CVE-2024-46866

A vulnerability in the Linux kernel's drm/xe/client driver was resolved. This issue was resolved by adding the missing buffer object BO locking in the showmeminfo function. Inspecting the BO state without this lock led to a NULL pointer dereference NPD or use-after-free UAF issues due to concurre...

CVE-2024-46866

In the Linux kernel, the following vulnerability has been resolved: drm/xe/client: add missing bo locking in showmeminfo bomeminfo wants to inspect bo state like tt and the ttm resource, however this state can change at any point leading to stuff like NPD and UAF, if the bo lock is not held. Grab...

CVE-2024-46867

In the Linux kernel, the following vulnerability has been resolved: drm/xe/client: fix deadlock in showmeminfo There is a real deadlock as well as sleeping in atomic bug in here, if the bo put happens to be the last ref, since bo destruction wants to grab the same spinlock and sleeping locks. Fix...

CVE-2024-46867 drm/xe/client: fix deadlock in show_meminfo()

In the Linux kernel, the following vulnerability has been resolved: drm/xe/client: fix deadlock in showmeminfo There is a real deadlock as well as sleeping in atomic bug in here, if the bo put happens to be the last ref, since bo destruction wants to grab the same spinlock and sleeping locks. Fix...

CVE-2024-46867

In CVE-2024-46867, the Linux kernel component drm/xe/client exhibited a deadlock and an atomic sleep issue in show_meminfo when the bo (buffer object) being destroyed had the last reference. The root cause was the destruction path attempting to grab the same spinlock, risking a sleep in atomic co...

CVE-2024-46866

CVE-2024-46866 is a Linux kernel DRM-XE issue: bo_meminfo() can inspect bo state (tt/ttm) without holding the bo lock, allowing state changes that may cause NPD or UAF. The fix grabs the bo lock during bo_meminfo() and adds a ref for object_idr; v2 also introduces xe_bo_assert_held(). Concrete de...

CVE-2024-46866 drm/xe/client: add missing bo locking in show_meminfo()

In the Linux kernel, the following vulnerability has been resolved: drm/xe/client: add missing bo locking in showmeminfo bomeminfo wants to inspect bo state like tt and the ttm resource, however this state can change at any point leading to stuff like NPD and UAF, if the bo lock is not held. Grab...