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| author | Guixin Liu <kanie@linux.alibaba.com> | 2025-01-07 05:20:32 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-01-11 02:07:17 +0300 |
| commit | 295006f6e8c17212d3098811166e29627d19e05c (patch) | |
| tree | f9ad4df3c984edd644f91df798027b428a910f7c /scripts/gdb/linux/lists.py | |
| parent | 1e95c798d8a7f70965f0f88d4657b682ff0ec75f (diff) | |
| download | linux-295006f6e8c17212d3098811166e29627d19e05c.tar.xz | |
scsi: mpi3mr: Fix possible crash when setting up bsg fails
If bsg_setup_queue() fails, the bsg_queue is assigned a non-NULL value.
Consequently, in mpi3mr_bsg_exit(), the condition "if(!mrioc->bsg_queue)"
will not be satisfied, preventing execution from entering
bsg_remove_queue(), which could lead to the following crash:
BUG: kernel NULL pointer dereference, address: 000000000000041c
Call Trace:
<TASK>
mpi3mr_bsg_exit+0x1f/0x50 [mpi3mr]
mpi3mr_remove+0x6f/0x340 [mpi3mr]
pci_device_remove+0x3f/0xb0
device_release_driver_internal+0x19d/0x220
unbind_store+0xa4/0xb0
kernfs_fop_write_iter+0x11f/0x200
vfs_write+0x1fc/0x3e0
ksys_write+0x67/0xe0
do_syscall_64+0x38/0x80
entry_SYSCALL_64_after_hwframe+0x78/0xe2
Fixes: 4268fa751365 ("scsi: mpi3mr: Add bsg device support")
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250107022032.24006-1-kanie@linux.alibaba.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'scripts/gdb/linux/lists.py')
0 files changed, 0 insertions, 0 deletions