PT-2024-3350 · Linux+5 · Linux Kernel+5
Kim Phillips
·
Published
2024-02-02
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Updated
2025-01-07
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CVE-2024-26695
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
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:
- Function Name:
sev platform shutdown locked - Vulnerable Parameter or Variable:
psp master
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.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu