CVE-2024-56603

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74

Description A vulnerability in the Linux kernel has been resolved, specifically in the can create() function. On error, can create() frees the allocated sk object, but sock init data() has already attached it to the provided sock object. This leaves a dangling sk pointer in the sock object and may cause use-after-free later.

Recommendations For Linux kernel versions prior to 6.6.74, update to version 6.6.74 or later to resolve the issue. As a temporary workaround, consider restricting access to the can create() function until a patch is available. Avoid using the sk object in the affected can create() function until the issue is resolved.