What’s Vulnerable › Vulnerabilities

CVE-2026-46311: drm/amdgpu/userq: fix access to stale wptr mapping

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-08 · updated 2026-10-19
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: fix access to stale wptr mapping Use drm_exec to take both locks i.e vm root bo and wptr_obj bo to access the mapping data properly. This fixes the security issue of unmap the wptr_obj while a queue creation is in progress and passing other bo at same address. (cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)

Affected products

• Linux kernel: from 6.16 before 7.0.9; 7.1-rc1, 7.1-rc2 — fixed in 7.0.9

How to fix

Upgrade to a fixed version: Linux kernel 7.0.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2da62dbb4169e758c0b1a9378b39a373bf4fb111
• https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991
• https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8ea

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