diff options
| author | Tina Zhang <tina.zhang@intel.com> | 2020-02-25 13:35:27 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2020-02-25 16:14:20 +0800 |
| commit | b549c252b1292aea959cd9b83537fcb9384a6112 (patch) | |
| tree | a2b6c2ff0a12f7667dfc7c10536a7abfcc7d7d71 /drivers/gpu/drm/i915/gvt/vgpu.c | |
| parent | 3eb55e6f753a379e293395de8d5f3be28351a7f8 (diff) | |
drm/i915/gvt: Fix orphan vgpu dmabuf_objs' lifetime
Deleting dmabuf item's list head after releasing its container can lead
to KASAN-reported issue:
BUG: KASAN: use-after-free in __list_del_entry_valid+0x15/0xf0
Read of size 8 at addr ffff88818a4598a8 by task kworker/u8:3/13119
So fix this issue by puting deleting dmabuf_objs ahead of releasing its
container.
Fixes: dfb6ae4e14bd6 ("drm/i915/gvt: Handle orphan dmabuf_objs")
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200225053527.8336-2-tina.zhang@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/vgpu.c')
0 files changed, 0 insertions, 0 deletions