PT-2024-7866 · Linux+5 · Linux Kernel+5
Published
2024-03-08
·
Updated
2025-03-28
·
CVE-2024-26943
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the
nouveau/dmem component in the Linux kernel, where the kcalloc() function in nouveau dmem evict chunk() may return null if physical memory runs out, leading to null pointer dereference bugs when src pfns, dst pfns, or dma addrs are dereferenced. This can cause the GPU to become unavailable and prevent the eviction of all pages mapping a chunk. The patch adds a GFP NOFAIL flag to kcalloc() and switches to kvcalloc() to avoid failing allocations.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu