In the Linux kernel, the following vulnerability has been resolved: drm/xe/migrate: prevent potential UAF If we hit the error path, the previous fence (if there is one) has already been put() prior to this, so doing a fence_wait could lead to UAF. Tweak the flow to do to the put() until after we do the wait. (cherry picked from commit 9b7ca35ed28fe5fad86e9d9c24ebd1271e4c9c3e)
https://git.kernel.org/stable/c/7e46fa64a4b94208563c3a5bf1d7f4346f94abea
https://git.kernel.org/stable/c/145832fbdd17b1d77ffd6cdd1642259e101d1b7e