CVE-2025-40055: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in user_cluster_connect() user_cluster_disconnect() frees "conn->cc_private" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free.

Affected products

• Linux Linux: from 3.14, before 5.4.301 (fixed in 5.4.301); from 5.5, before 5.10.246 (fixed in 5.10.246); from 5.11, before 5.15.195 (fixed in 5.15.195); from 5.16, before 6.1.156 (fixed in 6.1.156); from 6.2, before 6.6.112 (fixed in 6.6.112); from 6.7, before 6.12.53 (fixed in 6.12.53); …

Published 2025-10-28. Last modified 2026-06-17.