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| author | Juntong Deng <[email protected]> | 2023-10-29 21:10:06 +0000 |
|---|---|---|
| committer | Andreas Gruenbacher <[email protected]> | 2023-11-06 00:51:26 +0000 |
| commit | bdcb8aa434c6d36b5c215d02a9ef07551be25a37 (patch) | |
| tree | 1154c109e3ce89a69219fc439f53ec56158f4c9e /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | gfs2: Silence "suspicious RCU usage in gfs2_permission" warning (diff) | |
| download | kernel-bdcb8aa434c6d36b5c215d02a9ef07551be25a37.tar.gz kernel-bdcb8aa434c6d36b5c215d02a9ef07551be25a37.zip | |
gfs2: Fix slab-use-after-free in gfs2_qd_dealloc
In gfs2_put_super(), whether withdrawn or not, the quota should
be cleaned up by gfs2_quota_cleanup().
Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu
callback) has run for all gfs2_quota_data objects, resulting in
use-after-free.
Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called
by gfs2_make_fs_ro(), so in gfs2_put_super(), after calling
gfs2_make_fs_ro(), there is no need to call them again.
Reported-by: [email protected]
Closes: https://syzkaller.appspot.com/bug?extid=29c47e9e51895928698c
Signed-off-by: Juntong Deng <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
0 files changed, 0 insertions, 0 deletions