CVE-2024-26695

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.8.0-rc1+ #311

Description The vulnerability is related to a null pointer dereference in the sev platform shutdown locked function. This issue can be triggered when the SEV platform device is shut down with a null psp master, for example, using DEBUG TEST DRIVER REMOVE. The vulnerability was found using KASAN (Kernel Address Sanitizer).

Technical details about exploitation include:

Recommendations To resolve this issue, update the Linux kernel to a version that includes the fix for the null pointer dereference in sev platform shutdown locked. Specifically, versions 6.8.0-rc1+ #311 and later should include this fix.

As a temporary workaround, consider disabling the sev platform shutdown locked function until a patch is available. However, this may have unintended consequences on system functionality and should be approached with caution.

For versions prior to the fixed version, there is no information about a newer version that contains a fix for this vulnerability.