CVE-2024-56600

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, where the inet6 create() function did not properly clear a dangling sk pointer. The sock init data() function attaches the allocated sk pointer to the provided sock object. If inet6 create() fails later, the sk object is released, but the sock object retains the dangling sk pointer, which may cause a use-after-free error 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 implementing custom error handling to clear the sk pointer in case of an error in inet6 create(). Restrict access to the inet6 create() function to minimize the risk of exploitation until the update is applied.