#VU121367 Use-after-free in Linux kernel - CVE-2025-71071
Published: January 14, 2026
Vulnerability identifier: #VU121367
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-71071
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mtk_iommu_mm_dts_parse(), mtk_iommu_probe() and mtk_iommu_remove() functions in drivers/iommu/mtk_iommu.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1ef70a0b104ae8011811f60bcfaa55ff49385171
- https://git.kernel.org/stable/c/5c04217d06a1161aaf36267e9d971ab6f847d5a7
- https://git.kernel.org/stable/c/896ec55da3b90bdb9fc04fedc17ad8c359b2eee5
- https://git.kernel.org/stable/c/de83d4617f9fe059623e97acf7e1e10d209625b5
- https://git.kernel.org/stable/c/f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a