What’s Vulnerable › Vulnerabilities

CVE-2024-49991: drm/amdkfd: amdkfd_free_gtt_mem clear the correct pointer

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-21 · updated 2026-08-04
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: amdkfd_free_gtt_mem clear the correct pointer Pass pointer reference to amdgpu_bo_unref to clear the correct pointer, otherwise amdgpu_bo_unref clear the local variable, the original pointer not set to NULL, this could cause use-after-free bug.

Affected products

• Debian Linux: 11.0
• Linux kernel: before 6.1.118; from 6.2 before 6.6.55; from 6.7 before 6.10.14; from 6.11 before 6.11.3 — fixed in 6.1.118, 6.10.14, 6.11.3, 6.6.55

How to fix

Upgrade to a fixed version: Linux kernel 6.1.118, 6.10.14, 6.11.3, 6.6.55. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/30ceb873cc2e97348d9da2265b2d1ddf07f682e1
• https://git.kernel.org/stable/c/6c9289806591807e4e3be9a23df8ee2069180055
• https://git.kernel.org/stable/c/71f3240f82987f0f070ea5bed559033de7d4c0e1
• https://git.kernel.org/stable/c/c86ad39140bbcb9dc75a10046c2221f657e8083b
• https://git.kernel.org/stable/c/e7831613cbbcd9058d3658fbcdc5d5884ceb2e0c
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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