CVE-2025-39929: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path During tests of another unrelated patch I was able to trigger this error: Objects remaining on __kmem_cache_shutdown()

Affected products

• Linux Linux Kernel: from 4.16, before 6.1.154 (fixed in 6.1.154); from 6.2, before 6.6.108 (fixed in 6.6.108); from 6.7, before 6.12.49 (fixed in 6.12.49); from 6.13, before 6.16.9 (fixed in 6.16.9); version 6.17 only

Published 2025-10-04. Last modified 2026-07-30.