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

What is CVE-2024-46867?

CVE-2024-46867 is a medium-severity vulnerability in Linux kernel, published on 27 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

drm/xe/client: fix deadlock in show_meminfo()

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 that by dropping the ref using xe_bo_put_deferred(), and moving the final commit outside of the lock. Dropping the lock around the put is tricky since the bo can go out of scope and delete itself from the list, making it difficult to navigate to the next list entry.

(cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)

Weakness: CWE-667

Which versions are affected by CVE-2024-46867?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46867?

Apply the vendor's patch.

Is CVE-2024-46867 being exploited?

There is no known exploitation of CVE-2024-46867 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-46867, DEBIAN-CVE-2024-46867, GHSA-rp89-9jxh-73fw, UBUNTU-CVE-2024-46867.