CVE-2026-43370

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)

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.17 — 5.10.253
linux	linux_kernel	5.11 — 5.15.203
linux	linux_kernel	5.16 — 6.1.167
linux	linux_kernel	6.2 — 6.6.130
linux	linux_kernel	6.7 — 6.12.78
linux	linux_kernel	6.13 — 6.18.19
linux	linux_kernel	6.19 — 6.19.9
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2026-43370? +

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) It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43370? +

CVE-2026-43370 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-43370? +

CVE-2026-43370 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-43370? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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