What’s Vulnerable › Vulnerabilities

CVE-2025-21940: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-01 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530)

Affected products

• Linux kernel: from 6.12 before 6.12.19; from 6.13 before 6.13.7; 6.14-rc1, 6.14-rc2, 6.14-rc3, 6.14-rc4, 6.14-rc5 — fixed in 6.12.19, 6.13.7

How to fix

Upgrade to a fixed version: Linux kernel 6.12.19, 6.13.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80
• https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7
• https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f

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