.114662]  ? __pfx_handle_timeout+0x10/0x10
[  417.114664]  ? queue_delayed_work_on+0x8e/0xa0
[  417.114669]  process_one_work+0x611/0xe20
[  417.114672]  ? __kasan_check_write+0x14/0x30
[  417.114676]  worker_thread+0x7e3/0x1580
[  417.114678]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  417.114682]  ? __pfx_sched_setscheduler_nocheck+0x10/0x10
[  417.114687]  ? __pfx_worker_thread+0x10/0x10
[  417.114689]  kthread+0x381/0x7a0
[  417.114692]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  417.114694]  ? __pfx_kthread+0x10/0x10
[  417.114697]  ? __kasan_check_write+0x14/0x30
[  417.114699]  ? recalc_sigpending+0x160/0x220
[  417.114703]  ? _raw_spin_unlock_irq+0xe/0x50
[  417.114705]  ? calculate_sigpending+0x78/0xb0
[  417.114707]  ? __pfx_kthread+0x10/0x10
[  417.114710]  ret_from_fork+0x2b6/0x380
[  417.114713]  ? __pfx_kthread+0x10/0x10
[  417.114715]  ret_from_fork_asm+0x1a/0x30
[  417.114720]  </TASK>

[  417.125171] Allocated by task 2:
[  417.125333]  kasan_save_stack+0x26/0x60
[  417.125522]  kasan_save_track+0x14/0x40
[  417.125742]  kasan_save_alloc_info+0x39/0x60
[  417.125945]  __kasan_slab_alloc+0x8b/0xb0
[  417.126133]  kmem_cache_alloc_node_noprof+0x13b/0x460
[  417.126381]  copy_process+0x320/0x6250
[  417.126595]  kernel_clone+0xb7/0x840
[  417.126792]  kernel_thread+0xd6/0x120
[  417.126995]  kthreadd+0x85c/0xbe0
[  417.127176]  ret_from_fork+0x2b6/0x380
[  417.127378]  ret_from_fork_asm+0x1a/0x30

[  417.127692] Freed by task 0:
[  417.127851]  kasan_save_stack+0x26/0x60
[  417.128057]  kasan_save_track+0x14/0x40
[  417.128267]  kasan_save_free_info+0x3b/0x60
[  417.128491]  __kasan_slab_free+0x6c/0xa0
[  417.128708]  kmem_cache_free+0x182/0x550
[  417.128906]  free_task+0xeb/0x140
[  417.129070]  __put_task_struct+0x1d2/0x4f0
[  417.129259]  __put_task_struct_rcu_cb+0x15/0x20
[  417.129480]  rcu_do_batch+0x3d3/0xe70
[  417.129681]  rcu_core+0x549/0xb30
[  417.129839]  rcu_core_si+0xe/0x20
[  417.130005]  handle_softirqs+0x160/0x570
[  417.130190]  __irq_exit_rcu+0x189/0x1e0
[  417.130369]  irq_exit_rcu+0xe/0x20
[  417.130531]  sysvec_apic_timer_interrupt+0x9f/0xd0
[  417.130768]  asm_sysvec_apic_timer_interrupt+0x1b/0x20

[  417.131082] Last potentially related work creation:
[  417.131305]  kasan_save_stack+0x26/0x60
[  417.131484]  kasan_record_aux_stack+0xae/0xd0
[  417.131695]  __call_rcu_common+0xcd/0x14b0
[  417.131909]  call_rcu+0x31/0x50
[  417.132071]  delayed_put_task_struct+0x128/0x190
[  417.132295]  rcu_do_batch+0x3d3/0xe70
[  417.132478]  rcu_core+0x549/0xb30
[  417.132658]  rcu_core_si+0xe/0x20
[  417.132808]  handle_softirqs+0x160/0x570
[  417.132993]  __irq_exit_rcu+0x189/0x1e0
[  417.133181]  irq_exit_rcu+0xe/0x20
[  417.133353]  sysvec_apic_timer_interrupt+0x9f/0xd0
[  417.133584]  asm_sysvec_apic_timer_interrupt+0x1b/0x20

[  417.133921] Second to last potentially related work creation:
[  417.134183]  kasan_save_stack+0x26/0x60
[  417.134362]  kasan_record_aux_stack+0xae/0xd0
[  417.134566]  __call_rcu_common+0xcd/0x14b0
[  417.134782]  call_rcu+0x31/0x50
[  417.134929]  put_task_struct_rcu_user+0x58/0xb0
[  417.135143]  finish_task_switch.isra.0+0x5d3/0x830
[  417.135366]  __schedule+0xd30/0x5100
[  417.135534]  schedule_idle+0x5a/0x90
[  417.135712]  do_idle+0x25f/0x410
[  417.135871]  cpu_startup_entry+0x53/0x70
[  417.136053]  start_secondary+0x216/0x2c0
[  417.136233]  common_startup_64+0x13e/0x141

[  417.136894] The buggy address belongs to the object at ffff888124870000
                which belongs to the cache task_struct of size 10504
[  417.138122] The buggy address is located 52 bytes inside of
                freed 10504-byte region [ffff888124870000, ffff888124872908)

[  417.139465] The buggy address belongs to the physical page:
[  417.140016] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
pfn:0x124870
[  417.140789] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0
pincount:0
[  417.141519] memcg:ffff88811aa20e01
[  417.141874] anon flags:
0x17ffffc0000040(head|node=0|zone=2|lastcpupid=0x1fffff)
[  417.142600] page_type: f5(slab)
[  417.142922] raw: 0017ffffc0000040 ffff88810094f040 0000000000000000
dead000000000001
[  417.143554] raw: 0000000000000000 0000000000030003 00000000f5000000
ffff88811aa20e01
[  417.143954] head: 0017ffffc0000040 ffff88810094f040 0000000000000000
dead000000000001
[  417.144329] head: 0000000000000000 0000000000030003 00000000f5000000
ffff88811aa20e01
[  417.144710] head: 0017ffffc0000003 ffffea0004921c01 00000000ffffffff
00000000ffffffff
[  417.145106] head: ffffffffffffffff 0000000000000000 00000000ffffffff
0000000000000008
[  417.145485] page dumped because: kasan: bad access detected

[  417.145859] Memory state around the buggy address:
[  417.146094]  ffff88812486ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
fc
[  417.146439]  ffff88812486ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
fc
[  417.146791] >ffff888124870000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.147145]                                      ^
[  417.147387]  ffff888124870080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.147751]  ffff888124870100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.148123]
==================================================================

First of all, we have warning in get_bvec_at() because
cursor->total_resid contains zero value. And, finally,
we have crash in ceph_msg_data_advance() because
cursor->data is NULL. It means that get_bvec_at()
receives not initialized ceph_msg_data_cursor structure
because data is NULL and total_resid contains zero.

Moreover, we don't have likewise issue for the case of
Ceph msgr1 protocol because ceph_msg_data_cursor_init()
has been called before reading sparse data.

This patch adds calling of ceph_msg_data_cursor_init()
in the beginning of process_v2_sparse_read() with
the goal to guarantee that logic of reading sparse data
works correctly for the case of Ceph msgr2 protocol.

Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/73152
Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Marc Kleine-Budde
61089dd37c can: sun4i_can: sun4i_can_interrupt(): fix max irq loop handling
commit 76544beea7cfe5bcce6d60f53811657b88ec8be1 upstream.

Reading the interrupt register `SUN4I_REG_INT_ADDR` causes all of its bits
to be reset. If we ever reach the condition of handling more than
`SUN4I_CAN_MAX_IRQ` IRQs, we will have read the register and reset all its
bits but without actually handling the interrupt inside of the loop body.

This may, among other issues, cause us to never `netif_wake_queue()` again
after a transmission interrupt.

Fixes: 0738eff14d ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Cc: stable@vger.kernel.org
Co-developed-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>
Signed-off-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251116-sun4i-fix-loop-v1-1-3d76d3f81950@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Thomas Mühlbacher
c952664fd5 can: sja1000: fix max irq loop handling
commit 30db4451c7f6aabcada029b15859a76962ec0cf8 upstream.

Reading the interrupt register `SJA1000_IR` causes all of its bits to be
reset. If we ever reach the condition of handling more than
`SJA1000_MAX_IRQ` IRQs, we will have read the register and reset all its
bits but without actually handling the interrupt inside of the loop
body.

This may, among other issues, cause us to never `netif_wake_queue()`
again after a transmission interrupt.

Fixes: 429da1cc84 ("can: Driver for the SJA1000 CAN controller")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251115153437.11419-1-tmuehlbacher@posteo.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Gui-Dong Han
9917ba597c atm/fore200e: Fix possible data race in fore200e_open()
commit 82fca3d8a4a34667f01ec2351a607135249c9cff upstream.

Protect access to fore200e->available_cell_rate with rate_mtx lock in the
error handling path of fore200e_open() to prevent a data race.

The field fore200e->available_cell_rate is a shared resource used to track
available bandwidth. It is concurrently accessed by fore200e_open(),
fore200e_close(), and fore200e_change_qos().

In fore200e_open(), the lock rate_mtx is correctly held when subtracting
vcc->qos.txtp.max_pcr from available_cell_rate to reserve bandwidth.
However, if the subsequent call to fore200e_activate_vcin() fails, the
function restores the reserved bandwidth by adding back to
available_cell_rate without holding the lock.

This introduces a race condition because available_cell_rate is a global
device resource shared across all VCCs. If the error path in
fore200e_open() executes concurrently with operations like
fore200e_close() or fore200e_change_qos() on other VCCs, a
read-modify-write race occurs.

Specifically, the error path reads the rate without the lock. If another
CPU acquires the lock and modifies the rate (e.g., releasing bandwidth in
fore200e_close()) between this read and the subsequent write, the error
path will overwrite the concurrent update with a stale value. This results
in incorrect bandwidth accounting.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Gui-Dong Han <hanguidong02@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251120120657.2462194-1-hanguidong02@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Maarten Zanders
5b88725e5e ARM: dts: nxp: imx6ul: correct SAI3 interrupt line
commit 1b03346314b791ad966d3c6d59253328226a2b2d upstream.

The i.MX6UL reference manual lists two possible interrupt lines for
SAI3 (56 and 57, offset +32). The current device tree entry uses
the first one (24), which prevents IRQs from being handled properly.

Use the second interrupt line (25), which does allow interrupts
to work as expected.

Fixes: 36e2edf6ac ("ARM: dts: imx6ul: add sai support")
Signed-off-by: Maarten Zanders <maarten@zanders.be>
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Ivan Zhaldak
b4abe68269 ALSA: usb-audio: Add DSD quirk for LEAK Stereo 230
commit c83fc13960643c4429cd9dfef1321e6430a81b47 upstream.

Integrated amplifier LEAK Stereo 230 by IAG Limited has built-in
ESS9038Q2M DAC served by XMOS controller. It supports both DSD Native
and DSD-over-PCM (DoP) operational modes. But it doesn't work properly
by default and tries DSD-to-PCM conversion. USB quirks below allow it
to operate as designed.

Add DSD_RAW quirk flag for IAG Limited devices (vendor ID 0x2622)
Add DSD format quirk for LEAK Stereo 230 (USB ID 0x2622:0x0061)

Signed-off-by: Ivan Zhaldak <i.v.zhaldak@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20251117125848.30769-1-i.v.zhaldak@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Thomas Bogendoerfer
231ac951fa MIPS: mm: kmalloc tlb_vpn array to avoid stack overflow
commit 841ecc979b18d3227fad5e2d6a1e6f92688776b5 upstream.

Owing to Config4.MMUSizeExt and VTLB/FTLB MMU features later MIPSr2+
cores can have more than 64 TLB entries.  Therefore allocate an array
for uniquification instead of placing too an small array on the stack.

Fixes: 35ad7e181541 ("MIPS: mm: tlb-r4k: Uniquify TLB entries on init")
Co-developed-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Cc: stable@vger.kernel.org # v6.17+: 9f048fa48740: MIPS: mm: Prevent a TLB shutdown on initial uniquification
Cc: stable@vger.kernel.org # v6.17+
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Klara Modin <klarasmodin@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Maciej W. Rozycki
135713cd07 MIPS: mm: Prevent a TLB shutdown on initial uniquification
commit 9f048fa487409e364cf866c957cf0b0d782ca5a3 upstream.

Depending on the particular CPU implementation a TLB shutdown may occur
if multiple matching entries are detected upon the execution of a TLBP
or the TLBWI/TLBWR instructions.  Given that we don't know what entries
we have been handed we need to be very careful with the initial TLB
setup and avoid all these instructions.

Therefore read all the TLB entries one by one with the TLBR instruction,
bypassing the content addressing logic, and truncate any large pages in
place so as to avoid a case in the second step where an incoming entry
for a large page at a lower address overlaps with a replacement entry
chosen at another index.  Then preinitialize the TLB using addresses
outside our usual unique range and avoiding clashes with any entries
received, before making the usual call to local_flush_tlb_all().

This fixes (at least) R4x00 cores if TLBP hits multiple matching TLB
entries (SGI IP22 PROM for examples sets up all TLBs to the same virtual
address).

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 35ad7e181541 ("MIPS: mm: tlb-r4k: Uniquify TLB entries on init")
Cc: stable@vger.kernel.org
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # Boston I6400, M5150 sim
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
David Lechner
ad70338c1b iio: adc: ad7280a: fix ad7280_store_balance_timer()
commit bd886cdcbf9e746f61c74035a3acd42e9108e115 upstream.

Use correct argument to iio_str_to_fixpoint() to parse 3 decimal places.

iio_str_to_fixpoint() has a bit of an unintuitive API where the
fract_mult parameter is the multiplier of the first decimal place as if
it was already an integer.  So to get 3 decimal places, fract_mult must
be 100 rather than 1000.

Fixes: 96ccdbc07a ("staging:iio:adc:ad7280a: Standardize extended ABI naming")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:51 +09:00
Valek Andrej
a9fa254af3 iio: accel: fix ADXL355 startup race condition
commit c92c1bc408e9e11ae3c7011b062fdd74c09283a3 upstream.

There is an race-condition where device is not full working after SW reset.
Therefore it's necessary to wait some time after reset and verify shadow
registers values by reading and comparing the values before/after reset.
This mechanism is described in datasheet at least from revision D.

Fixes: 12ed27863e ("iio: accel: Add driver support for ADXL355")
Signed-off-by: Valek Andrej <andrej.v@skyrain.eu>
Signed-off-by: Kessler Markus <markus.kessler@hilti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:50 +09:00
Linus Walleij
cdd4a9e980 iio: accel: bmc150: Fix irq assumption regression
commit 3aa385a9c75c09b59dcab2ff76423439d23673ab upstream.

The code in bmc150-accel-core.c unconditionally calls
bmc150_accel_set_interrupt() in the iio_buffer_setup_ops,
such as on the runtime PM resume path giving a kernel
splat like this if the device has no interrupts:

Unable to handle kernel NULL pointer dereference at virtual
  address 00000001 when read

PC is at bmc150_accel_set_interrupt+0x98/0x194
LR is at __pm_runtime_resume+0x5c/0x64
(...)
Call trace:
bmc150_accel_set_interrupt from bmc150_accel_buffer_postenable+0x40/0x108
bmc150_accel_buffer_postenable from __iio_update_buffers+0xbe0/0xcbc
__iio_update_buffers from enable_store+0x84/0xc8
enable_store from kernfs_fop_write_iter+0x154/0x1b4

This bug seems to have been in the driver since the beginning,
but it only manifests recently, I do not know why.

Store the IRQ number in the state struct, as this is a common
pattern in other drivers, then use this to determine if we have
IRQ support or not.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:50 +09:00
Christophe JAILLET
a8f6a8256a iio:common:ssp_sensors: Fix an error handling path ssp_probe()
commit 21553258b94861a73d7f2cf15469d69240e1170d upstream.

If an error occurs after a successful mfd_add_devices() call, it should be
undone by a corresponding mfd_remove_devices() call, as already done in the
remove function.

Fixes: 50dd64d57e ("iio: common: ssp_sensors: Add sensorhub driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:50 +09:00
Francesco Lavra
936e082a7c iio: imu: st_lsm6dsx: fix array size for st_lsm6dsx_settings fields
commit 3af0c1fb1cdc351b64ff1a4bc06d491490c1f10a upstream.

The `decimator` and `batch` fields of struct st_lsm6dsx_settings
are arrays indexed by sensor type, not by sensor hardware
identifier; moreover, the `batch` field is only used for the
accelerometer and gyroscope.
Change the array size for `decimator` from ST_LSM6DSX_MAX_ID to
ST_LSM6DSX_ID_MAX, and change the array size for `batch` from
ST_LSM6DSX_MAX_ID to 2; move the enum st_lsm6dsx_sensor_id
definition so that the ST_LSM6DSX_ID_MAX value is usable within
the struct st_lsm6dsx_settings definition.

Fixes: 801a6e0af0 ("iio: imu: st_lsm6dsx: add support to LSM6DSO")
Signed-off-by: Francesco Lavra <flavra@baylibre.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:50 +09:00
Jiri Olsa
d59a782444 Revert "perf/x86: Always store regs->ip in perf_callchain_kernel()"
commit 6d08340d1e354787d6c65a8c3cdd4d41ffb8a5ed upstream.

This reverts commit 83f44ae0f8.

Currently we store initial stacktrace entry twice for non-HW ot_regs, which
means callers that fail perf_hw_regs(regs) condition in perf_callchain_kernel.

It's easy to reproduce this bpftrace:

  # bpftrace -e 'tracepoint:sched:sched_process_exec { print(kstack()); }'
  Attaching 1 probe...

        bprm_execve+1767
        bprm_execve+1767
        do_execveat_common.isra.0+425
        __x64_sys_execve+56
        do_syscall_64+133
        entry_SYSCALL_64_after_hwframe+118

When perf_callchain_kernel calls unwind_start with first_frame, AFAICS
we do not skip regs->ip, but it's added as part of the unwind process.
Hence reverting the extra perf_callchain_store for non-hw regs leg.

I was not able to bisect this, so I'm not really sure why this was needed
in v5.2 and why it's not working anymore, but I could see double entries
as far as v5.10.

I did the test for both ORC and framepointer unwind with and without the
this fix and except for the initial entry the stacktraces are the same.

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20251104215405.168643-2-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:18:50 +09:00
Hang Zhou
c538dae04a spi: bcm63xx: fix premature CS deassertion on RX-only transactions
[ Upstream commit fd9862f726aedbc2f29a29916cabed7bcf5cadb6 ]

On BCM6358 (and also observed on BCM6368) the controller appears to
only generate as many SPI clocks as bytes that have been written into
the TX FIFO. For RX-only transfers the driver programs the transfer
length in SPI_MSG_CTL but does not write anything into the FIFO, so
chip select is deasserted early and the RX transfer segment is never
fully clocked in.

A concrete failing case is a three-transfer MAC address read from
SPI-NOR:
  - TX 0x03 (read command)
  - TX 3-byte address
  - RX 6 bytes (MAC)

In contrast, a two-transfer JEDEC-ID read (0x9f + 6-byte RX) works
because the driver uses prepend_len and writes dummy bytes into the
TX FIFO for the RX part.

Fix this by writing 0xff dummy bytes into the TX FIFO for RX-only
segments so that the number of bytes written to the FIFO matches the
total message length seen by the controller.

Fixes: b17de07606 ("spi/bcm63xx: work around inability to keep CS up")

Signed-off-by: Hang Zhou <929513338@qq.com>
Link: https://patch.msgid.link/tencent_7AC88FCB3076489A4A7E6C2163DF1ACF8D06@qq.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Andy Shevchenko
01511983d7 spi: nxp-fspi: Propagate fwnode in ACPI case as well
[ Upstream commit 40ad64ac25bb736740f895d99a4aebbda9b80991 ]

Propagate fwnode of the ACPI device to the SPI controller Linux device.
Currently only OF case propagates fwnode to the controller.

While at it, replace several calls to dev_fwnode() with a single one
cached in a local variable, and unify checks for fwnode type by using
is_*_node() APIs.

Fixes: 55ab8487e0 ("spi: spi-nxp-fspi: Add ACPI support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://patch.msgid.link/20251126202501.2319679-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Miquel Raynal
5fc6f8175b spi: nxp-fspi: Support per spi-mem operation frequency switches
[ Upstream commit 26851cf65ffca2d3a8d529a125e54cf0084d69e7 ]

Every ->exec_op() call correctly configures the spi bus speed to the
maximum allowed frequency for the memory using the constant spi default
parameter. Since we can now have per-operation constraints, let's use
the value that comes from the spi-mem operation structure instead. In
case there is no specific limitation for this operation, the default spi
device value will be given anyway.

The per-operation frequency capability is thus advertised to the spi-mem
core.

Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-12-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 40ad64ac25bb ("spi: nxp-fspi: Propagate fwnode in ACPI case as well")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Miquel Raynal
a25cc746f7 spi: spi-mem: Add a new controller capability
[ Upstream commit 1248c9b8d54120950fda10fbeb98fb8932b4d45c ]

There are spi devices with multiple frequency limitations depending on
the invoked command. We probably do not want to afford running at the
lowest supported frequency all the time, so if we want to get the most
of our hardware, we need to allow per-operation frequency limitations.

Among all the SPI memory controllers, I believe all are capable of
changing the spi frequency on the fly. Some of the drivers do not make
any frequency setup though. And some others will derive a per chip
prescaler value which will be used forever.

Actually changing the frequency on the fly is something new in Linux, so
we need to carefully flag the drivers which do and do not support it. A
controller capability is created for that, and the presence for this
capability will always be checked before accepting such pattern.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-2-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 40ad64ac25bb ("spi: nxp-fspi: Propagate fwnode in ACPI case as well")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Miquel Raynal
f1ea0e8b4a spi: spi-mem: Extend spi-mem operations with a per-operation maximum frequency
[ Upstream commit 0fefeade90e74bc8f40ab0e460f483565c492e28 ]

In the spi subsystem, the bus frequency is derived as follows:
- the controller may expose a minimum and maximum operating frequency
- the hardware description, through the spi peripheral properties,
  advise what is the maximum acceptable frequency from a device/wiring
  point of view.
Transfers must be observed at a frequency which fits both (so in
practice, the lowest maximum).

Actually, this second point mixes two information and already takes the
lowest frequency among:
- what the spi device is capable of (what is written in the component
  datasheet)
- what the wiring allows (electromagnetic sensibility, crossovers,
  terminations, antenna effect, etc).

This logic works until spi devices are no longer capable of sustaining
their highest frequency regardless of the operation. Spi memories are
typically subject to such variation. Some devices are capable of
spitting their internally stored data (essentially in read mode) at a
very fast rate, typically up to 166MHz on Winbond SPI-NAND chips, using
"fast" commands. However, some of the low-end operations, such as
regular page read-from-cache commands, are more limited and can only be
executed at 54MHz at most. This is currently a problem in the SPI-NAND
subsystem. Another situation, even if not yet supported, will be with
DTR commands, when the data is latched on both edges of the clock. The
same chips as mentioned previously are in this case limited to
80MHz. Yet another example might be continuous reads, which, under
certain circumstances, can also run at most at 104 or 120MHz.

As a matter of fact, the "one frequency per chip" policy is outdated and
more fine grain configuration is needed: we need to allow per-operation
frequency limitations. So far, all datasheets I encountered advertise a
maximum default frequency, which need to be lowered for certain specific
operations. So based on the current infrastructure, we can still expect
firmware (device trees in general) to continued advertising the same
maximum speed which is a mix between the PCB limitations and the chip
maximum capability, and expect per-operation lower frequencies when this
is relevant.

Add a `struct spi_mem_op` member to carry this information. Not
providing this field explicitly from upper layers means that there is no
further constraint and the default spi device maximum speed will be
carried instead. The SPI_MEM_OP() macro is also expanded with an
optional frequency argument, because virtually all operations can be
subject to such a limitation, and this will allow for a smooth and
discrete transition.

For controller drivers which do not implement the spi-mem interface, the
per-transfer speed is also set acordingly to a lower (than the maximum
default) speed when relevant.

Acked-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-1-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 40ad64ac25bb ("spi: nxp-fspi: Propagate fwnode in ACPI case as well")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Tudor Ambarus
94b3c75587 spi: spi-mem: Allow specifying the byte order in Octal DTR mode
[ Upstream commit 030ace430afcf847f537227afceb22dfe8fb8fc8 ]

There are NOR flashes (Macronix) that swap the bytes on a 16-bit
boundary when configured in Octal DTR mode. The byte order of
16-bit words is swapped when read or written in Octal Double
Transfer Rate (DTR) mode compared to Single Transfer Rate (STR)
modes. If one writes D0 D1 D2 D3 bytes using 1-1-1 mode, and uses
8D-8D-8D SPI mode for reading, it will read back D1 D0 D3 D2.
Swapping the bytes may introduce some endianness problems. It can
affect the boot sequence if the entire boot sequence is not handled
in either 8D-8D-8D mode or 1-1-1 mode. Therefore, it is necessary
to swap the bytes back to ensure the same byte order as in STR modes.
Fortunately there are controllers that could swap the bytes back at
runtime, addressing the flash's endianness requirements. Provide a
way for the upper layers to specify the byte order in Octal DTR mode.

Merge Tudor's patch and add modifications for suiting newer version
of Linux kernel.

Suggested-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: JaimeLiao <jaimeliao@mxic.com.tw>
Signed-off-by: AlvinZhou <alvinzhou@mxic.com.tw>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240926141956.2386374-3-alvinzhou.tw@gmail.com
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Stable-dep-of: 40ad64ac25bb ("spi: nxp-fspi: Propagate fwnode in ACPI case as well")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Haotian Zhang
99aff13bcc spi: amlogic-spifc-a1: Handle devm_pm_runtime_enable() errors
[ Upstream commit a90903c2a3c38bce475f46ea3f93dbf6a9971553 ]

devm_pm_runtime_enable() can fail due to memory allocation. The current
code ignores its return value, potentially causing runtime PM operations
to fail silently after autosuspend configuration.

Check the return value of devm_pm_runtime_enable() and return on failure.

Fixes: 909fac05b9 ("spi: add support for Amlogic A1 SPI Flash Controller")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20251124015852.937-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Francesco Lavra
dbb60bd129 spi: tegra114: remove Kconfig dependency on TEGRA20_APB_DMA
[ Upstream commit 3dcf44ab56e1d3ca3532083c0d5390b758e45b45 ]

This driver runs also on Tegra SoCs without a Tegra20 APB DMA controller
(e.g. Tegra234).
Remove the Kconfig dependency on TEGRA20_APB_DMA; in addition, amend the
help text to reflect the fact that this driver works on SoCs different from
Tegra114.

Fixes: bb9667d818 ("arm64: tegra: Add SPI device tree nodes for Tegra234")
Signed-off-by: Francesco Lavra <flavra@baylibre.com>
Link: https://patch.msgid.link/20251126095027.4102004-1-flavra@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Jamie Iles
f29b58e974 mailbox: pcc: don't zero error register
[ Upstream commit ff0e4d4c97c94af34cc9cad37b5a5cdbe597a3b0 ]

The error status mask for a type 3/4 subspace is used for reading the
error status, and the bitwise inverse is used for clearing the error
with the intent being to preserve any of the non-error bits.  However,
we were previously applying the mask to extract the status and then
applying the inverse to the result which ended up clearing all bits.

Instead, store the inverse mask in the preserve mask and then use that
on the original value read from the error status so that only the error
is cleared.

Fixes: c45ded7e11 ("mailbox: pcc: Add support for PCCT extended PCC subspaces(type 3/4)")
Signed-off-by: Jamie Iles <jamie.iles@oss.qualcomm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@oss.qualcomm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Sudeep Holla
ea621f472c mailbox: pcc: Refactor error handling in irq handler into separate function
[ Upstream commit 3a675f50415b95f2ae10bfd932e2154ba1a08ee7 ]

The existing error handling logic in pcc_mbox_irq() is intermixed with the
main flow of the function. The command complete check and the complete
complete update/acknowledgment are nicely factored into separate functions.

Moves error detection and clearing logic into a separate function called:
pcc_mbox_error_check_and_clear() by extracting error-handling logic from
pcc_mbox_irq().

This ensures error checking and clearing are handled separately and it
improves maintainability by keeping the IRQ handler focused on processing
events.

Acked-by: Huisong Li <lihuisong@huawei.com>
Tested-by: Huisong Li <lihuisong@huawei.com>
Tested-by: Adam Young <admiyo@os.amperecomputing.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Stable-dep-of: ff0e4d4c97c9 ("mailbox: pcc: don't zero error register")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Haotian Zhang
5550f90218 mailbox: mailbox-test: Fix debugfs_create_dir error checking
[ Upstream commit 3acf1028f5003731977f750a7070f3321a9cb740 ]

The debugfs_create_dir() function returns ERR_PTR() on error, not NULL.
The current null-check fails to catch errors.

Use IS_ERR() to correctly check for errors.

Fixes: 8ea4484d0c ("mailbox: Add generic mechanism for testing Mailbox Controllers")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:50 +09:00
Haotian Zhang
8267859256 usb: gadget: renesas_usbf: Handle devm_pm_runtime_enable() errors
[ Upstream commit 74851fbb6d647304f8a7dc491434d3a335ef4b8d ]

devm_pm_runtime_enable() can fail due to memory allocation.
The current code ignores its return value, potentially causing
pm_runtime_resume_and_get() to operate on uninitialized runtime
PM state.

Check the return value of devm_pm_runtime_enable() and return on failure.

Fixes: 3e6e14ffde ("usb: gadget: udc: add Renesas RZ/N1 USBF controller support")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251124022215.1619-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Mario Tesi
cad94b17e2 iio: st_lsm6dsx: Fixed calibrated timestamp calculation
[ Upstream commit 8abbf45fcda028c2c05ba38eb14ede9fa9e7341b ]

The calibrated timestamp is calculated from the nominal value using the
formula:
  ts_gain[ns] ≈ ts_sensitivity - (ts_trim_coeff * val) / 1000.

The values of ts_sensitivity and ts_trim_coeff are not the same for all
devices, so it is necessary to differentiate them based on the part name.
For the correct values please consult the relevant AN.

Fixes: cb3b6b8e1b ("iio: imu: st_lsm6dsx: add odr calibration feature")
Signed-off-by: Mario Tesi <mario.tesi@st.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Wei Fang
21f867e3da net: fec: do not register PPS event for PEROUT
[ Upstream commit 9a060d0fac9e75524f72864adec6d8cdb70a5bca ]

There are currently two situations that can trigger the PTP interrupt,
one is the PPS event, the other is the PEROUT event. However, the irq
handler fec_pps_interrupt() does not check the irq event type and
directly registers a PPS event into the system, but the event may be
a PEROUT event. This is incorrect because PEROUT is an output signal,
while PPS is the input of the kernel PPS system. Therefore, add a check
for the event type, if pps_enable is true, it means that the current
event is a PPS event, and then the PPS event is registered.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-5-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Wei Fang
2648b8b519 net: fec: do not allow enabling PPS and PEROUT simultaneously
[ Upstream commit c0a1f3d7e128e8d1b6c0fe09c68eac5ebcf677c8 ]

In the current driver, PPS and PEROUT use the same channel to generate
the events, so they cannot be enabled at the same time. Otherwise, the
later configuration will overwrite the earlier configuration. Therefore,
when configuring PPS, the driver will check whether PEROUT is enabled.
Similarly, when configuring PEROUT, the driver will check whether PPS
is enabled.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-4-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Wei Fang
b332c43348 net: fec: do not update PEROUT if it is enabled
[ Upstream commit e97faa0c20ea8840f45569ba434e30538fff8fc9 ]

If the previously set PEROUT is already active, updating it will cause
the new PEROUT to start immediately instead of at the specified time.
This is because fep->reload_period is updated whithout check whether
the PEROUT is enabled, and the old PEROUT is not disabled. Therefore,
the pulse period will be updated immediately in the pulse interrupt
handler fec_pps_interrupt().

Currently, the driver does not support directly updating PEROUT and it
will make the logic be more complicated. To fix the current issue, add
a check before enabling the PEROUT, the driver will return an error if
PEROUT is enabled. If users wants to update a new PEROUT, they should
disable the old PEROUT first.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-3-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Wei Fang
2d8f6acf56 net: fec: cancel perout_timer when PEROUT is disabled
[ Upstream commit 50caa744689e505414673c20359b04aa918439e3 ]

The PEROUT allows the user to set a specified future time to output the
periodic signal. If the future time is far from the current time, the FEC
driver will use hrtimer to configure PEROUT one second before the future
time. However, the hrtimer will not be canceled if the PEROUT is disabled
before the hrtimer expires. So the PEROUT will be configured when the
hrtimer expires, which is not as expected. Therefore, cancel the hrtimer
in fec_ptp_pps_disable() to fix this issue.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-2-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Jiefeng Zhang
3be37c3c96 net: atlantic: fix fragment overflow handling in RX path
[ Upstream commit 5ffcb7b890f61541201461580bb6622ace405aec ]

The atlantic driver can receive packets with more than MAX_SKB_FRAGS (17)
fragments when handling large multi-descriptor packets. This causes an
out-of-bounds write in skb_add_rx_frag_netmem() leading to kernel panic.

The issue occurs because the driver doesn't check the total number of
fragments before calling skb_add_rx_frag(). When a packet requires more
than MAX_SKB_FRAGS fragments, the fragment index exceeds the array bounds.

Fix by assuming there will be an extra frag if buff->len > AQ_CFG_RX_HDR_SIZE,
then all fragments are accounted for. And reusing the existing check to
prevent the overflow earlier in the code path.

This crash occurred in production with an Aquantia AQC113 10G NIC.

Stack trace from production environment:
```
RIP: 0010:skb_add_rx_frag_netmem+0x29/0xd0
Code: 90 f3 0f 1e fa 0f 1f 44 00 00 48 89 f8 41 89
ca 48 89 d7 48 63 ce 8b 90 c0 00 00 00 48 c1 e1 04 48 01 ca 48 03 90
c8 00 00 00 <48> 89 7a 30 44 89 52 3c 44 89 42 38 40 f6 c7 01 75 74 48
89 fa 83
RSP: 0018:ffffa9bec02a8d50 EFLAGS: 00010287
RAX: ffff925b22e80a00 RBX: ffff925ad38d2700 RCX:
fffffffe0a0c8000
RDX: ffff9258ea95bac0 RSI: ffff925ae0a0c800 RDI:
0000000000037a40
RBP: 0000000000000024 R08: 0000000000000000 R09:
0000000000000021
R10: 0000000000000848 R11: 0000000000000000 R12:
ffffa9bec02a8e24
R13: ffff925ad8615570 R14: 0000000000000000 R15:
ffff925b22e80a00
FS: 0000000000000000(0000)
GS:ffff925e47880000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9258ea95baf0 CR3: 0000000166022004 CR4:
0000000000f72ef0
PKRU: 55555554
Call Trace:
<IRQ>
aq_ring_rx_clean+0x175/0xe60 [atlantic]
? aq_ring_rx_clean+0x14d/0xe60 [atlantic]
? aq_ring_tx_clean+0xdf/0x190 [atlantic]
? kmem_cache_free+0x348/0x450
? aq_vec_poll+0x81/0x1d0 [atlantic]
? __napi_poll+0x28/0x1c0
? net_rx_action+0x337/0x420
```

Fixes: 6aecbba12b ("net: atlantic: add check for MAX_SKB_FRAGS")
Changes in v4:
- Add Fixes: tag to satisfy patch validation requirements.

Changes in v3:
- Fix by assuming there will be an extra frag if buff->len > AQ_CFG_RX_HDR_SIZE,
  then all fragments are accounted for.

Signed-off-by: Jiefeng Zhang <jiefeng.z.zhang@gmail.com>
Link: https://patch.msgid.link/20251126032249.69358-1-jiefeng.z.zhang@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Vladimir Oltean
90daa70a4d net: dsa: sja1105: fix SGMII linking at 10M or 100M but not passing traffic
[ Upstream commit da62abaaa268357b1aa66b372ace562189a05df1 ]

When using the SGMII PCS as a fixed-link chip-to-chip connection, it is
easy to miss the fact that traffic passes only at 1G, since that's what
any normal such connection would use.

When using the SGMII PCS connected towards an on-board PHY or an SFP
module, it is immediately noticeable that when the link resolves to a
speed other than 1G, traffic from the MAC fails to pass: TX counters
increase, but nothing gets decoded by the other end, and no local RX
counters increase either.

Artificially lowering a fixed-link rate to speed = <100> makes us able
to see the same issue as in the case of having an SGMII PHY.

Some debugging shows that the XPCS configuration is A-OK, but that the
MAC Configuration Table entry for the port has the SPEED bits still set
to 1000Mbps, due to a special condition in the driver. Deleting that
condition, and letting the resolved link speed be programmed directly
into the MAC speed field, results in a functional link at all 3 speeds.

This piece of evidence, based on testing on both generations with SGMII
support (SJA1105S and SJA1110A) directly contradicts the statement from
the blamed commit that "the MAC is fixed at 1 Gbps and we need to
configure the PCS only (if even that)". Worse, that statement is not
backed by any documentation, and no one from NXP knows what it might
refer to.

I am unable to recall sufficient context regarding my testing from March
2020 to understand what led me to draw such a braindead and factually
incorrect conclusion. Yet, there is nothing of value regarding forcing
the MAC speed, either for SGMII or 2500Base-X (introduced at a later
stage), so remove all such logic.

Fixes: ffe10e679c ("net: dsa: sja1105: Add support for the SGMII port")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20251122111324.136761-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Russell King (Oracle)
d25c17507e net: dsa: sja1105: simplify static configuration reload
[ Upstream commit a18891b55703a45b700618ef40edd5e9aaecc345 ]

The static configuration reload saves the port speed in the static
configuration tables by first converting it from the internal
respresentation to the SPEED_xxx ethtool representation, and then
converts it back to restore the setting. This is because
sja1105_adjust_port_config() takes the speed as SPEED_xxx.

However, this is unnecessarily complex. If we split
sja1105_adjust_port_config() up, we can simply save and restore the
mac[port].speed member in the static configuration tables.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfMa-005ZIX-If@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: da62abaaa268 ("net: dsa: sja1105: fix SGMII linking at 10M or 100M but not passing traffic")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Alex Deucher
0be4d79f8a drm/amdgpu: fix cyan_skillfish2 gpu info fw handling
[ Upstream commit 7fa666ab07ba9e08f52f357cb8e1aad753e83ac6 ]

If the board supports IP discovery, we don't need to
parse the gpu info firmware.

Backport to 6.18.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4721
Fixes: fa819e3a7c1e ("drm/amdgpu: add support for cyan skillfish gpu_info")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5427e32fa3a0ba9a016db83877851ed277b065fb)
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Alexey Kodanev
7fd789d6ea net: sxgbe: fix potential NULL dereference in sxgbe_rx()
[ Upstream commit f5bce28f6b9125502abec4a67d68eabcd24b3b17 ]

Currently, when skb is null, the driver prints an error and then
dereferences skb on the next line.

To fix this, let's add a 'break' after the error message to switch
to sxgbe_rx_refill(), which is similar to the approach taken by the
other drivers in this particular case, e.g. calxeda with xgmac_rx().

Found during a code review.

Fixes: 1edb9ca69e ("net: sxgbe: add basic framework for Samsung 10Gb ethernet driver")
Signed-off-by: Alexey Kodanev <aleksei.kodanev@bell-sw.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251121123834.97748-1-aleksei.kodanev@bell-sw.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Danielle Costantino
aa20dcff03 net/mlx5e: Fix validation logic in rate limiting
[ Upstream commit d2099d9f16dbfa1c5266d4230ff7860047bb0b68 ]

The rate limiting validation condition currently checks the output
variable max_bw_value[i] instead of the input value
maxrate->tc_maxrate[i]. This causes the validation to compare an
uninitialized or stale value rather than the actual requested rate.

The condition should check the input rate to properly validate against
the upper limit:

    } else if (maxrate->tc_maxrate[i] <= upper_limit_gbps) {

This aligns with the pattern used in the first branch, which correctly
checks maxrate->tc_maxrate[i] against upper_limit_mbps.

The current implementation can lead to unreliable validation behavior:

- For rates between 25.5 Gbps and 255 Gbps, if max_bw_value[i] is 0
  from initialization, the GBPS path may be taken regardless of whether
  the actual rate is within bounds

- When processing multiple TCs (i > 0), max_bw_value[i] contains the
  value computed for the previous TC, affecting the validation logic

- The overflow check for rates exceeding 255 Gbps may not trigger
  consistently depending on previous array values

This patch ensures the validation correctly examines the requested rate
value for proper bounds checking.

Fixes: 43b27d1bd88a ("net/mlx5e: Fix wraparound in rate limiting for values above 255 Gbps")
Signed-off-by: Danielle Costantino <dcostantino@meta.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20251124180043.2314428-1-dcostantino@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Horatiu Vultur
58c4115091 net: lan966x: Fix the initialization of taprio
[ Upstream commit 9780f535f8e0f20b4632b5a173ead71aa8f095d2 ]

To initialize the taprio block in lan966x, it is required to configure
the register REVISIT_DLY. The purpose of this register is to set the
delay before revisit the next gate and the value of this register depends
on the system clock. The problem is that the we calculated wrong the value
of the system clock period in picoseconds. The actual system clock is
~165.617754MHZ and this correspond to a period of 6038 pico seconds and
not 15125 as currently set.

Fixes: e462b27173 ("net: lan966x: Add offload support for taprio")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251121061411.810571-1-horatiu.vultur@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Kai-Heng Feng
30a1d3db72 net: aquantia: Add missing descriptor cache invalidation on ATL2
[ Upstream commit 7526183cfdbe352c51c285762f0e15b7c428ea06 ]

ATL2 hardware was missing descriptor cache invalidation in hw_stop(),
causing SMMU translation faults during device shutdown and module removal:
[   70.355743] arm-smmu-v3 arm-smmu-v3.5.auto: event 0x10 received:
[   70.361893] arm-smmu-v3 arm-smmu-v3.5.auto:  0x0002060000000010
[   70.367948] arm-smmu-v3 arm-smmu-v3.5.auto:  0x0000020000000000
[   70.374002] arm-smmu-v3 arm-smmu-v3.5.auto:  0x00000000ff9bc000
[   70.380055] arm-smmu-v3 arm-smmu-v3.5.auto:  0x0000000000000000
[   70.386109] arm-smmu-v3 arm-smmu-v3.5.auto: event: F_TRANSLATION client: 0001:06:00.0 sid: 0x20600 ssid: 0x0 iova: 0xff9bc000 ipa: 0x0
[   70.398531] arm-smmu-v3 arm-smmu-v3.5.auto: unpriv data write s1 "Input address caused fault" stag: 0x0

Commit 7a1bb49461 ("net: aquantia: fix potential IOMMU fault after
driver unbind") and commit ed4d81c4b3 ("net: aquantia: when cleaning
hw cache it should be toggled") fixed cache invalidation for ATL B0, but
ATL2 was left with only interrupt disabling. This allowed hardware to
write to cached descriptors after DMA memory was unmapped, triggering
SMMU faults. Once cache invalidation is applied to ATL2, the translation
fault can't be observed anymore.

Add shared aq_hw_invalidate_descriptor_cache() helper and use it in both
ATL B0 and ATL2 hw_stop() implementations for consistent behavior.

Fixes: e54dcf4bba ("net: atlantic: basic A2 init/deinit hw_ops")
Tested-by: Carol Soto <csoto@nvidia.com>
Signed-off-by: Kai-Heng Feng <kaihengf@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251120041537.62184-1-kaihengf@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:49 +09:00
Dan Carpenter
3e7442c580 platform/x86: intel: punit_ipc: fix memory corruption
[ Upstream commit 9b9c0adbc3f8a524d291baccc9d0c04097fb4869 ]

This passes the address of the pointer "&punit_ipcdev" when the intent
was to pass the pointer itself "punit_ipcdev" (without the ampersand).
This means that the:

	complete(&ipcdev->cmd_complete);

in intel_punit_ioc() will write to a wrong memory address corrupting it.

Fixes: fdca4f16f5 ("platform:x86: add Intel P-Unit mailbox IPC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aSCmoBipSQ_tlD-D@stanley.mountain
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Daniel Golle
ff45dd52bd net: phy: mxl-gpy: fix bogus error on USXGMII and integrated PHY
[ Upstream commit ec3803b5917b6ff2f86ea965d0985c95d8a85119 ]

As the interface mode doesn't need to be updated on PHYs connected with
USXGMII and integrated PHYs, gpy_update_interface() should just return 0
in these cases rather than -EINVAL which has wrongly been introduced by
commit 7a495dde27 ("net: phy: mxl-gpy: Change gpy_update_interface()
function return type"), as this breaks support for those PHYs.

Fixes: 7a495dde27 ("net: phy: mxl-gpy: Change gpy_update_interface() function return type")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/f744f721a1fcc5e2e936428c62ff2c7d94d2a293.1763648168.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Luiz Augusto von Dentz
fd6a1261d0 Bluetooth: SMP: Fix not generating mackey and ltk when repairing
[ Upstream commit 545d7827b2cd5de5eb85580cebeda6b35b3ff443 ]

The change eed467b517 ("Bluetooth: fix passkey uninitialized when used")
introduced a goto that bypasses the creation of temporary mackey and ltk
which are later used by the likes of DHKey Check step.

Later ffee202a78 ("Bluetooth: Always request for user confirmation for
Just Works (LE SC)") which means confirm_hint is always set in case
JUST_WORKS so the branch checking for an existing LTK becomes pointless
as confirm_hint will always be set, so this just merge both cases of
malicious or legitimate devices to be confirmed before continuing with the
pairing procedure.

Link: https://github.com/bluez/bluez/issues/1622
Fixes: eed467b517 ("Bluetooth: fix passkey uninitialized when used")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Edward Adam Davis
fe68510fc9 Bluetooth: hci_sock: Prevent race in socket write iter and sock bind
[ Upstream commit 89bb613511cc21ed5ba6bddc1c9b9ae9c0dad392 ]

There is a potential race condition between sock bind and socket write
iter. bind may free the same cmd via mgmt_pending before write iter sends
the cmd, just as syzbot reported in UAF[1].

Here we use hci_dev_lock to synchronize the two, thereby avoiding the
UAF mentioned in [1].

[1]
syzbot reported:
BUG: KASAN: slab-use-after-free in mgmt_pending_remove+0x3b/0x210 net/bluetooth/mgmt_util.c:316
Read of size 8 at addr ffff888077164818 by task syz.0.17/5989
Call Trace:
 mgmt_pending_remove+0x3b/0x210 net/bluetooth/mgmt_util.c:316
 set_link_security+0x5c2/0x710 net/bluetooth/mgmt.c:1918
 hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719
 hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 sock_write_iter+0x279/0x360 net/socket.c:1195

Allocated by task 5989:
 mgmt_pending_add+0x35/0x140 net/bluetooth/mgmt_util.c:296
 set_link_security+0x557/0x710 net/bluetooth/mgmt.c:1910
 hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719
 hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 sock_write_iter+0x279/0x360 net/socket.c:1195

Freed by task 5991:
 mgmt_pending_free net/bluetooth/mgmt_util.c:311 [inline]
 mgmt_pending_foreach+0x30d/0x380 net/bluetooth/mgmt_util.c:257
 mgmt_index_removed+0x112/0x2f0 net/bluetooth/mgmt.c:9477
 hci_sock_bind+0xbe9/0x1000 net/bluetooth/hci_sock.c:1314

Fixes: 6fe26f694c82 ("Bluetooth: MGMT: Protect mgmt_pending list with its own lock")
Reported-by: syzbot+9aa47cd4633a3cf92a80@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=9aa47cd4633a3cf92a80
Tested-by: syzbot+9aa47cd4633a3cf92a80@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Marc Kleine-Budde
4ffac72515 can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data
[ Upstream commit 395d988f93861101ec89d0dd9e3b876ae9392a5b ]

The URB received in gs_usb_receive_bulk_callback() contains a struct
gs_host_frame. The length of the data after the header depends on the
gs_host_frame hf::flags and the active device features (e.g. time
stamping).

Introduce a new function gs_usb_get_minimum_length() and check that we have
at least received the required amount of data before accessing it. Only
copy the data to that skb that has actually been received.

Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://patch.msgid.link/20251114-gs_usb-fix-usb-callbacks-v1-3-a29b42eacada@pengutronix.de
[mkl: rename gs_usb_get_minimum_length() -> +gs_usb_get_minimum_rx_length()]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Marc Kleine-Budde
3433680b75 can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header
[ Upstream commit 6fe9f3279f7d2518439a7962c5870c6e9ecbadcf ]

The driver expects to receive a struct gs_host_frame in
gs_usb_receive_bulk_callback().

Use struct_group to describe the header of the struct gs_host_frame and
check that we have at least received the header before accessing any
members of it.

To resubmit the URB, do not dereference the pointer chain
"dev->parent->hf_size_rx" but use "parent->hf_size_rx" instead. Since
"urb->context" contains "parent", it is always defined, while "dev" is not
defined if the URB it too short.

Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://patch.msgid.link/20251114-gs_usb-fix-usb-callbacks-v1-2-a29b42eacada@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Marc Kleine-Budde
1a588c40a4 can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs
[ Upstream commit 516a0cd1c03fa266bb67dd87940a209fd4e53ce7 ]

The driver lacks the cleanup of failed transfers of URBs. This reduces the
number of available URBs per error by 1. This leads to reduced performance
and ultimately to a complete stop of the transmission.

If the sending of a bulk URB fails do proper cleanup:
- increase netdev stats
- mark the echo_sbk as free
- free the driver's context and do accounting
- wake the send queue

Closes: https://github.com/candle-usb/candleLight_fw/issues/187
Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://patch.msgid.link/20251114-gs_usb-fix-usb-callbacks-v1-1-a29b42eacada@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Seungjin Bae
e9dd83a75a can: kvaser_usb: leaf: Fix potential infinite loop in command parsers
[ Upstream commit 0c73772cd2b8cc108d5f5334de89ad648d89b9ec ]

The `kvaser_usb_leaf_wait_cmd()` and `kvaser_usb_leaf_read_bulk_callback`
functions contain logic to zero-length commands. These commands are used
to align data to the USB endpoint's wMaxPacketSize boundary.

The driver attempts to skip these placeholders by aligning the buffer
position `pos` to the next packet boundary using `round_up()` function.

However, if zero-length command is found exactly on a packet boundary
(i.e., `pos` is a multiple of wMaxPacketSize, including 0), `round_up`
function will return the unchanged value of `pos`. This prevents `pos`
to be increased, causing an infinite loop in the parsing logic.

This patch fixes this in the function by using `pos + 1` instead.
This ensures that even if `pos` is on a boundary, the calculation is
based on `pos + 1`, forcing `round_up()` to always return the next
aligned boundary.

Fixes: 7259124eac ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c")
Signed-off-by: Seungjin Bae <eeodqql09@gmail.com>
Reviewed-by: Jimmy Assarsson <extja@kvaser.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20251023162709.348240-1-eeodqql09@gmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-07 06:18:48 +09:00
Greg Kroah-Hartman
4791134e4a Linux 6.6.118
Link: https://lore.kernel.org/r/20251127144027.800761504@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-01 11:41:54 +01:00