In the Linux kernel, the following vulnerability has been resolved:

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.

(cherry picked from commit c3a1c3579b1250060da73507a4acef712974c78a)

https://git.kernel.org/stable/c/14abbed336a2d1bbd726c25d148d2ec0ff928073

https://git.kernel.org/stable/c/bf126747e7bff55e5ba0b1ec10fc5fce99feaed9

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