drm/xe: Fix memory leak in exec_queue_set_hang_replay_state()

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The q->replay_state is blindly overwritten, which can potentially leak
memory that was previously allocated by vmemdup_user().
Return an error if q->replay_state is not empty.

Discovered using AI-assisted static analysis confirmed by Intel Product
Security.

Reported-by: Martin Hodo <martin.hodo@intel.com>
Fixes: 1026c1a73a ("drm/xe: Implement DRM_XE_EXEC_QUEUE_SET_HANG_REPLAY_STATE")
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260624111421.1258364-1-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>

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Michał Winiarski 2026-06-24 13:14:20 +02:00

parent 41fe15d1a4

commit f6b6cc1118

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/xe/xe_exec_queue.c

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