Use After Free in Linux

CVE-2025-71071

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: fix use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.

Vulnerability class: Use-After-Free

EPSS: 0.001 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 26593928564cf5b576ff05d3cbd958f57c9534bb, 51080de72e26771f0ed9d44982974279ccbc92b8, 6.2
  • Linux Linux_kernel — versions 6.2, 6.19

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-71071?
CVE-2025-71071 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2026-01-13.
How severe is CVE-2025-71071?
High severity. CVSS v3 base score is 7.8 out of 10.