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| author | Philip Yang <[email protected]> | 2021-07-29 21:19:54 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-08-31 18:20:40 +0000 |
| commit | d7eff46c214c036606dd3cd305bd5a128aecfe8c (patch) | |
| tree | 2c95a0dd113848f31f803f3b5073ba4c2ddd5a01 /lib/netdev-notifier-error-inject.c | |
| parent | drm/amdgpu: Fix a deadlock if previous GEM object allocation fails (diff) | |
| download | kernel-d7eff46c214c036606dd3cd305bd5a128aecfe8c.tar.gz kernel-d7eff46c214c036606dd3cd305bd5a128aecfe8c.zip | |
drm/amdgpu: fix fdinfo race with process exit
Get process vm root BO ref in case process is exiting and root BO is
freed, to avoid NULL pointer dereference backtrace:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000000
Call Trace:
amdgpu_show_fdinfo+0xfe/0x2a0 [amdgpu]
seq_show+0x12c/0x180
seq_read+0x153/0x410
vfs_read+0x91/0x140[ 3427.206183] ksys_read+0x4f/0xb0
do_syscall_64+0x5b/0x1a0
entry_SYSCALL_64_after_hwframe+0x65/0xca
Signed-off-by: Philip Yang <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions