What’s Vulnerable › Vulnerabilities

CVE-2026-43370: drm/amdgpu: Fix use-after-free race in VM acquire

• 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: 2026-05-08 · updated 2026-10-19
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix use-after-free race in VM acquire Replace non-atomic vm->process_info assignment with cmpxchg() to prevent race when parent/child processes sharing a drm_file both try to acquire the same VM after fork(). (cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)

Affected products

• Linux kernel: from 4.17 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.78; from 6.13 before 6.18.19 — fixed in 5.10.253, 5.15.203, 6.1.167, 6.12.78, 6.18.19, 6.19.9

How to fix

Upgrade to a fixed version: Linux kernel 5.10.253, 5.15.203, 6.1.167, 6.12.78. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2c1030f2e84885cc58bffef6af67d5b9d2e7098f
• https://git.kernel.org/stable/c/46d309996bd9251792d7dafdbaf615cf202b4447
• https://git.kernel.org/stable/c/7885eb335d8f9e9942925d57e300a85e3f82ded4
• https://git.kernel.org/stable/c/904025fa8bba1d028adade33346372b4ac1a9249
• https://git.kernel.org/stable/c/94b7782d0c8024f5b88454241c8d4777076c3786
• https://git.kernel.org/stable/c/ae87aea330c24f462fc7058ed543ba8bc6798447
• https://git.kernel.org/stable/c/c658c1c85ec235b7ecfbf8dbfee385b1332088f4
• https://git.kernel.org/stable/c/e61e355cbe49e585097eee28c15b862bfb1c0668

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