Commit Graph

1142818 Commits

Author SHA1 Message Date
Hangbin Liu
5d241eb8a1 selftests: nft_nat: ensuring the listening side is up before starting the client
[ Upstream commit 2067e7a00a ]

The test_local_dnat_portonly() function initiates the client-side as
soon as it sets the listening side to the background. This could lead to
a race condition where the server may not be ready to listen. To ensure
that the server-side is up and running before initiating the
client-side, a delay is introduced to the test_local_dnat_portonly()
function.

Before the fix:
  # ./nft_nat.sh
  PASS: netns routing/connectivity: ns0-rthlYrBU can reach ns1-rthlYrBU and ns2-rthlYrBU
  PASS: ping to ns1-rthlYrBU was ip NATted to ns2-rthlYrBU
  PASS: ping to ns1-rthlYrBU OK after ip nat output chain flush
  PASS: ipv6 ping to ns1-rthlYrBU was ip6 NATted to ns2-rthlYrBU
  2023/02/27 04:11:03 socat[6055] E connect(5, AF=2 10.0.1.99:2000, 16): Connection refused
  ERROR: inet port rewrite

After the fix:
  # ./nft_nat.sh
  PASS: netns routing/connectivity: ns0-9sPJV6JJ can reach ns1-9sPJV6JJ and ns2-9sPJV6JJ
  PASS: ping to ns1-9sPJV6JJ was ip NATted to ns2-9sPJV6JJ
  PASS: ping to ns1-9sPJV6JJ OK after ip nat output chain flush
  PASS: ipv6 ping to ns1-9sPJV6JJ was ip6 NATted to ns2-9sPJV6JJ
  PASS: inet port rewrite without l3 address

Fixes: 282e5f8fe9 ("netfilter: nat: really support inet nat without l3 address")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:23 +01:00
Horatiu Vultur
6fac771473 net: lan966x: Fix port police support using tc-matchall
[ Upstream commit 81563d8548 ]

When the police was removed from the port, then it was trying to
remove the police from the police id and not from the actual
police index.
The police id represents the id of the police and police index
represents the position in HW where the police is situated.
The port police id can be any number while the port police index
is a number based on the port chip port.
Fix this by deleting the police from HW that is situated at the
police index and not police id.

Fixes: 5390334b59 ("net: lan966x: Add port police support using tc-matchall")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:23 +01:00
Eric Dumazet
25b54f247e ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping()
[ Upstream commit 693aa2c0d9 ]

ila_xlat_nl_cmd_get_mapping() generates an empty skb,
triggerring a recent sanity check [1].

Instead, return an error code, so that user space
can get it.

[1]
skb_assert_len
WARNING: CPU: 0 PID: 5923 at include/linux/skbuff.h:2527 skb_assert_len include/linux/skbuff.h:2527 [inline]
WARNING: CPU: 0 PID: 5923 at include/linux/skbuff.h:2527 __dev_queue_xmit+0x1bc0/0x3488 net/core/dev.c:4156
Modules linked in:
CPU: 0 PID: 5923 Comm: syz-executor269 Not tainted 6.2.0-syzkaller-18300-g2ebd1fbb946d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : skb_assert_len include/linux/skbuff.h:2527 [inline]
pc : __dev_queue_xmit+0x1bc0/0x3488 net/core/dev.c:4156
lr : skb_assert_len include/linux/skbuff.h:2527 [inline]
lr : __dev_queue_xmit+0x1bc0/0x3488 net/core/dev.c:4156
sp : ffff80001e0d6c40
x29: ffff80001e0d6e60 x28: dfff800000000000 x27: ffff0000c86328c0
x26: dfff800000000000 x25: ffff0000c8632990 x24: ffff0000c8632a00
x23: 0000000000000000 x22: 1fffe000190c6542 x21: ffff0000c8632a10
x20: ffff0000c8632a00 x19: ffff80001856e000 x18: ffff80001e0d5fc0
x17: 0000000000000000 x16: ffff80001235d16c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff80800008353a30 x10: 0000000000000000 x9 : 21567eaf25bfb600
x8 : 21567eaf25bfb600 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001e0d6558 x4 : ffff800015c74760 x3 : ffff800008596744
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000000e
Call trace:
skb_assert_len include/linux/skbuff.h:2527 [inline]
__dev_queue_xmit+0x1bc0/0x3488 net/core/dev.c:4156
dev_queue_xmit include/linux/netdevice.h:3033 [inline]
__netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline]
__netlink_deliver_tap+0x45c/0x6f8 net/netlink/af_netlink.c:325
netlink_deliver_tap+0xf4/0x174 net/netlink/af_netlink.c:338
__netlink_sendskb net/netlink/af_netlink.c:1283 [inline]
netlink_sendskb+0x6c/0x154 net/netlink/af_netlink.c:1292
netlink_unicast+0x334/0x8d4 net/netlink/af_netlink.c:1380
nlmsg_unicast include/net/netlink.h:1099 [inline]
genlmsg_unicast include/net/genetlink.h:433 [inline]
genlmsg_reply include/net/genetlink.h:443 [inline]
ila_xlat_nl_cmd_get_mapping+0x620/0x7d0 net/ipv6/ila/ila_xlat.c:493
genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]
genl_rcv_msg+0x938/0xc1c net/netlink/genetlink.c:1065
netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2574
genl_rcv+0x38/0x50 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x660/0x8d4 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x800/0xae0 net/netlink/af_netlink.c:1942
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0x558/0x844 net/socket.c:2479
___sys_sendmsg net/socket.c:2533 [inline]
__sys_sendmsg+0x26c/0x33c net/socket.c:2562
__do_sys_sendmsg net/socket.c:2571 [inline]
__se_sys_sendmsg net/socket.c:2569 [inline]
__arm64_sys_sendmsg+0x80/0x94 net/socket.c:2569
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 136484
hardirqs last enabled at (136483): [<ffff800008350244>] __up_console_sem+0x60/0xb4 kernel/printk/printk.c:345
hardirqs last disabled at (136484): [<ffff800012358d60>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (136418): [<ffff800008020ea8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (136418): [<ffff800008020ea8>] __do_softirq+0xd4c/0xfa4 kernel/softirq.c:600
softirqs last disabled at (136371): [<ffff80000802b4a4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
skb len=0 headroom=0 headlen=0 tailroom=192
mac=(0,0) net=(0,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0010 pkttype=6 iif=0
dev name=nlmon0 feat=0x0000000000005861

Fixes: 7f00feaf10 ("ila: Add generic ILA translation facility")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:23 +01:00
Dmitry Baryshkov
78891a3c1e drm/msm/dpu: disable features unsupported by QCM2290
[ Upstream commit a2a448b4d9 ]

QCM2290 doesn't seem to support reg-dma, UBWC and CSC. Drop
corresponding features being incorrectly enabled for qcm2290.

Cc: Loic Poulain <loic.poulain@linaro.org>
Fixes: 5334087ee7 ("drm/msm: add support for QCM2290 MDSS")
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522209/
Link: https://lore.kernel.org/r/20230211231259.1308718-3-dmitry.baryshkov@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:23 +01:00
Jakub Kicinski
a3a087edd0 tls: rx: fix return value for async crypto
[ Upstream commit 4d42cd6bc2 ]

Gaurav reports that TLS Rx is broken with async crypto
accelerators. The commit under fixes missed updating
the retval byte counting logic when updating how records
are stored. Even tho both before and after the change
'decrypted' was updated inside the main loop, it was
completely overwritten when processing the async
completions. Now that the rx_list only holds
non-zero-copy records we need to add, not overwrite.

Reported-and-bisected-by: Gaurav Jain <gaurav.jain@nxp.com>
Fixes: cbbdee9918 ("tls: rx: async: don't put async zc on the list")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217064
Tested-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230227181201.1793772-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Vladimir Oltean
a7e0439c25 powerpc: dts: t1040rdb: fix compatible string for Rev A boards
[ Upstream commit ae44f1c9d1 ]

It looks like U-Boot fails to start the kernel properly when the
compatible string of the board isn't fsl,T1040RDB, so stop overriding it
from the rev-a.dts.

Fixes: 5ebb747492 ("powerpc: dts: t1040rdb: fix ports names for Seville Ethernet switch")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Kang Chen
ce93f1afc0 nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties
[ Upstream commit 11f180a5d6 ]

devm_kmalloc_array may fails, *fw_vsc_cfg might be null and cause
out-of-bounds write in device_property_read_u8_array later.

Fixes: a06347c04c ("NFC: Add Intel Fields Peak NFC solution driver")
Signed-off-by: Kang Chen <void0red@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230227093037.907654-1-void0red@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Rafał Miłecki
3ee0c9fb7f bgmac: fix *initial* chip reset to support BCM5358
[ Upstream commit f99e6d7c4e ]

While bringing hardware up we should perform a full reset including the
switch bit (BGMAC_BCMA_IOCTL_SW_RESET aka SICF_SWRST). It's what
specification says and what reference driver does.

This seems to be critical for the BCM5358. Without this hardware doesn't
get initialized properly and doesn't seem to transmit or receive any
packets.

Originally bgmac was calling bgmac_chip_reset() before setting
"has_robosw" property which resulted in expected behaviour. That has
changed as a side effect of adding platform device support which
regressed BCM5358 support.

Fixes: f6a95a2495 ("net: ethernet: bgmac: Add platform device support")
Cc: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230227091156.19509-1-zajec5@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Dmitry Baryshkov
56d67b9788 drm/msm/a5xx: fix context faults during ring switch
[ Upstream commit 32e7083429 ]

The rptr_addr is set in the preempt_init_ring(), which is called from
a5xx_gpu_init(). It uses shadowptr() to set the address, however the
shadow_iova is not yet initialized at that time. Move the rptr_addr
setting to the a5xx_preempt_hw_init() which is called after setting the
shadow_iova, getting the correct value for the address.

Fixes: 8907afb476 ("drm/msm: Allow a5xx to mark the RPTR shadow as privileged")
Suggested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522640/
Link: https://lore.kernel.org/r/20230214020956.164473-5-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Dmitry Baryshkov
ac3af300a2 drm/msm/a5xx: fix the emptyness check in the preempt code
[ Upstream commit b4fb748f0b ]

Quoting Yassine: ring->memptrs->rptr is never updated and stays 0, so
the comparison always evaluates to false and get_next_ring always
returns ring 0 thinking it isn't empty.

Fix this by calling get_rptr() instead of reading rptr directly.

Reported-by: Yassine Oudjana <y.oudjana@protonmail.com>
Fixes: b1fc2839d2 ("drm/msm: Implement preemption for A5XX targets")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522642/
Link: https://lore.kernel.org/r/20230214020956.164473-4-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Dmitry Baryshkov
84053e7dc4 drm/msm/a5xx: fix highest bank bit for a530
[ Upstream commit 141f66ebbf ]

A530 has highest bank bit equal to 15 (like A540). Fix values written to
REG_A5XX_RB_MODE_CNTL and REG_A5XX_TPL1_MODE_CNTL registers.

Fixes: 1d832ab30c ("drm/msm/a5xx: Add support for Adreno 508, 509, 512 GPUs")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522639/
Link: https://lore.kernel.org/r/20230214020956.164473-3-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Dmitry Baryshkov
d334248d19 drm/msm/a5xx: fix setting of the CP_PREEMPT_ENABLE_LOCAL register
[ Upstream commit a7a4c19c36 ]

Rather than writing CP_PREEMPT_ENABLE_GLOBAL twice, follow the vendor
kernel and set CP_PREEMPT_ENABLE_LOCAL register instead. a5xx_submit()
will override it during submission, but let's get the sequence correct.

Fixes: b1fc2839d2 ("drm/msm: Implement preemption for A5XX targets")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/522638/
Link: https://lore.kernel.org/r/20230214020956.164473-2-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:22 +01:00
Rob Clark
fa73f67ac0 drm/msm: Fix potential invalid ptr free
[ Upstream commit 8a86f213f4 ]

The error path cleanup expects that chain and syncobj are either NULL or
valid pointers.  But post_deps was not allocated with __GFP_ZERO.

Fixes: ab723b7a99 ("drm/msm: Add syncobj support.")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Patchwork: https://patchwork.freedesktop.org/patch/523051/
Link: https://lore.kernel.org/r/20230215235048.1166484-1-robdclark@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Jiri Slaby (SUSE)
5dca696143 drm/nouveau/kms/nv50: fix nv50_wndw_new_ prototype
[ Upstream commit 3638a820c5 ]

gcc-13 warns about mismatching types for enums. That revealed switched
arguments of nv50_wndw_new_():
  drivers/gpu/drm/nouveau/dispnv50/wndw.c:696:1: error: conflicting types for 'nv50_wndw_new_' due to enum/integer mismatch; have 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, u32,  enum nv50_disp_interlock_type,  u32,  struct nv50_wndw **)'
  drivers/gpu/drm/nouveau/dispnv50/wndw.h:36:5: note: previous declaration of 'nv50_wndw_new_' with type 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, enum nv50_disp_interlock_type,  u32,  u32,  struct nv50_wndw **)'

It can be barely visible, but the declaration says about the parameters
in the middle:
  enum nv50_disp_interlock_type,
  u32 interlock_data,
  u32 heads,

While the definition states differently:
  u32 heads,
  enum nv50_disp_interlock_type interlock_type,
  u32 interlock_data,

Unify/fix the declaration to match the definition.

Fixes: 53e0a3e70d ("drm/nouveau/kms/nv50-: simplify tracking of channel interlocks")
Cc: Martin Liska <mliska@suse.cz>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221031114229.10289-1-jirislaby@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Paulo Alcantara
512aa2fd8c cifs: improve checking of DFS links over STATUS_OBJECT_NAME_INVALID
[ Upstream commit b9ee2e307c ]

Do not map STATUS_OBJECT_NAME_INVALID to -EREMOTE under non-DFS
shares, or 'nodfs' mounts or CONFIG_CIFS_DFS_UPCALL=n builds.
Otherwise, in the slow path, get a referral to figure out whether it
is an actual DFS link.

This could be simply reproduced under a non-DFS share by running the
following

  $ mount.cifs //srv/share /mnt -o ...
  $ cat /mnt/$(printf '\U110000')
  cat: '/mnt/'$'\364\220\200\200': Object is remote

Fixes: c877ce47e1 ("cifs: reduce roundtrips on create/qinfo requests")
CC: stable@vger.kernel.org # 6.2
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Jan Kara
b0bb136122 ext4: Fix possible corruption when moving a directory
[ Upstream commit 0813299c58 ]

When we are renaming a directory to a different directory, we need to
update '..' entry in the moved directory. However nothing prevents moved
directory from being modified and even converted from the inline format
to the normal format. When such race happens the rename code gets
confused and we crash. Fix the problem by locking the moved directory.

CC: stable@vger.kernel.org
Fixes: 32f7f22c0b ("ext4: let ext4_rename handle inline dir")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230126112221.11866-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Bart Van Assche
17e98a5ede scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
[ Upstream commit fc663711b9 ]

Remove the /proc/scsi/${proc_name} directory earlier to fix a race
condition between unloading and reloading kernel modules. This fixes a bug
introduced in 2009 by commit 77c019768f ("[SCSI] fix /proc memory leak in
the SCSI core").

Fix the following kernel warning:

proc_dir_entry 'scsi/scsi_debug' already registered
WARNING: CPU: 19 PID: 27986 at fs/proc/generic.c:376 proc_register+0x27d/0x2e0
Call Trace:
 proc_mkdir+0xb5/0xe0
 scsi_proc_hostdir_add+0xb5/0x170
 scsi_host_alloc+0x683/0x6c0
 sdebug_driver_probe+0x6b/0x2d0 [scsi_debug]
 really_probe+0x159/0x540
 __driver_probe_device+0xdc/0x230
 driver_probe_device+0x4f/0x120
 __device_attach_driver+0xef/0x180
 bus_for_each_drv+0xe5/0x130
 __device_attach+0x127/0x290
 device_initial_probe+0x17/0x20
 bus_probe_device+0x110/0x130
 device_add+0x673/0xc80
 device_register+0x1e/0x30
 sdebug_add_host_helper+0x1a7/0x3b0 [scsi_debug]
 scsi_debug_init+0x64f/0x1000 [scsi_debug]
 do_one_initcall+0xd7/0x470
 do_init_module+0xe7/0x330
 load_module+0x122a/0x12c0
 __do_sys_finit_module+0x124/0x1a0
 __x64_sys_finit_module+0x46/0x50
 do_syscall_64+0x38/0x80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Link: https://lore.kernel.org/r/20230210205200.36973-3-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Yi Zhang <yi.zhang@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 77c019768f ("[SCSI] fix /proc memory leak in the SCSI core")
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Liao Chang
0d14555f53 riscv: Add header include guards to insn.h
[ Upstream commit 8ac6e619d9 ]

Add header include guards to insn.h to prevent repeating declaration of
any identifiers in insn.h.

Fixes: edde5584c7 ("riscv: Add SW single-step support for KDB")
Signed-off-by: Liao Chang <liaochang1@huawei.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Fixes: c9c1af3f18 ("RISC-V: rename parse_asm.h to insn.h")
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230129094242.282620-1-liaochang1@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Yu Kuai
82f713e8b8 block: fix scan partition for exclusively open device again
[ Upstream commit e5cfefa97b ]

As explained in commit 36369f46e9 ("block: Do not reread partition table
on exclusively open device"), reread partition on the device that is
exclusively opened by someone else is problematic.

This patch will make sure partition scan will only be proceed if current
thread open the device exclusively, or the device is not opened
exclusively, and in the later case, other scanners and exclusive openers
will be blocked temporarily until partition scan is done.

Fixes: 10c70d95c0 ("block: remove the bd_openers checks in blk_drop_partitions")
Cc: <stable@vger.kernel.org>
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230217022200.3092987-3-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:21 +01:00
Yu Kuai
573e58f5e7 block: Revert "block: Do not reread partition table on exclusively open device"
[ Upstream commit 0f77b29ad1 ]

This reverts commit 36369f46e9.

This patch can't fix the problem in a corner case that device can be
opened exclusively after the checking and before blkdev_get_by_dev().
We'll use a new solution to fix the problem in the next patch, and
the new solution doesn't need to change apis.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230217022200.3092987-2-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: e5cfefa97b ("block: fix scan partition for exclusively open device again")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Ville Syrjälä
783c225e91 drm/i915: Populate encoder->devdata for DSI on icl+
[ Upstream commit 14e591a193 ]

We now have some eDP+DSI dual panel systems floating around
where the DSI panel is the secondary LFP and thus needs to
consult "panel type 2" in VBT in order to locate all the
other panel type dependant stuff correctly.

To that end we need to pass in the devdata to
intel_bios_init_panel_late(), otherwise it'll just assume
we want the primary panel type. So let's try to just populate
the vbt.ports[] stuff and encoder->devdata for icl+ DSI
panels as well.

We can't do this on older platforms as there we risk a DSI
port aliasing with a HDMI/DP port, which is a totally legal
thing as the DSI ports live in their own little parallel
universe.

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8016
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230207064337.18697-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit ba00eb6a4b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Ville Syrjälä
bd61a84b5e drm/i915: Do panel VBT init early if the VBT declares an explicit panel type
[ Upstream commit 3f9ffce576 ]

Lots of ADL machines out there with bogus VBTs that declare
two eDP child devices. In order for those to work we need to
figure out which power sequencer to use before we try the EDID
read. So let's do the panel VBT init early if we can, falling
back to the post-EDID init otherwise.

The post-EDID init panel_type=0xff approach of assuming the
power sequencer should already be enabled doesn't really work
with multiple eDP panels, and currently we just end up using
the same power sequencer for both eDP ports, which at least
confuses the wakeref tracking, and potentially also causes us
to toggle the VDD for the panel when we should not.

Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221125173156.31689-3-ville.syrjala@linux.intel.com
Stable-dep-of: 14e591a193 ("drm/i915: Populate encoder->devdata for DSI on icl+")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Ville Syrjälä
e340197a45 drm/i915: Introduce intel_panel_init_alloc()
[ Upstream commit f70f8153e3 ]

Introduce a place where we can initialize connector->panel
after it's been allocated. We already have a intel_panel_init()
so had to get creative with the name and came up with
intel_panel_init_alloc().

Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221125173156.31689-2-ville.syrjala@linux.intel.com
Stable-dep-of: 14e591a193 ("drm/i915: Populate encoder->devdata for DSI on icl+")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Mika Westerberg
87228e1c18 spi: intel: Check number of chip selects after reading the descriptor
[ Upstream commit 574fbb95cd ]

The flash decriptor contains the number of flash components that we use
to figure out how many flash chips there are connected. Therefore we
need to read it first before deciding how many chip selects the
controller has.

Reported-by: Marcin Witkowski <marcin.witkowski@intel.com>
Fixes: 3f03c618be ("spi: intel: Add support for second flash chip")
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20230215110040.42186-1-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Corey Minyard
9858e0fb32 ipmi:ssif: Add a timer between request retries
[ Upstream commit 00bb7e763e ]

The IPMI spec has a time (T6) specified between request retries.  Add
the handling for that.

Reported by: Tony Camuso <tcamuso@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Corey Minyard
8a676b6eb2 ipmi:ssif: Increase the message retry time
[ Upstream commit 39721d62bb ]

The spec states that the minimum message retry time is 60ms, but it was
set to 20ms.  Correct it.

Reported by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Stable-dep-of: 00bb7e763e ("ipmi:ssif: Add a timer between request retries")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:20 +01:00
Corey Minyard
f12869ff76 ipmi:ssif: Remove rtc_us_timer
[ Upstream commit 9e8b89926f ]

It was cruft left over from older handling of run to completion.

Cc: stable@vger.kernel.org
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Dmitry Torokhov
526a177ac6 Input: exc3000 - properly stop timer on shutdown
[ Upstream commit 79c81d137d ]

We need to stop the timer on driver unbind or probe failures, otherwise
we get UAF/Oops.

Fixes: 7e577a17f2 ("Input: add I2C attached EETI EXC3000 multi touch driver")
Reported-by: "Stahl, Michael" <mstahl@moba.de>
Link: https://lore.kernel.org/r/Y9dK57BFqtlf8NmN@google.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Manivannan Sadhasivam
86e9eb69c0 bus: mhi: ep: Change state_lock to mutex
[ Upstream commit 1ddc761829 ]

state_lock, the spinlock type is meant to protect race against concurrent
MHI state transitions. In mhi_ep_set_m0_state(), while the state_lock is
being held, the channels are resumed in mhi_ep_resume_channels() if the
previous state was M3. This causes sleeping in atomic bug, since
mhi_ep_resume_channels() use mutex internally.

Since the state_lock is supposed to be held throughout the state change,
it is not ideal to drop the lock before calling mhi_ep_resume_channels().
So to fix this issue, let's change the type of state_lock to mutex. This
would also allow holding the lock throughout all state transitions thereby
avoiding any potential race.

Cc: <stable@vger.kernel.org> # 5.19
Fixes: e4b7b5f0f3 ("bus: mhi: ep: Add support for suspending and resuming channels")
Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Manivannan Sadhasivam
b6dc68ac96 bus: mhi: ep: Power up/down MHI stack during MHI RESET
[ Upstream commit 47a1dcaea0 ]

During graceful shutdown scenario, host will issue MHI RESET to the
endpoint device before initiating shutdown. In that case, it makes sense
to completely power down the MHI stack as sooner or later the access to
MMIO registers will be prohibited. Also, the stack needs to be powered
up in the case of SYS_ERR to recover the device.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://lore.kernel.org/r/20221228161704.255268-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Stable-dep-of: 1ddc761829 ("bus: mhi: ep: Change state_lock to mutex")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Jan Kara
9ee18ff099 udf: Fix off-by-one error when discarding preallocation
[ Upstream commit f54aa97fb7 ]

The condition determining whether the preallocation can be used had
an off-by-one error so we didn't discard preallocation when new
allocation was just following it. This can then confuse code in
inode_getblk().

CC: stable@vger.kernel.org
Fixes: 16d0556568 ("udf: Discard preallocation before extending file with a hole")
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Alexander Aring
a926daa8b1 fs: dlm: fix race setting stop tx flag
[ Upstream commit 164272113b ]

This patch sets the stop tx flag before we commit the dlm message.
This flag will report about unexpected transmissions after we
send the DLM_FIN message out, which should be the last message sent.
When we commit the dlm fin message, it could be that we already
got an ack back and the CLOSED state change already happened.
We should not set this flag when we are in CLOSED state. To avoid this
race we simply set the tx flag before the state change can be in
progress by moving it before dlm_midcomms_commit_mhandle().

Cc: stable@vger.kernel.org
Fixes: 489d8e559c ("fs: dlm: add reliable connection if reconnect")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Alexander Aring
3c1bc8ded4 fs: dlm: be sure to call dlm_send_queue_flush()
[ Upstream commit 7354fa4ef6 ]

If we release a midcomms node structure, there should be nothing left
inside the dlm midcomms send queue. However, sometimes this is not true
because I believe some DLM_FIN message was not acked... if we run
into a shutdown timeout, then we should be sure there is no pending send
dlm message inside this queue when releasing midcomms node structure.

Cc: stable@vger.kernel.org
Fixes: 489d8e559c ("fs: dlm: add reliable connection if reconnect")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:19 +01:00
Alexander Aring
29682b8a3d fs: dlm: use WARN_ON_ONCE() instead of WARN_ON()
[ Upstream commit 775af20746 ]

To not get the console spammed about WARN_ON() of invalid states in the
dlm midcomms hot path handling we switch to WARN_ON_ONCE() to get it
only once that there might be an issue with the midcomms state handling.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 7354fa4ef6 ("fs: dlm: be sure to call dlm_send_queue_flush()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
a3b0e9ac3c fs: dlm: fix use after free in midcomms commit
[ Upstream commit 724b6bab0d ]

While working on processing dlm message in softirq context I experienced
the following KASAN use-after-free warning:

[  151.760477] ==================================================================
[  151.761803] BUG: KASAN: use-after-free in dlm_midcomms_commit_mhandle+0x19d/0x4b0
[  151.763414] Read of size 4 at addr ffff88811a980c60 by task lock_torture/1347

[  151.765284] CPU: 7 PID: 1347 Comm: lock_torture Not tainted 6.1.0-rc4+ #2828
[  151.766778] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.16.0-3.module+el8.7.0+16134+e5908aa2 04/01/2014
[  151.768726] Call Trace:
[  151.769277]  <TASK>
[  151.769748]  dump_stack_lvl+0x5b/0x86
[  151.770556]  print_report+0x180/0x4c8
[  151.771378]  ? kasan_complete_mode_report_info+0x7c/0x1e0
[  151.772241]  ? dlm_midcomms_commit_mhandle+0x19d/0x4b0
[  151.773069]  kasan_report+0x93/0x1a0
[  151.773668]  ? dlm_midcomms_commit_mhandle+0x19d/0x4b0
[  151.774514]  __asan_load4+0x7e/0xa0
[  151.775089]  dlm_midcomms_commit_mhandle+0x19d/0x4b0
[  151.775890]  ? create_message.isra.29.constprop.64+0x57/0xc0
[  151.776770]  send_common+0x19f/0x1b0
[  151.777342]  ? remove_from_waiters+0x60/0x60
[  151.778017]  ? lock_downgrade+0x410/0x410
[  151.778648]  ? __this_cpu_preempt_check+0x13/0x20
[  151.779421]  ? rcu_lockdep_current_cpu_online+0x88/0xc0
[  151.780292]  _convert_lock+0x46/0x150
[  151.780893]  convert_lock+0x7b/0xc0
[  151.781459]  dlm_lock+0x3ac/0x580
[  151.781993]  ? 0xffffffffc0540000
[  151.782522]  ? torture_stop+0x120/0x120 [dlm_locktorture]
[  151.783379]  ? dlm_scan_rsbs+0xa70/0xa70
[  151.784003]  ? preempt_count_sub+0xd6/0x130
[  151.784661]  ? is_module_address+0x47/0x70
[  151.785309]  ? torture_stop+0x120/0x120 [dlm_locktorture]
[  151.786166]  ? 0xffffffffc0540000
[  151.786693]  ? lockdep_init_map_type+0xc3/0x360
[  151.787414]  ? 0xffffffffc0540000
[  151.787947]  torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]
[  151.789004]  ? torture_stop+0x120/0x120 [dlm_locktorture]
[  151.789858]  ? 0xffffffffc0540000
[  151.790392]  ? lock_torture_cleanup+0x20/0x20 [dlm_locktorture]
[  151.791347]  ? delay_tsc+0x94/0xc0
[  151.791898]  torture_ex_iter+0xc3/0xea [dlm_locktorture]
[  151.792735]  ? torture_start+0x30/0x30 [dlm_locktorture]
[  151.793606]  lock_torture+0x177/0x270 [dlm_locktorture]
[  151.794448]  ? torture_dlm_lock_sync.isra.3+0x150/0x150 [dlm_locktorture]
[  151.795539]  ? lock_torture_stats+0x80/0x80 [dlm_locktorture]
[  151.796476]  ? do_raw_spin_lock+0x11e/0x1e0
[  151.797152]  ? mark_held_locks+0x34/0xb0
[  151.797784]  ? _raw_spin_unlock_irqrestore+0x30/0x70
[  151.798581]  ? __kthread_parkme+0x79/0x110
[  151.799246]  ? trace_preempt_on+0x2a/0xf0
[  151.799902]  ? __kthread_parkme+0x79/0x110
[  151.800579]  ? preempt_count_sub+0xd6/0x130
[  151.801271]  ? __kasan_check_read+0x11/0x20
[  151.801963]  ? __kthread_parkme+0xec/0x110
[  151.802630]  ? lock_torture_stats+0x80/0x80 [dlm_locktorture]
[  151.803569]  kthread+0x192/0x1d0
[  151.804104]  ? kthread_complete_and_exit+0x30/0x30
[  151.804881]  ret_from_fork+0x1f/0x30
[  151.805480]  </TASK>

[  151.806111] Allocated by task 1347:
[  151.806681]  kasan_save_stack+0x26/0x50
[  151.807308]  kasan_set_track+0x25/0x30
[  151.807920]  kasan_save_alloc_info+0x1e/0x30
[  151.808609]  __kasan_slab_alloc+0x63/0x80
[  151.809263]  kmem_cache_alloc+0x1ad/0x830
[  151.809916]  dlm_allocate_mhandle+0x17/0x20
[  151.810590]  dlm_midcomms_get_mhandle+0x96/0x260
[  151.811344]  _create_message+0x95/0x180
[  151.811994]  create_message.isra.29.constprop.64+0x57/0xc0
[  151.812880]  send_common+0x129/0x1b0
[  151.813467]  _convert_lock+0x46/0x150
[  151.814074]  convert_lock+0x7b/0xc0
[  151.814648]  dlm_lock+0x3ac/0x580
[  151.815199]  torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]
[  151.816258]  torture_ex_iter+0xc3/0xea [dlm_locktorture]
[  151.817129]  lock_torture+0x177/0x270 [dlm_locktorture]
[  151.817986]  kthread+0x192/0x1d0
[  151.818518]  ret_from_fork+0x1f/0x30

[  151.819369] Freed by task 1336:
[  151.819890]  kasan_save_stack+0x26/0x50
[  151.820514]  kasan_set_track+0x25/0x30
[  151.821128]  kasan_save_free_info+0x2e/0x50
[  151.821812]  __kasan_slab_free+0x107/0x1a0
[  151.822483]  kmem_cache_free+0x204/0x5e0
[  151.823152]  dlm_free_mhandle+0x18/0x20
[  151.823781]  dlm_mhandle_release+0x2e/0x40
[  151.824454]  rcu_core+0x583/0x1330
[  151.825047]  rcu_core_si+0xe/0x20
[  151.825594]  __do_softirq+0xf4/0x5c2

[  151.826450] Last potentially related work creation:
[  151.827238]  kasan_save_stack+0x26/0x50
[  151.827870]  __kasan_record_aux_stack+0xa2/0xc0
[  151.828609]  kasan_record_aux_stack_noalloc+0xb/0x20
[  151.829415]  call_rcu+0x4c/0x760
[  151.829954]  dlm_mhandle_delete+0x97/0xb0
[  151.830718]  dlm_process_incoming_buffer+0x2fc/0xb30
[  151.831524]  process_dlm_messages+0x16e/0x470
[  151.832245]  process_one_work+0x505/0xa10
[  151.832905]  worker_thread+0x67/0x650
[  151.833507]  kthread+0x192/0x1d0
[  151.834046]  ret_from_fork+0x1f/0x30

[  151.834900] The buggy address belongs to the object at ffff88811a980c30
                which belongs to the cache dlm_mhandle of size 88
[  151.836894] The buggy address is located 48 bytes inside of
                88-byte region [ffff88811a980c30, ffff88811a980c88)

[  151.839007] The buggy address belongs to the physical page:
[  151.839904] page:0000000076cf5d62 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11a980
[  151.841378] flags: 0x8000000000000200(slab|zone=2)
[  151.842141] raw: 8000000000000200 0000000000000000 dead000000000122 ffff8881089b43c0
[  151.843401] raw: 0000000000000000 0000000000220022 00000001ffffffff 0000000000000000
[  151.844640] page dumped because: kasan: bad access detected

[  151.845822] Memory state around the buggy address:
[  151.846602]  ffff88811a980b00: fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb fb
[  151.847761]  ffff88811a980b80: fb fb fb fc fc fc fc fa fb fb fb fb fb fb fb fb
[  151.848921] >ffff88811a980c00: fb fb fc fc fc fc fa fb fb fb fb fb fb fb fb fb
[  151.850076]                                                        ^
[  151.851085]  ffff88811a980c80: fb fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb
[  151.852269]  ffff88811a980d00: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fc
[  151.853428] ==================================================================
[  151.855618] Disabling lock debugging due to kernel taint

It is accessing a mhandle in dlm_midcomms_commit_mhandle() and the mhandle
was freed by a call_rcu() call in dlm_process_incoming_buffer(),
dlm_mhandle_delete(). It looks like it was freed because an ack of
this message was received. There is a short race between committing the
dlm message to be transmitted and getting an ack back. If the ack is
faster than returning from dlm_midcomms_commit_msg_3_2(), then we run
into a use-after free because we still need to reference the mhandle when
calling srcu_read_unlock().

To avoid that, we don't allow that mhandle to be freed between
dlm_midcomms_commit_msg_3_2() and srcu_read_unlock() by using rcu read
lock. We can do that because mhandle is protected by rcu handling.

Cc: stable@vger.kernel.org
Fixes: 489d8e559c ("fs: dlm: add reliable connection if reconnect")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
387c303894 fd: dlm: trace send/recv of dlm message and rcom
[ Upstream commit e01c4b7bd4 ]

This patch adds tracepoints for send and recv cases of dlm messages and
dlm rcom messages. In case of send and dlm message we add the dlm rsb
resource name this dlm messages belongs to. This has the advantage to
follow dlm messages on a per lock basis. In case of recv message the
resource name can be extracted by follow the send message sequence
number.

The dlm message DLM_MSG_PURGE doesn't belong to a lock request and will
not set the resource name in a dlm_message trace. The same for all rcom
messages.

There is additional handling required for this debugging functionality
which is tried to be small as possible. Also the midcomms layer gets
aware of lock resource names, for now this is required to make a
connection between sequence number and lock resource names. It is for
debugging purpose only.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 724b6bab0d ("fs: dlm: fix use after free in midcomms commit")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
8885e12aa1 fs: dlm: use packet in dlm_mhandle
[ Upstream commit 5b787667e8 ]

To allow more than just dereferencing the inner header we directly point
to the inner dlm packet which allows us to dereference the header, rcom
or message structure.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 724b6bab0d ("fs: dlm: fix use after free in midcomms commit")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
cb2849caad fs: dlm: remove send repeat remove handling
[ Upstream commit 57a5724ef0 ]

This patch removes the send repeat remove handling. This handling is
there to repeatingly DLM_MSG_REMOVE messages in cases the dlm stack
thinks it was not received at the first time. In cases of message drops
this functionality is necessary, but since the DLM midcomms layer
guarantees there are no messages drops between cluster nodes this
feature became not strict necessary anymore. Due message
delays/processing it could be that two send_repeat_remove() are sent out
while the other should be still on it's way. We remove the repeat remove
handling because we are sure that the message cannot be dropped due
communication errors.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 724b6bab0d ("fs: dlm: fix use after free in midcomms commit")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
14c5a584cb fs: dlm: start midcomms before scand
[ Upstream commit aad633dc0c ]

The scand kthread can send dlm messages out, especially dlm remove
messages to free memory for unused rsb on other nodes. To send out dlm
messages, midcomms must be initialized. This patch moves the midcomms
start before scand is started.

Cc: stable@vger.kernel.org
Fixes: e7fd41792f ("[DLM] The core of the DLM for GFS2/CLVM")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
f788920610 fs: dlm: add midcomms init/start functions
[ Upstream commit 8b0188b0d6 ]

This patch introduces leftovers of init, start, stop and exit
functionality. The dlm application layer should always call the midcomms
layer which getting aware of such event and redirect it to the lowcomms
layer. Some functionality which is currently handled inside the start
functionality of midcomms and lowcomms should be handled in the init
functionality as it only need to be initialized once when dlm is loaded.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: aad633dc0c ("fs: dlm: start midcomms before scand")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:18 +01:00
Alexander Aring
e7935f5af4 fs: dlm: fix log of lowcomms vs midcomms
[ Upstream commit 3e54c9e80e ]

This patch will fix a small issue when printing out that
dlm_midcomms_start() failed to start and it was printing out that the
dlm subcomponent lowcomms was failed but lowcomms is behind the midcomms
layer.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: aad633dc0c ("fs: dlm: start midcomms before scand")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:17 +01:00
Sean Christopherson
e136e969d2 KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace
[ Upstream commit e32b120071 ]

Call kvm_init() only after _all_ setup is complete, as kvm_init() exposes
/dev/kvm to userspace and thus allows userspace to create VMs (and call
other ioctls).  E.g. KVM will encounter a NULL pointer when attempting to
add a vCPU to the per-CPU loaded_vmcss_on_cpu list if userspace is able to
create a VM before vmx_init() configures said list.

 BUG: kernel NULL pointer dereference, address: 0000000000000008
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 0 P4D 0
 Oops: 0002 [#1] SMP
 CPU: 6 PID: 1143 Comm: stable Not tainted 6.0.0-rc7+ #988
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
 RIP: 0010:vmx_vcpu_load_vmcs+0x68/0x230 [kvm_intel]
  <TASK>
  vmx_vcpu_load+0x16/0x60 [kvm_intel]
  kvm_arch_vcpu_load+0x32/0x1f0 [kvm]
  vcpu_load+0x2f/0x40 [kvm]
  kvm_arch_vcpu_create+0x231/0x310 [kvm]
  kvm_vm_ioctl+0x79f/0xe10 [kvm]
  ? handle_mm_fault+0xb1/0x220
  __x64_sys_ioctl+0x80/0xb0
  do_syscall_64+0x2b/0x50
  entry_SYSCALL_64_after_hwframe+0x46/0xb0
 RIP: 0033:0x7f5a6b05743b
  </TASK>
 Modules linked in: vhost_net vhost vhost_iotlb tap kvm_intel(+) kvm irqbypass

Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221130230934.1014142-15-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:17 +01:00
Sean Christopherson
adc0dd8b04 KVM: x86: Move guts of kvm_arch_init() to standalone helper
[ Upstream commit 4f8396b96a ]

Move the guts of kvm_arch_init() to a new helper, kvm_x86_vendor_init(),
so that VMX can do _all_ arch and vendor initialization before calling
kvm_init().  Calling kvm_init() must be the _very_ last step during init,
as kvm_init() exposes /dev/kvm to userspace, i.e. allows creating VMs.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221130230934.1014142-14-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stable-dep-of: e32b120071 ("KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:17 +01:00
Sean Christopherson
5daa32be8c KVM: VMX: Don't bother disabling eVMCS static key on module exit
[ Upstream commit da66de44b0 ]

Don't disable the eVMCS static key on module exit, kvm_intel.ko owns the
key so there can't possibly be users after the kvm_intel.ko is unloaded,
at least not without much bigger issues.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221130230934.1014142-12-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stable-dep-of: e32b120071 ("KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:17 +01:00
Sean Christopherson
afb26bfc01 KVM: VMX: Reset eVMCS controls in VP assist page during hardware disabling
[ Upstream commit 2916b70fc3 ]

Reset the eVMCS controls in the per-CPU VP assist page during hardware
disabling instead of waiting until kvm-intel's module exit.  The controls
are activated if and only if KVM creates a VM, i.e. don't need to be
reset if hardware is never enabled.

Doing the reset during hardware disabling will naturally fix a potential
NULL pointer deref bug once KVM disables CPU hotplug while enabling and
disabling hardware (which is necessary to fix a variety of bugs).  If the
kernel is running as the root partition, the VP assist page is unmapped
during CPU hot unplug, and so KVM's clearing of the eVMCS controls needs
to occur with CPU hot(un)plug disabled, otherwise KVM could attempt to
write to a CPU's VP assist page after it's unmapped.

Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20221130230934.1014142-11-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stable-dep-of: e32b120071 ("KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:17 +01:00
Fedor Pchelkin
4d72cdd639 nfc: change order inside nfc_se_io error path
commit 7d834b4d1a upstream.

cb_context should be freed on the error path in nfc_se_io as stated by
commit 25ff6f8a5a ("nfc: fix memory leak of se_io context in
nfc_genl_se_io").

Make the error path in nfc_se_io unwind everything in reverse order, i.e.
free the cb_context after unlocking the device.

Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230306212650.230322-1-pchelkin@ispras.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 08:50:17 +01:00
Lee Jones
4cd8ffa488 HID: uhid: Over-ride the default maximum data buffer value with our own
commit 1c5d422124 upstream.

The default maximum data buffer size for this interface is UHID_DATA_MAX
(4k).  When data buffers are being processed, ensure this value is used
when ensuring the sanity, rather than a value between the user provided
value and HID_MAX_BUFFER_SIZE (16k).

Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 08:50:17 +01:00
Lee Jones
5a144cfe35 HID: core: Provide new max_buffer_size attribute to over-ride the default
commit b1a37ed00d upstream.

Presently, when a report is processed, its proposed size, provided by
the user of the API (as Report Size * Report Count) is compared against
the subsystem default HID_MAX_BUFFER_SIZE (16k).  However, some
low-level HID drivers allocate a reduced amount of memory to their
buffers (e.g. UHID only allocates UHID_DATA_MAX (4k) buffers), rending
this check inadequate in some cases.

In these circumstances, if the received report ends up being smaller
than the proposed report size, the remainder of the buffer is zeroed.
That is, the space between sizeof(csize) (size of the current report)
and the rsize (size proposed i.e. Report Size * Report Count), which can
be handled up to HID_MAX_BUFFER_SIZE (16k).  Meaning that memset()
shoots straight past the end of the buffer boundary and starts zeroing
out in-use values, often resulting in calamity.

This patch introduces a new variable into 'struct hid_ll_driver' where
individual low-level drivers can over-ride the default maximum value of
HID_MAX_BUFFER_SIZE (16k) with something more sympathetic to the
interface.

Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 08:50:17 +01:00
Zhihao Cheng
9cb27b1e76 ext4: zero i_disksize when initializing the bootloader inode
commit f5361da1e6 upstream.

If the boot loader inode has never been used before, the
EXT4_IOC_SWAP_BOOT inode will initialize it, including setting the
i_size to 0.  However, if the "never before used" boot loader has a
non-zero i_size, then i_disksize will be non-zero, and the
inconsistency between i_size and i_disksize can trigger a kernel
warning:

 WARNING: CPU: 0 PID: 2580 at fs/ext4/file.c:319
 CPU: 0 PID: 2580 Comm: bb Not tainted 6.3.0-rc1-00004-g703695902cfa
 RIP: 0010:ext4_file_write_iter+0xbc7/0xd10
 Call Trace:
  vfs_write+0x3b1/0x5c0
  ksys_write+0x77/0x160
  __x64_sys_write+0x22/0x30
  do_syscall_64+0x39/0x80

Reproducer:
 1. create corrupted image and mount it:
       mke2fs -t ext4 /tmp/foo.img 200
       debugfs -wR "sif <5> size 25700" /tmp/foo.img
       mount -t ext4 /tmp/foo.img /mnt
       cd /mnt
       echo 123 > file
 2. Run the reproducer program:
       posix_memalign(&buf, 1024, 1024)
       fd = open("file", O_RDWR | O_DIRECT);
       ioctl(fd, EXT4_IOC_SWAP_BOOT);
       write(fd, buf, 1024);

Fix this by setting i_disksize as well as i_size to zero when
initiaizing the boot loader inode.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217159
Cc: stable@kernel.org
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Link: https://lore.kernel.org/r/20230308032643.641113-1-chengzhihao1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 08:50:16 +01:00
Ye Bin
35161cec76 ext4: fix WARNING in ext4_update_inline_data
commit 2b96b4a5d9 upstream.

Syzbot found the following issue:
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
fscrypt: AES-256-CTS-CBC using implementation "cts-cbc-aes-aesni"
fscrypt: AES-256-XTS using implementation "xts-aes-aesni"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5071 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
Modules linked in:
CPU: 1 PID: 5071 Comm: syz-executor263 Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
RSP: 0018:ffffc90003c2f1c0 EFLAGS: 00010246
RAX: ffffc90003c2f220 RBX: 0000000000000014 RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003c2f248
RBP: ffffc90003c2f2d8 R08: dffffc0000000000 R09: ffffc90003c2f220
R10: fffff52000785e49 R11: 1ffff92000785e44 R12: 0000000000040d40
R13: 1ffff92000785e40 R14: dffffc0000000000 R15: 1ffff92000785e3c
FS:  0000555556c0d300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95d5e04138 CR3: 00000000793aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113
 __do_kmalloc_node mm/slab_common.c:956 [inline]
 __kmalloc+0xfe/0x190 mm/slab_common.c:981
 kmalloc include/linux/slab.h:584 [inline]
 kzalloc include/linux/slab.h:720 [inline]
 ext4_update_inline_data+0x236/0x6b0 fs/ext4/inline.c:346
 ext4_update_inline_dir fs/ext4/inline.c:1115 [inline]
 ext4_try_add_inline_entry+0x328/0x990 fs/ext4/inline.c:1307
 ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385
 ext4_add_nondir+0x96/0x260 fs/ext4/namei.c:2772
 ext4_create+0x36c/0x560 fs/ext4/namei.c:2817
 lookup_open fs/namei.c:3413 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x12ac/0x2dd0 fs/namei.c:3711
 do_filp_open+0x264/0x4f0 fs/namei.c:3741
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Above issue happens as follows:
ext4_iget
   ext4_find_inline_data_nolock ->i_inline_off=164 i_inline_size=60
ext4_try_add_inline_entry
   __ext4_mark_inode_dirty
      ext4_expand_extra_isize_ea ->i_extra_isize=32 s_want_extra_isize=44
         ext4_xattr_shift_entries
	 ->after shift i_inline_off is incorrect, actually is change to 176
ext4_try_add_inline_entry
  ext4_update_inline_dir
    get_max_inline_xattr_value_size
      if (EXT4_I(inode)->i_inline_off)
	entry = (struct ext4_xattr_entry *)((void *)raw_inode +
			EXT4_I(inode)->i_inline_off);
        free += EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size));
	->As entry is incorrect, then 'free' may be negative
   ext4_update_inline_data
      value = kzalloc(len, GFP_NOFS);
      -> len is unsigned int, maybe very large, then trigger warning when
         'kzalloc()'

To resolve the above issue we need to update 'i_inline_off' after
'ext4_xattr_shift_entries()'.  We do not need to set
EXT4_STATE_MAY_INLINE_DATA flag here, since ext4_mark_inode_dirty()
already sets this flag if needed.  Setting EXT4_STATE_MAY_INLINE_DATA
when it is needed may trigger a BUG_ON in ext4_writepages().

Reported-by: syzbot+d30838395804afc2fa6f@syzkaller.appspotmail.com
Cc: stable@kernel.org
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230307015253.2232062-3-yebin@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 08:50:16 +01:00