CVE-2024-49943

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc_submit: add missing locking in wedged_fini Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock. (cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)

The following products are affected by CVE-2024-49943 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-49943.

URL	Resource
https://git.kernel.org/stable/c/790533e44bfc7af929842fccd9674c9f424d4627
https://git.kernel.org/stable/c/d88f9bab7e62dd0dbe983fa70cf040042a60cc84
https://lore.kernel.org/linux-cve-announce/2024102128-CVE-2024-49943-f733@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-49943
https://www.cve.org/CVERecord?id=CVE-2024-49943