CVE-2025-38405: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix memory leak of bio integrity If nvmet receives commands with metadata there is a continuous memory leak of kmalloc-128 slab or more precisely bio->bi_integrity. Since commit bf4c89fc8797 ("block: don't call bio_uninit from bio_endio") each user of bio_init has to use bio_uninit as well. Otherwise the bio integrity is not getting free. Nvmet uses bio_init for inline bios. Uninit the inline bio to complete deallocation of integrity in bio.

Affected products

• Linux Linux Kernel: from 6.10.10, before 6.12.37 (fixed in 6.12.37); from 6.13, before 6.15.6 (fixed in 6.15.6); version 6.16 only

Published 2025-07-25. Last modified 2026-07-30.