Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a null pointer dereference issue in the xemigratecopy function in the drm/xe subsystem...

SUSE 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...

SUSE 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

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-2024-46866

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...

UBUNTU-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 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-2024-46867 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-2024-46866 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...

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...

CVE-2024-46866

The CVE-2024-46866 issue in the Linux kernel affects the drm/xe client, specifically the bo_meminfo path. Root cause: bo_meminfo() inspects bo state (tt and ttm resource) without consistently holding the bo lock, allowing state changes that can cause NPD or UAF. Mitigation implemented by grabbing...

CVE-2024-46718

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is triggering hardware bugs on certain platforms. Use 2M pages for the last unaligned to 1G VRAM chunk. v2: - Always use 2M pages for last chunk Fe...

DEBIAN-CVE-2024-46718

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is triggering hardware bugs on certain platforms. Use 2M pages for the last unaligned to 1G VRAM chunk. v2: - Always use 2M pages for last chunk Fe...

CVE-2024-46718

CVE-2024-46718 affects the Linux kernel DRM/xe identity VRAM mapping. The issue is overmapping the identity VRAM mapping, which could trigger hardware bugs on certain platforms. The fix uses 2M pages for the last unaligned (to 1G) VRAM chunk, with v2/v3 updates tightening page usage and checks (2...

CVE-2024-46718

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is triggering hardware bugs on certain platforms. Use 2M pages for the last unaligned to 1G VRAM chunk. v2: - Always use 2M pages for last chunk Fe...

SUSE CVE-2024-46705

In the Linux kernel, the following vulnerability has been resolved: drm/xe: reset mmio mappings with devm Set our various mmio mappings to NULL. This should make it easier to catch something rogue trying to mess with mmio after device removal. For example, we might unmap everything and then start...

PT-2024-33922

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability has been resolved in the Linux kernel, specifically in the drm/xe/oa component. The issue arises when the xe bb create job function appends a MI BATCH BUFFER END to the...

SUSE CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...