diff options
| author | Lizhi Hou <lizhi.hou@amd.com> | 2026-09-01 09:01:29 -0700 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2026-09-01 10:42:22 -0700 |
| commit | 6a1f6cb7593aebcdb4f9022410622128fb23b1a1 (patch) | |
| tree | 9d215d732649a3202a3be019b8eefd126e868d8e /tools/perf/scripts/python/stackcollapse.py | |
| parent | 445d20910429b41e88768624b914344658991a5b (diff) | |
| download | linux-6a1f6cb7593aebcdb4f9022410622128fb23b1a1.tar.gz linux-6a1f6cb7593aebcdb4f9022410622128fb23b1a1.zip | |
accel/amdxdna: Fix possible use-after-free when freeing device BO
When the DRM file descriptor is closed, amdxdna_client_cleanup() frees
the client structure. If device BOs are still alive, freeing them may
access abo->client and result in a use-after-free.
Move amdxdna_gem_heap_free(), which accesses abo->client, before clearing
abo->client in the BO close callback. Also track the heap BOs referenced
by device BOs so they can be accessed without dereferencing abo->client.
Fixes: dbc8fd7a03cb ("accel/amdxdna: Add expandable device heap support")
Reviewed-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260901160129.3812405-1-lizhi.hou@amd.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions