linux/drivers/gpu
Guangshuo Li 14abbed336 drm/xe: free madvise VMA array on L2 flush failure
xe_vm_madvise_ioctl() allocates madvise_range.vmas in get_vmas().
After get_vmas() succeeds with at least one VMA, error paths must go
through free_vmas so the array is released before the madvise details are
destroyed.

The L2 flush validation path added for PAT madvise rejects some
SVM/userptr ranges after get_vmas() has succeeded, but jumps directly to
madv_fini. This skips kfree(madvise_range.vmas), leaking the VMA array on
each failed ioctl.

Jump to free_vmas instead, matching the other validation failure paths
after get_vmas() has succeeded.

Fixes: 4f39a194d4 ("drm/xe/xe3p_lpg: Restrict UAPI to enable L2 flush optimization")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260708073422.725186-1-lgs201920130244@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit c3a1c3579b)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2026-07-09 12:09:37 +02:00
..
drm drm/xe: free madvise VMA array on L2 flush failure 2026-07-09 12:09:37 +02:00
host1x gpu: host1x: Fix iommu_map_sgtable() return value check 2026-05-28 17:19:30 +02:00
ipu-v3
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
vga fbdev: Wrap fbcon updates from vga-switcheroo in helper 2026-06-09 16:00:11 +02:00
buddy.c drm/buddy: Integrate lockdep annotations for gpu buddy manager 2026-05-08 19:16:19 +05:30
Kconfig
Makefile gpu: Fix uninitialized buddy for built-in drivers 2026-02-24 13:40:59 +10:00