linux/drivers/gpu
Linmao Li 8d33c4987c drm/xe/oa: Fix sync entry leak on OA config emit failure
xe_oa_emit_oa_config() releases the sync entries and the syncs array
only on its success path. When it fails before the point of no return
(fence allocation, config buffer allocation or batch submission), it
returns without touching stream->syncs.

The stream open path handles such failures in the caller, but
xe_oa_config_locked() propagates the error without any cleanup, so the
syncs array and the fence references held by the parsed entries are
leaked. The next config ioctl overwrites stream->syncs, making the
memory unreachable for good.

Clean up the parsed syncs when xe_oa_emit_oa_config() fails, matching
the cleanup done by the stream open error path.

Fixes: 9920c8b88c ("drm/xe/oa: Add syncs support to OA config ioctl")
Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20260731011932.3426219-1-lilinmao@kylinos.cn
(cherry picked from commit 8af97b3da2)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
History 2026-08-13 14:56:33 +02:00
..
drm drm/xe/oa: Fix sync entry leak on OA config emit failure 2026-08-13 14:56:33 +02:00
host1x gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings 2026-07-16 20:26:28 +02:00
ipu-v3 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
nova-core drm-next for 7.2-rc1 2026-06-17 10:21:00 +01:00
tests gpu/tests/gpu_buddy: Add gpu_test_buddy_alloc_range for exact-range allocation 2026-03-09 13:58:12 +05:30
trace gpu/trace: make TRACE_GPU_MEM configurable 2025-07-08 09:34:47 -07:00
vga fbdev: Wrap fbcon updates from vga-switcheroo in helper 2026-06-09 16:00:11 +02:00
buddy.c gpu/buddy: bail out of try_harder when alignment cannot be honoured 2026-07-09 18:49:49 +05:30
Kconfig gpu: Move DRM buddy allocator one level up (part two) 2026-02-06 11:38:35 +10:00
Makefile gpu: Fix uninitialized buddy for built-in drivers 2026-02-24 13:40:59 +10:00