PT-2024-6087 · Linux · Linux Kernel

Published 2024-02-05 · Updated 2024-04-29 · CVE-2024-26912

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base 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 drm/nouveau component of the Linux kernel, where several DMA buffer leaks are fixed. Nouveau manages GSP-RM DMA buffers with nvkm gsp mem objects, and some of these buffers are never deallocated. The fix involves poisoning the buffer and clearing the nvkm gsp mem object when it is deallocated, which should trigger an error or crash from GSP-RM if it tries to access the buffer after deallocation. The mem->size field is also changed to a size t to match the type expected by dma alloc coherent. This issue can be exploited to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2024-06992

CVE-2024-26912

Affected Products

Linux Kernel

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26912.json · Exploit
• https://git.kernel.org/stable/c/6190d4c08897d748dd25f0b78267a90aa1694e15 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-26912 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-26912 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06992 · Security Note
• https://cve.org/CVERecord?id=CVE-2024-26912 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-26912 · Vendor Advisory
• https://git.kernel.org/stable/c/042b5f83841fbf7ce39474412db3b5e4765a7ea7 · Patch
• https://ubuntu.com/security/CVE-2024-26912 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-26912 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-26912 · Security Note
• https://osv.dev/vulnerability/CVE-2024-26912 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2024-0905SE18MD · Vendor Advisory
• https://git.kernel.org/linus/042b5f83841fbf7ce39474412db3b5e4765a7ea7 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note