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| author | Iwona Winiarska <iwona.winiarska@intel.com> | 2022-07-05 12:15:01 +0200 |
|---|---|---|
| committer | Iwona Winiarska <iwona.winiarska@intel.com> | 2022-08-15 20:31:35 +0200 |
| commit | 1c11289b34ab67ed080bbe0f1855c4938362d9cf (patch) | |
| tree | 710ed11c919133f7bfdc33d0a523f5d1730567b1 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | e79b548b7202bb3accdfe64f113129a4340bc2f9 (diff) | |
peci: cpu: Fix use-after-free in adev_release()
When auxiliary_device_add() returns an error, auxiliary_device_uninit()
is called, which causes refcount for device to be decremented and
.release callback will be triggered.
Because adev_release() re-calls auxiliary_device_uninit(), it will cause
use-after-free:
[ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15
[ 1269.464007] refcount_t: underflow; use-after-free.
Reported-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20220705101501.298395-1-iwona.winiarska@intel.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions