CVE-2025-39924: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: erofs: fix invalid algorithm for encoded extents The current algorithm sanity checks do not properly apply to new encoded extents. Unify the algorithm check with Z_EROFS_COMPRESSION(_RUNTIME)_MAX and ensure consistency with sbi->available_compr_algs.

Affected products

• Linux Linux Kernel: from 6.15, before 6.16.8 (fixed in 6.16.8); version 6.17 only

Published 2025-10-01. Last modified 2026-07-30.