CVE-2026-31390 drm/xe: Fix memory leak in xe_vm_madvise_ioctl

What is CVE-2026-31390?

CVE-2026-31390 is a medium-severity denial of service vulnerability in Linux kernel, published on 3 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/xe: Fix memory leak in xe_vm_madvise_ioctl

When check_bo_args_are_sane() validation fails, jump to the new free_vmas cleanup label to properly free the allocated resources. This ensures proper cleanup in this error path.

(cherry picked from commit 29bd06faf727a4b76663e4be0f7d770e2d2a7965)

Weakness: CWE-401

Which versions are affected by CVE-2026-31390?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-31390?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-31390 being exploited?

There is no known exploitation of CVE-2026-31390 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 BELL-CVE-2026-31390, DEBIAN-CVE-2026-31390, GHSA-fpjr-hm8v-68cj, UBUNTU-CVE-2026-31390.