CVE-2024-58009: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

Affected products

• Linux Linux Kernel: from 5.4.287, before 5.4.291 (fixed in 5.4.291); from 5.10.231, before 5.10.235 (fixed in 5.10.235); from 5.15.174, before 5.15.179 (fixed in 5.15.179); from 6.1.120, before 6.1.129 (fixed in 6.1.129); from 6.6.66, before 6.6.78 (fixed in 6.6.78); from 6.12.5, before 6.12.14 (fixed in 6.12.14); …

Published 2025-02-27. Last modified 2026-06-17.