Commit Graph

978433 Commits

Author SHA1 Message Date
Can Guo
22bc7e38f1 BACKPORT: FROMGIT: scsi: ufs: Fix a possible NULL pointer issue
During system resume/suspend, hba could be NULL. In this case, do not touch
eh_sem.

Fixes: 88a92d6ae4 ("scsi: ufs: Serialize eh_work with system PM events and async scan")
Link: https://lore.kernel.org/r/1610594010-7254-2-git-send-email-cang@codeaurora.org
Acked-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Bug: 189457922
(cherry picked from commit fb7afe24ba
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.14/scsi-queue)
[Can Guo: Resolved minor conflict in ufshcd.c]
Change-Id: I7c2cfaf95b8e24529929377096b882cad4fe3c35
Signed-off-by: Can Guo <cang@codeaurora.org>
2021-05-28 11:27:16 +00:00
Bean Huo
a0b04503a2 FROMGIT: scsi: ufs: Replace sprintf and snprintf with sysfs_emit
sprintf and snprintf may cause output defect in sysfs content, it is better
to use new added sysfs_emit function which knows the size of the temporary
buffer.

Link: https://lore.kernel.org/r/20210106211541.23039-1-huobean@gmail.com
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Bug: 189457922
(cherry picked from commit d9edeb8b47
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.14/scsi-queue)
Change-Id: I7ae5d3f63ff41c8296cc3704e08fea4401fc49b4
Signed-off-by: Can Guo <cang@codeaurora.org>
2021-05-28 11:26:54 +00:00
Badhri Jagan Sridharan
24455210fa FROMGIT: usb: typec: tcpm: Refactor logic to enable/disable auto vbus dicharge
The logic to enable vbus auto discharge on disconnect is used in
more than one place. Since this is repetitive code, moving this into
its own method.

Bug: 185300749
Fixes: f321a02cae ("usb: typec: tcpm: Implement enabling Auto Discharge disconnect support")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210517192112.40934-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit dea6f87e60
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next)
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Change-Id: I416e9a8a131b1dcd17d69322af77e5fb575e86cc
2021-05-28 08:47:04 +00:00
Badhri Jagan Sridharan
ee87839030 FROMGIT: usb: typec: tcpm: Fix up PR_SWAP when vsafe0v is signalled
During PR_SWAP, When TCPM is in PR_SWAP_SNK_SRC_SINK_OFF, vbus is
expected to reach VSAFE0V when source turns off vbus. Do not move
to SNK_UNATTACHED state when this happens.

Bug: 185300749
Fixes: 28b43d3d74 ("usb: typec: tcpm: Introduce vsafe0v for vbus")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210517192112.40934-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
((cherry picked from commit d112efbe6d
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next)
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Change-Id: I94ca93ad5467d6da003a4f504637b4f99a0cf6be
2021-05-28 08:46:32 +00:00
ted.lin
cadbca1c5e ANDROID: vendor_hooks: Add a hook for task tagging
Add a hook to tag task by its comm.
Easy way to identity a task by its tag.

Bug: 189352151
Signed-off-by: ted.lin <ted.lin@oneplus.com>
Change-Id: I32f2f7cec6643f4bd48312b9cffa770c902cebf3
2021-05-28 00:19:52 +00:00
Greg Kroah-Hartman
4968ab31d1 Merge 5.10.40 into android12-5.10
Changes in 5.10.40
	firmware: arm_scpi: Prevent the ternary sign expansion bug
	openrisc: Fix a memory leak
	tee: amdtee: unload TA only when its refcount becomes 0
	RDMA/siw: Properly check send and receive CQ pointers
	RDMA/siw: Release xarray entry
	RDMA/core: Prevent divide-by-zero error triggered by the user
	RDMA/rxe: Clear all QP fields if creation failed
	scsi: ufs: core: Increase the usable queue depth
	scsi: qedf: Add pointer checks in qedf_update_link_speed()
	scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()
	RDMA/mlx5: Recover from fatal event in dual port mode
	RDMA/core: Don't access cm_id after its destruction
	nvmet: remove unused ctrl->cqs
	nvmet: fix memory leak in nvmet_alloc_ctrl()
	nvme-loop: fix memory leak in nvme_loop_create_ctrl()
	nvme-tcp: rerun io_work if req_list is not empty
	nvme-fc: clear q_live at beginning of association teardown
	platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue
	platform/x86: intel_int0002_vgpio: Only call enable_irq_wake() when using s2idle
	platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
	RDMA/mlx5: Fix query DCT via DEVX
	RDMA/uverbs: Fix a NULL vs IS_ERR() bug
	tools/testing/selftests/exec: fix link error
	powerpc/pseries: Fix hcall tracing recursion in pv queued spinlocks
	ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
	nvmet: seset ns->file when open fails
	perf/x86: Avoid touching LBR_TOS MSR for Arch LBR
	locking/lockdep: Correct calling tracepoints
	locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal
	powerpc: Fix early setup to make early_ioremap() work
	btrfs: avoid RCU stalls while running delayed iputs
	cifs: fix memory leak in smb2_copychunk_range
	misc: eeprom: at24: check suspend status before disable regulator
	ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency
	ALSA: intel8x0: Don't update period unless prepared
	ALSA: firewire-lib: fix amdtp_packet tracepoints event for packet_index field
	ALSA: line6: Fix racy initialization of LINE6 MIDI
	ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26
	ALSA: firewire-lib: fix calculation for size of IR context payload
	ALSA: usb-audio: Validate MS endpoint descriptors
	ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro
	ALSA: hda: fixup headset for ASUS GU502 laptop
	Revert "ALSA: sb8: add a check for request_region"
	ALSA: firewire-lib: fix check for the size of isochronous packet payload
	ALSA: hda/realtek: reset eapd coeff to default value for alc287
	ALSA: hda/realtek: Add some CLOVE SSIDs of ALC293
	ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA
	ALSA: hda/realtek: Add fixup for HP OMEN laptop
	ALSA: hda/realtek: Add fixup for HP Spectre x360 15-df0xxx
	uio_hv_generic: Fix a memory leak in error handling paths
	Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails"
	rapidio: handle create_workqueue() failure
	Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference"
	nvme-tcp: fix possible use-after-completion
	x86/sev-es: Move sev_es_put_ghcb() in prep for follow on patch
	x86/sev-es: Invalidate the GHCB after completing VMGEXIT
	x86/sev-es: Don't return NULL from sev_es_get_ghcb()
	x86/sev-es: Use __put_user()/__get_user() for data accesses
	x86/sev-es: Forward page-faults which happen during emulation
	drm/amdgpu: Fix GPU TLB update error when PAGE_SIZE > AMDGPU_PAGE_SIZE
	drm/amdgpu: disable 3DCGCG on picasso/raven1 to avoid compute hang
	drm/amdgpu: update gc golden setting for Navi12
	drm/amdgpu: update sdma golden setting for Navi12
	powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
	powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls
	mmc: sdhci-pci-gli: increase 1.8V regulator wait
	xen-pciback: redo VF placement in the virtual topology
	xen-pciback: reconfigure also from backend watch handler
	ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
	dm snapshot: fix crash with transient storage and zero chunk size
	kcsan: Fix debugfs initcall return type
	Revert "video: hgafb: fix potential NULL pointer dereference"
	Revert "net: stmicro: fix a missing check of clk_prepare"
	Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
	Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
	Revert "video: imsttfb: fix potential NULL pointer dereferences"
	Revert "ecryptfs: replace BUG_ON with error handling code"
	Revert "scsi: ufs: fix a missing check of devm_reset_control_get"
	Revert "gdrom: fix a memory leak bug"
	cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
	cdrom: gdrom: initialize global variable at init time
	Revert "media: rcar_drif: fix a memory disclosure"
	Revert "rtlwifi: fix a potential NULL pointer dereference"
	Revert "qlcnic: Avoid potential NULL pointer dereference"
	Revert "niu: fix missing checks of niu_pci_eeprom_read"
	ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read()
	net: stmicro: handle clk_prepare() failure during init
	scsi: ufs: handle cleanup correctly on devm_reset_control_get error
	net: rtlwifi: properly check for alloc_workqueue() failure
	ics932s401: fix broken handling of errors when word reading fails
	leds: lp5523: check return value of lp5xx_read and jump to cleanup code
	qlcnic: Add null check after calling netdev_alloc_skb
	video: hgafb: fix potential NULL pointer dereference
	vgacon: Record video mode changes with VT_RESIZEX
	vt_ioctl: Revert VT_RESIZEX parameter handling removal
	vt: Fix character height handling with VT_RESIZEX
	tty: vt: always invoke vc->vc_sw->con_resize callback
	drm/i915/gt: Disable HiZ Raw Stall Optimization on broken gen7
	openrisc: mm/init.c: remove unused memblock_region variable in map_ram()
	x86/Xen: swap NX determination and GDT setup on BSP
	nvme-multipath: fix double initialization of ANA state
	rtc: pcf85063: fallback to parent of_node
	x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path
	nvmet: use new ana_log_size instead the old one
	video: hgafb: correctly handle card detect failure during probe
	Bluetooth: SMP: Fail if remote and local public keys are identical
	Linux 5.10.40

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4523cf43d1da6bea507e4027bd83bc491a574f41
2021-05-27 08:36:46 +02:00
Howard Chen
9f8cf79e74 ANDROID: Update virtual platform symbol list
Update symbol list generated for the virtual platform

Bug: 189175929
Test: BUILD_CONFIG=common-modules/virtual-device/build.config.virtual_device.aarch64 \
    build/build_abi.sh --update-symbol-list

Change-Id: Icb02c4ccc6b680c88b7da85bec8685393daca747
Signed-off-by: Howard Chen <howardsoc@google.com>
2021-05-27 03:02:55 +00:00
Akilesh Kailash
347bb119f5 ANDROID: dm-user: Fix build warnings
Fix kernelci build warnings for 'allmodconfig' builds.

In file included from ../include/linux/printk.h:7,
                 from ../include/linux/kernel.h:16,
                 from ../include/linux/list.h:9,
                 from ../include/linux/wait.h:7,
                 from ../include/linux/wait_bit.h:8,
                 from ../include/linux/fs.h:6,
                 from ../include/linux/highmem.h:5,
                 from ../include/linux/bio.h:8,
                 from ../include/linux/device-mapper.h:11,
                 from ../drivers/md/dm-user.c:7:
../drivers/md/dm-user.c: In function ‘process_delayed_work’:
../include/linux/kern_levels.h:5:18: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘sector_t’ {aka ‘long long unsigned int’} [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^~~~~~
../include/linux/kern_levels.h:11:18: note: in expansion of macro ‘KERN_SOH’
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^~~~~~~~
../include/linux/printk.h:348:9: note: in expansion of macro ‘KERN_ERR’
  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         ^~~~~~~~
../drivers/md/dm-user.c:222:2: note: in expansion of macro ‘pr_err’
  pr_err("IO error: sector %d: no user-space daemon for %s target\n",
  ^~~~~~
../drivers/md/dm-user.c:222:28: note: format string is defined here
  pr_err("IO error: sector %d: no user-space daemon for %s target\n",
                           ~^
                           %lld

Bug: 188362117
Test: Build
Reported-by: tkjos@google.com
Fixes: 9d80dbe0a3 ("ANDROID: dm-user: Fail the IO if there is no daemon")
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: Ia9fbac76616a8f8c743e16f0fc8ba0cd3e498b9e
2021-05-27 00:57:57 +00:00
Ram Chandrasekar
77d89f6d91 ANDROID: abi_gki_aarch64_qcom: Add devfreq_get_devfreq_by_node symbol
Add devfreq_get_devfreq_by_node symbol for drivers to get devfreq
reference from device node.

Leaf changes summary: 1 artifact changed (1 filtered out)
Changed leaf types summary: 0 (1 filtered out) leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added
function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added
variable

1 Added function:

  [A] 'function devfreq* devfreq_get_devfreq_by_node(device_node*)'

Bug: 189313336
Change-Id: Ica4d873622370b547fa7e675c33d22acc01a5480
Signed-off-by: Ram Chandrasekar <quic_rkumbako@quicinc.com>
2021-05-27 00:52:40 +00:00
J. Avila
629a82a0f3 ANDROID: abi_gki_aarch64_mtk: Remove execute permissions
When this was uploaded, it was mistakenly made executable. Fix that.

Fixes: 78a9cd650a ("ANDROID: add initial symbol list for mtk")
Signed-off-by: J. Avila <elavila@google.com>
Change-Id: I24be8828e25a8262b513857b11e997f40a0a6a68
2021-05-26 22:43:25 +00:00
Minchan Kim
fbdf9cd38a FROMLIST: mm: page_alloc: dump migrate-failed pages only at -EBUSY
alloc_contig_dump_pages() aims for helping debugging page migration
failure by elevated page refcount compared to expected_count.  (for the
detail, please look at migrate_page_move_mapping)

However, -ENOMEM is just the case that system is under memory pressure
state, not relevant with page refcount at all.  Thus, the dumping page
list is not helpful for the debugging point of view.

Link: https://lkml.kernel.org/r/YKa2Wyo9xqIErpfa@google.com
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: John Dias <joaodias@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Bug: 188908895
Link: https://lore.kernel.org/mm-commits/20210525000343.YBEWQU38O%25akpm@linux-foundation.org/T/#u
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ia077e0d88375d2b59fa5f2a8a530257c6558e8d5
2021-05-26 18:31:23 +00:00
Liujie Xie
8c944335a3 ANDROID: Fix access invalid addr because it is not initialized
The addr is not initialized, we may access a random value.

Fixes: dc5241048f ("ANDROID: vendor_hooks: Add hooks for reducing virtual address fragmentation")
Bug: 187259935
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: I770bf5e69e6fcd4e1ccd3987b4891156892de758
2021-05-26 18:00:01 +00:00
Alexander Potapenko
5a18a6da18 UPSTREAM: kasan: slab: always reset the tag in get_freepointer_safe()
With CONFIG_DEBUG_PAGEALLOC enabled, the kernel should also untag the
object pointer, as done in get_freepointer().

Failing to do so reportedly leads to SLUB freelist corruptions that
manifest as boot-time crashes.

Link: https://lkml.kernel.org/r/20210514072228.534418-1-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Elliot Berman <eberman@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Bug: 181230759
Test: run on QEMU with CONFIG_DEBUG_PAGEALLOC
(cherry picked from commit f70b00496f)
Signed-off-by: Alexander Potapenko <glider@google.com>
Change-Id: Ifb512c0241465d8035d55a161bcc304d5b2287d5
2021-05-26 13:10:43 +02:00
Greg Kroah-Hartman
4068786a86 Linux 5.10.40
Link: https://lore.kernel.org/r/20210524152332.844251980@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Jason Self <jason@bluehome.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Luiz Augusto von Dentz
d8d261c7cf Bluetooth: SMP: Fail if remote and local public keys are identical
commit 6d19628f53 upstream.

This fails the pairing procedure when both remote and local non-debug
public keys are identical.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Anirudh Rayabharam
e8c34789f1 video: hgafb: correctly handle card detect failure during probe
commit 02625c9652 upstream.

The return value of hga_card_detect() is not properly handled causing
the probe to succeed even though hga_card_detect() failed. Since probe
succeeds, hgafb_open() can be called which will end up operating on an
unmapped hga_vram. This results in an out-of-bounds access as reported
by kernel test robot [1].

To fix this, correctly detect failure of hga_card_detect() by checking
for a non-zero error code.

[1]: https://lore.kernel.org/lkml/20210516150019.GB25903@xsang-OptiPlex-9020/

Fixes: dc13cac486 ("video: hgafb: fix potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Reported-by: kernel test robot <oliver.sang@intel.com>
Reviewed-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210516192714.25823-1-mail@anirudhrb.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Hou Pu
ed9fdd4c6f nvmet: use new ana_log_size instead the old one
commit e181811bd0 upstream.

The new ana_log_size should be used instead of the old one.
Or kernel NULL pointer dereference will happen like below:

[   38.957849][   T69] BUG: kernel NULL pointer dereference, address: 000000000000003c
[   38.975550][   T69] #PF: supervisor write access in kernel mode
[   38.975955][   T69] #PF: error_code(0x0002) - not-present page
[   38.976905][   T69] PGD 0 P4D 0
[   38.979388][   T69] Oops: 0002 [#1] SMP NOPTI
[   38.980488][   T69] CPU: 0 PID: 69 Comm: kworker/0:2 Not tainted 5.12.0+ #54
[   38.981254][   T69] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[   38.982502][   T69] Workqueue: events nvme_loop_execute_work
[   38.985219][   T69] RIP: 0010:memcpy_orig+0x68/0x10f
[   38.986203][   T69] Code: 83 c2 20 eb 44 48 01 d6 48 01 d7 48 83 ea 20 0f 1f 00 48 83 ea 20 4c 8b 46 f8 4c 8b 4e f0 4c 8b 56 e8 4c 8b 5e e0 48 8d 76 e0 <4c> 89 47 f8 4c 89 4f f0 4c 89 57 e8 4c 89 5f e0 48 8d 7f e0 73 d2
[   38.987677][   T69] RSP: 0018:ffffc900001b7d48 EFLAGS: 00000287
[   38.987996][   T69] RAX: 0000000000000020 RBX: 0000000000000024 RCX: 0000000000000010
[   38.988327][   T69] RDX: ffffffffffffffe4 RSI: ffff8881084bc004 RDI: 0000000000000044
[   38.988620][   T69] RBP: 0000000000000024 R08: 0000000100000000 R09: 0000000000000000
[   38.988991][   T69] R10: 0000000100000000 R11: 0000000000000001 R12: 0000000000000024
[   38.989289][   T69] R13: ffff8881084bc000 R14: 0000000000000000 R15: 0000000000000024
[   38.989845][   T69] FS:  0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
[   38.990234][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.990490][   T69] CR2: 000000000000003c CR3: 00000001085b2000 CR4: 00000000000006f0
[   38.991105][   T69] Call Trace:
[   38.994157][   T69]  sg_copy_buffer+0xb8/0xf0
[   38.995357][   T69]  nvmet_copy_to_sgl+0x48/0x6d
[   38.995565][   T69]  nvmet_execute_get_log_page_ana+0xd4/0x1cb
[   38.995792][   T69]  nvmet_execute_get_log_page+0xc9/0x146
[   38.995992][   T69]  nvme_loop_execute_work+0x3e/0x44
[   38.996181][   T69]  process_one_work+0x1c3/0x3c0
[   38.996393][   T69]  worker_thread+0x44/0x3d0
[   38.996600][   T69]  ? cancel_delayed_work+0x90/0x90
[   38.996804][   T69]  kthread+0xf7/0x130
[   38.996961][   T69]  ? kthread_create_worker_on_cpu+0x70/0x70
[   38.997171][   T69]  ret_from_fork+0x22/0x30
[   38.997705][   T69] Modules linked in:
[   38.998741][   T69] CR2: 000000000000003c
[   39.000104][   T69] ---[ end trace e719927b609d0fa0 ]---

Fixes: 5e1f689913 ("nvme-multipath: fix double initialization of ANA state")
Signed-off-by: Hou Pu <houpu.main@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Joerg Roedel
d28aa3c157 x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path
commit fef81c8626 upstream.

Check whether the hypervisor reported the correct C-bit when running
as an SEV guest. Using a wrong C-bit position could be used to leak
sensitive data from the guest to the hypervisor.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210312123824.306-8-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Francois Gervais
0296c9057a rtc: pcf85063: fallback to parent of_node
commit 03531606ef upstream.

The rtc device node is always NULL.

Since v5.12-rc1-dontuse/3c9ea42802a1fbf7ef29660ff8c6e526c58114f6 this
will lead to a NULL pointer dereference.

To fix this use the parent node which is the i2c client node as set by
devm_rtc_allocate_device().

Using the i2c client node seems to be what other similar drivers do
e.g. rtc-pcf8563.c.

Signed-off-by: Francois Gervais <fgervais@distech-controls.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210310211026.27299-1-fgervais@distech-controls.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Christoph Hellwig
7b994b03f1 nvme-multipath: fix double initialization of ANA state
commit 5e1f689913 upstream.

nvme_init_identify and thus nvme_mpath_init can be called multiple
times and thus must not overwrite potentially initialized or in-use
fields.  Split out a helper for the basic initialization when the
controller is initialized and make sure the init_identify path does
not blindly change in-use data structures.

Fixes: 0d0b660f21 ("nvme: add ANA support")
Reported-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Jan Beulich
e2c26ddd4e x86/Xen: swap NX determination and GDT setup on BSP
commit ae897fda4f upstream.

xen_setup_gdt(), via xen_load_gdt_boot(), wants to adjust page tables.
For this to work when NX is not available, x86_configure_nx() needs to
be called first.

[jgross] Note that this is a revert of 36104cb901 ("x86/xen:
Delay get_cpu_cap until stack canary is established"), which is possible
now that we no longer support running as PV guest in 32-bit mode.

Cc: <stable.vger.kernel.org> # 5.9
Fixes: 36104cb901 ("x86/xen: Delay get_cpu_cap until stack canary is established")
Reported-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Link: https://lore.kernel.org/r/12a866b0-9e89-59f7-ebeb-a2a6cec0987a@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2021-05-26 12:06:57 +02:00
Mike Rapoport
d5c4605e9e openrisc: mm/init.c: remove unused memblock_region variable in map_ram()
commit 4eff124347 upstream.

Kernel test robot reports:

cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

>> arch/openrisc/mm/init.c:125:10: warning: Uninitialized variable: region [uninitvar]
            region->base, region->base + region->size);
            ^

Replace usage of memblock_region fields with 'start' and 'end' variables
that are initialized in for_each_mem_range() and remove the declaration of
region.

Fixes: b10d6bca87 ("arch, drivers: replace for_each_membock() with for_each_mem_range()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Simon Rettberg
585d8425e5 drm/i915/gt: Disable HiZ Raw Stall Optimization on broken gen7
commit 023dfa9602 upstream.

When resetting CACHE_MODE registers, don't enable HiZ Raw Stall
Optimization on Ivybridge GT1 and Baytrail, as it causes severe glitches
when rendering any kind of 3D accelerated content.
This optimization is disabled on these platforms by default according to
official documentation from 01.org.

Fixes: ef99a60ffd ("drm/i915/gt: Clear CACHE_MODE prior to clearing residuals")
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3081
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3404
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3071
Reviewed-by: Manuel Bentele <development@manuel-bentele.de>
Signed-off-by: Simon Rettberg <simon.rettberg@rz.uni-freiburg.de>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Rodrigo removed invalid Fixes line]
Link: https://patchwork.freedesktop.org/patch/msgid/20210426161124.2b7fd708@dellnichtsogutkiste
(cherry picked from commit 929b734ad3)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:57 +02:00
Tetsuo Handa
eb46907f99 tty: vt: always invoke vc->vc_sw->con_resize callback
commit ffb324e6f8 upstream.

syzbot is reporting OOB write at vga16fb_imageblit() [1], for
resize_screen() from ioctl(VT_RESIZE) returns 0 without checking whether
requested rows/columns fit the amount of memory reserved for the graphical
screen if current mode is KD_GRAPHICS.

----------
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <fcntl.h>
  #include <sys/ioctl.h>
  #include <linux/kd.h>
  #include <linux/vt.h>

  int main(int argc, char *argv[])
  {
        const int fd = open("/dev/char/4:1", O_RDWR);
        struct vt_sizes vt = { 0x4100, 2 };

        ioctl(fd, KDSETMODE, KD_GRAPHICS);
        ioctl(fd, VT_RESIZE, &vt);
        ioctl(fd, KDSETMODE, KD_TEXT);
        return 0;
  }
----------

Allow framebuffer drivers to return -EINVAL, by moving vc->vc_mode !=
KD_GRAPHICS check from resize_screen() to fbcon_resize().

Link: https://syzkaller.appspot.com/bug?extid=1f29e126cf461c4de3b3 [1]
Reported-by: syzbot <syzbot+1f29e126cf461c4de3b3@syzkaller.appspotmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+1f29e126cf461c4de3b3@syzkaller.appspotmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Maciej W. Rozycki
a14ca25d4f vt: Fix character height handling with VT_RESIZEX
commit 860dafa902 upstream.

Restore the original intent of the VT_RESIZEX ioctl's `v_clin' parameter
which is the number of pixel rows per character (cell) rather than the
height of the font used.

For framebuffer devices the two values are always the same, because the
former is inferred from the latter one.  For VGA used as a true text
mode device these two parameters are independent from each other: the
number of pixel rows per character is set in the CRT controller, while
font height is in fact hardwired to 32 pixel rows and fonts of heights
below that value are handled by padding their data with blanks when
loaded to hardware for use by the character generator.  One can change
the setting in the CRT controller and it will update the screen contents
accordingly regardless of the font loaded.

The `v_clin' parameter is used by the `vgacon' driver to set the height
of the character cell and then the cursor position within.  Make the
parameter explicit then, by defining a new `vc_cell_height' struct
member of `vc_data', set it instead of `vc_font.height' from `v_clin' in
the VT_RESIZEX ioctl, and then use it throughout the `vgacon' driver
except where actual font data is accessed which as noted above is
independent from the CRTC setting.

This way the framebuffer console driver is free to ignore the `v_clin'
parameter as irrelevant, as it always should have, avoiding any issues
attempts to give the parameter a meaning there could have caused, such
as one that has led to commit 988d076336 ("vt_ioctl: make VT_RESIZEX
behave like VT_RESIZE"):

 "syzbot is reporting UAF/OOB read at bit_putcs()/soft_cursor() [1][2],
  for vt_resizex() from ioctl(VT_RESIZEX) allows setting font height
  larger than actual font height calculated by con_font_set() from
  ioctl(PIO_FONT). Since fbcon_set_font() from con_font_set() allocates
  minimal amount of memory based on actual font height calculated by
  con_font_set(), use of vt_resizex() can cause UAF/OOB read for font
  data."

The problem first appeared around Linux 2.5.66 which predates our repo
history, but the origin could be identified with the old MIPS/Linux repo
also at: <git://git.kernel.org/pub/scm/linux/kernel/git/ralf/linux.git>
as commit 9736a3546de7 ("Merge with Linux 2.5.66."), where VT_RESIZEX
code in `vt_ioctl' was updated as follows:

 		if (clin)
-			video_font_height = clin;
+			vc->vc_font.height = clin;

making the parameter apply to framebuffer devices as well, perhaps due
to the use of "font" in the name of the original `video_font_height'
variable.  Use "cell" in the new struct member then to avoid ambiguity.

References:

[1] https://syzkaller.appspot.com/bug?id=32577e96d88447ded2d3b76d71254fb855245837
[2] https://syzkaller.appspot.com/bug?id=6b8355d27b2b94fb5cedf4655e3a59162d9e48e3

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Maciej W. Rozycki
8026eb8242 vt_ioctl: Revert VT_RESIZEX parameter handling removal
commit a90c275eb1 upstream.

Revert the removal of code handling extra VT_RESIZEX ioctl's parameters
beyond those that VT_RESIZE supports, fixing a functional regression
causing `svgatextmode' not to resize the VT anymore.

As a consequence of the reverted change when the video adapter is
reprogrammed from the original say 80x25 text mode using a 9x16
character cell (720x400 pixel resolution) to say 80x37 text mode and the
same character cell (720x592 pixel resolution), the VT geometry does not
get updated and only upper two thirds of the screen are used for the VT,
and the lower part remains blank.  The proportions change according to
text mode geometries chosen.

Revert the change verbatim then, bringing back previous VT resizing.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 988d076336 ("vt_ioctl: make VT_RESIZEX behave like VT_RESIZE")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Maciej W. Rozycki
a3de46844f vgacon: Record video mode changes with VT_RESIZEX
commit d4d0ad57b3 upstream.

Fix an issue with VGA console font size changes made after the initial
video text mode has been changed with a user tool like `svgatextmode'
calling the VT_RESIZEX ioctl.  As it stands in that case the original
screen geometry continues being used to validate further VT resizing.

Consequently when the video adapter is firstly reprogrammed from the
original say 80x25 text mode using a 9x16 character cell (720x400 pixel
resolution) to say 80x37 text mode and the same character cell (720x592
pixel resolution), and secondly the CRTC character cell updated to 9x8
(by loading a suitable font with the KD_FONT_OP_SET request of the
KDFONTOP ioctl), the VT geometry does not get further updated from 80x37
and only upper half of the screen is used for the VT, with the lower
half showing rubbish corresponding to whatever happens to be there in
the video memory that maps to that part of the screen.  Of course the
proportions change according to text mode geometries and font sizes
chosen.

Address the problem then, by updating the text mode geometry defaults
rather than checking against them whenever the VT is resized via a user
ioctl.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: e400b6ec4e ("vt/vgacon: Check if screen resize request comes from userspace")
Cc: stable@vger.kernel.org # v2.6.24+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Igor Matheus Andrade Torrente
8e0d302e7e video: hgafb: fix potential NULL pointer dereference
commit dc13cac486 upstream.

The return of ioremap if not checked, and can lead to a NULL to be
assigned to hga_vram. Potentially leading to a NULL pointer
dereference.

The fix adds code to deal with this case in the error label and
changes how the hgafb_probe handles the return of hga_card_detect.

Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-40-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Tom Seewald
98404acf0a qlcnic: Add null check after calling netdev_alloc_skb
commit 84460f01cb upstream.

The function qlcnic_dl_lb_test() currently calls netdev_alloc_skb()
without checking afterwards that the allocation succeeded. Fix this by
checking if the skb is NULL and returning an error in such a case.
Breaking out of the loop if the skb is NULL is not correct as no error
would be reported to the caller and no message would be printed for the
user.

Cc: David S. Miller <davem@davemloft.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Tom Seewald <tseewald@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-26-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Phillip Potter
865ec95a77 leds: lp5523: check return value of lp5xx_read and jump to cleanup code
commit 6647f7a06e upstream.

Check return value of lp5xx_read and if non-zero, jump to code at end of
the function, causing lp5523_stop_all_engines to be executed before
returning the error value up the call chain. This fixes the original
commit (248b57015f) which was reverted due to the University of Minnesota
problems.

Cc: stable <stable@vger.kernel.org>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210503115736.2104747-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Darrick J. Wong
33a9ff900b ics932s401: fix broken handling of errors when word reading fails
commit a73b6a3b41 upstream.

In commit b05ae01fdb, someone tried to make the driver handle i2c read
errors by simply zeroing out the register contents, but for some reason
left unaltered the code that sets the cached register value the function
call return value.

The original patch was authored by a member of the Underhanded
Mangle-happy Nerds, I'm not terribly surprised.  I don't have the
hardware anymore so I can't test this, but it seems like a pretty
obvious API usage fix to me...

Fixes: b05ae01fdb ("misc/ics932s401: Add a missing check to i2c_smbus_read_word_data")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20210428222534.GJ3122264@magnolia
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Greg Kroah-Hartman
e81f94a71b net: rtlwifi: properly check for alloc_workqueue() failure
commit 30b0e0ee9d upstream.

If alloc_workqueue() fails, properly catch this and propagate the error
to the calling functions, so that the devuce initialization will
properly error out.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Phillip Potter
f9f59f4ca2 scsi: ufs: handle cleanup correctly on devm_reset_control_get error
commit 2f4a784f40 upstream.

Move ufshcd_set_variant call in ufs_hisi_init_common to common error
section at end of the function, and then jump to this from the error
checking statements for both devm_reset_control_get and
ufs_hisi_get_resource. This fixes the original commit (63a06181d7)
which was reverted due to the University of Minnesota problems.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210503115736.2104747-32-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Anirudh Rayabharam
0eb496c3c1 net: stmicro: handle clk_prepare() failure during init
commit 0c32a96d00 upstream.

In case clk_prepare() fails, capture and propagate the error code up the
stack. If regulator_enable() was called earlier, properly unwind it by
calling regulator_disable().

Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-22-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Du Cheng
c89c9a2911 ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read()
commit e6e337708c upstream.

niu_pci_eeprom_read() may fail, so add checks to its return value and
propagate the error up the callstack.

An examination of the callstack up to niu_pci_eeprom_read shows that:

niu_pci_eeprom_read() // returns int
    niu_pci_vpd_scan_props() // returns int
        niu_pci_vpd_fetch() // returns *void*
            niu_get_invariants() // returns int

since niu_pci_vpd_fetch() returns void which breaks the bubbling up,
change its return type to int so that error is propagated upwards.

Signed-off-by: Du Cheng <ducheng2@gmail.com>
Cc: Shannon Nelson <shannon.lee.nelson@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-24-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
17e22164d6 Revert "niu: fix missing checks of niu_pci_eeprom_read"
commit 7930742d6a upstream.

This reverts commit 26fd962bde.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The change here was incorrect.  While it is nice to check if
niu_pci_eeprom_read() succeeded or not when using the data, any error
that might have happened was not propagated upwards properly, causing
the kernel to assume that these reads were successful, which results in
invalid data in the buffer that was to contain the successfully read
data.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Shannon Nelson <shannon.lee.nelson@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Fixes: 26fd962bde ("niu: fix missing checks of niu_pci_eeprom_read")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-23-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
c794f7851c Revert "qlcnic: Avoid potential NULL pointer dereference"
commit b95b57dfe7 upstream.

This reverts commit 5bf7295fe3.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

This commit does not properly detect if an error happens because the
logic after this loop will not detect that there was a failed
allocation.

Cc: Aditya Pakki <pakki001@umn.edu>
Cc: David S. Miller <davem@davemloft.net>
Fixes: 5bf7295fe3 ("qlcnic: Avoid potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-25-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
5e4fd74089 Revert "rtlwifi: fix a potential NULL pointer dereference"
commit 68c5634c4a upstream.

This reverts commit 765976285a.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

This commit is not correct, it should not have used unlikely() and is
not propagating the error properly to the calling function, so it should
be reverted at this point in time.  Also, if the check failed, the
work queue was still assumed to be allocated, so further accesses would
have continued to fail, meaning this patch does nothing to solve the
root issues at all.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Fixes: 765976285a ("rtlwifi: fix a potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-13-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
951ed241e2 Revert "media: rcar_drif: fix a memory disclosure"
commit 3e465fc384 upstream.

This reverts commit d39083234c.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, it was determined that this commit is not needed at all as
the media core already prevents memory disclosure on this codepath, so
just drop the extra memset happening here.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Fixes: d39083234c ("media: rcar_drif: fix a memory disclosure")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
5660864095 cdrom: gdrom: initialize global variable at init time
commit 9183f01b5e upstream.

As Peter points out, if we were to disconnect and then reconnect this
driver from a device, the "global" state of the device would contain odd
values and could cause problems.  Fix this up by just initializing the
whole thing to 0 at probe() time.

Ideally this would be a per-device variable, but given the age and the
total lack of users of it, that would require a lot of s/./->/g changes
for really no good reason.

Reported-by: Peter Rosin <peda@axentia.se>
Cc: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/YJP2j6AU82MqEY2M@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Atul Gopinathan
9285808072 cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
commit d03d1021da upstream.

The fields, "toc" and "cd_info", of "struct gdrom_unit gd" are allocated
in "probe_gdrom()". Prevent a memory leak by making sure "gd.cd_info" is
deallocated in the "remove_gdrom()" function.

Also prevent double free of the field "gd.toc" by moving it from the
module's exit function to "remove_gdrom()". This is because, in
"probe_gdrom()", the function makes sure to deallocate "gd.toc" in case
of any errors, so the exit function invoked later would again free
"gd.toc".

The patch also maintains consistency by deallocating the above mentioned
fields in "remove_gdrom()" along with another memory allocated field
"gd.disk".

Suggested-by: Jens Axboe <axboe@kernel.dk>
Cc: Peter Rosin <peda@axentia.se>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Atul Gopinathan <atulgopinathan@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-28-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
3d2a4fb911 Revert "gdrom: fix a memory leak bug"
commit 257343d3ed upstream.

This reverts commit 093c48213e.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

Because of this, all submissions from this group must be reverted from
the kernel tree and will need to be re-reviewed again to determine if
they actually are a valid fix.  Until that work is complete, remove this
change to ensure that no problems are being introduced into the
codebase.

Cc: Wenwen Wang <wang6495@umn.edu>
Cc: Peter Rosin <peda@axentia.se>
Cc: Jens Axboe <axboe@kernel.dk>
Fixes: 093c48213e ("gdrom: fix a memory leak bug")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-27-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
64ae556541 Revert "scsi: ufs: fix a missing check of devm_reset_control_get"
commit 4d427b408c upstream.

This reverts commit 63a06181d7.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit is incorrect, it does not properly clean up on the
error path, so I'll keep the revert and fix it up properly with a
follow-on patch.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Fixes: 63a06181d7 ("scsi: ufs: fix a missing check of devm_reset_control_get")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-31-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
61b9bc3091 Revert "ecryptfs: replace BUG_ON with error handling code"
commit e1436df2f2 upstream.

This reverts commit 2c2a7552dd.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit log for this change was incorrect, no "error
handling code" was added, things will blow up just as badly as before if
any of these cases ever were true.  As this BUG_ON() never fired, and
most of these checks are "obviously" never going to be true, let's just
revert to the original code for now until this gets unwound to be done
correctly in the future.

Cc: Aditya Pakki <pakki001@umn.edu>
Fixes: 2c2a7552dd ("ecryptfs: replace BUG_ON with error handling code")
Cc: stable <stable@vger.kernel.org>
Acked-by: Tyler Hicks <code@tyhicks.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-49-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Greg Kroah-Hartman
6003d373bf Revert "video: imsttfb: fix potential NULL pointer dereferences"
commit ed04fe8a0e upstream.

This reverts commit 1d84353d20.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit here, while technically correct, did not fully
handle all of the reported issues that the commit stated it was fixing,
so revert it until it can be "fixed" fully.

Note, ioremap() probably will never fail for old hardware like this, and
if anyone actually used this hardware (a PowerMac era PCI display card),
they would not be using fbdev anymore.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Fixes: 1d84353d20 ("video: imsttfb: fix potential NULL pointer dereferences")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-67-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00
Greg Kroah-Hartman
4baaa4946d Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
commit 99ae341767 upstream.

This reverts commit 9aa3aa15f4.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, it was determined that this commit is not needed at all so
just revert it.  Also, the call to lm80_init_client() was not properly
handled, so if error handling is needed in the lm80_probe() function,
then it should be done properly, not half-baked like the commit being
reverted here did.

Cc: Kangjie Lu <kjlu@umn.edu>
Fixes: 9aa3aa15f4 ("hwmon: (lm80) fix a missing check of bus read in lm80 probe")
Cc: stable <stable@vger.kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210503115736.2104747-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00
Greg Kroah-Hartman
03c5d02c38 Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
commit 8d1beda5f1 upstream.

This reverts commit 248b57015f.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit does not properly unwind if there is an error
condition so it needs to be reverted at this point in time.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: stable <stable@vger.kernel.org>
Fixes: 248b57015f ("leds: lp5523: fix a missing check of return value of lp55xx_read")
Link: https://lore.kernel.org/r/20210503115736.2104747-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00
Greg Kroah-Hartman
059031afcd Revert "net: stmicro: fix a missing check of clk_prepare"
commit bee1b05118 upstream.

This reverts commit f86a3b8383.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit causes a memory leak when it is trying to claim it
is properly handling errors.  Revert this change and fix it up properly
in a follow-on commit.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: David S. Miller <davem@davemloft.net>
Fixes: f86a3b8383 ("net: stmicro: fix a missing check of clk_prepare")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-21-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00
Greg Kroah-Hartman
d88f05cece Revert "video: hgafb: fix potential NULL pointer dereference"
commit 58c0cc2d90 upstream.

This reverts commit ec7f6aad57.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

This patch "looks" correct, but the driver keeps on running and will
fail horribly right afterward if this error condition ever trips.

So points for trying to resolve an issue, but a huge NEGATIVE value for
providing a "fake" fix for the problem as nothing actually got resolved
at all.  I'll go fix this up properly...

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fixes: ec7f6aad57 ("video: hgafb: fix potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-39-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00
Arnd Bergmann
fae4f4debf kcsan: Fix debugfs initcall return type
commit 976aac5f88 upstream.

clang with CONFIG_LTO_CLANG points out that an initcall function should
return an 'int' due to the changes made to the initcall macros in commit
3578ad11f3 ("init: lto: fix PREL32 relocations"):

kernel/kcsan/debugfs.c:274:15: error: returning 'void' from a function with incompatible result type 'int'
late_initcall(kcsan_debugfs_init);
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
include/linux/init.h:292:46: note: expanded from macro 'late_initcall'
 #define late_initcall(fn)               __define_initcall(fn, 7)

Fixes: e36299efe7 ("kcsan, debugfs: Move debugfs file creation out of early init")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:54 +02:00