CVE-2024-56645: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939_session_new(): fix skb reference counting Since j1939_session_skb_queue() does an extra skb_get() for each new skb, do the same for the initial one in j1939_session_new() to avoid refcount underflow. [mkl: clean up commit message]

Affected products

• Linux Linux Kernel: from 5.4, before 5.4.287 (fixed in 5.4.287); from 5.5, before 5.10.231 (fixed in 5.10.231); from 5.11, before 5.15.174 (fixed in 5.15.174); from 5.16, before 6.1.120 (fixed in 6.1.120); from 6.2, before 6.6.66 (fixed in 6.6.66); from 6.7, before 6.12.5 (fixed in 6.12.5); …

Published 2024-12-27. Last modified 2026-08-04.