CVE-2026-31462 drm/amdgpu: prevent immediate PASID reuse case

What is CVE-2026-31462?

CVE-2026-31462 is a medium-severity vulnerability in Linux kernel, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: prevent immediate PASID reuse case

PASID resue could cause interrupt issue when process immediately runs into hw state left by previous process exited with the same PASID, it's possible that page faults are still pending in the IH ring buffer when the process exits and frees up its PASID. To prevent the case, it uses idr cyclic allocator same as kernel pid's.

(cherry picked from commit 8f1de51f49be692de137c8525106e0fce2d1912d)

Which versions are affected by CVE-2026-31462?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-31462?

Apply the vendor's patch.

Is CVE-2026-31462 being exploited?

There is no known exploitation of CVE-2026-31462 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-83234, BELL-CVE-2026-31462, DEBIAN-CVE-2026-31462, GHSA-f9h6-fphq-w3rh, ROOT-OS-DEBIAN-11-CVE-2026-31462, ROOT-OS-DEBIAN-12-CVE-2026-31462 and 4 more.