CVE-2023-52893 - CVE House
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Status published Unknown CVE-2023-52893

gsmi: fix null-deref in gsmi_get_variable

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
74c5b31c6618f01079212332b2e5f6c42f2d6307, 3.0, 0, 4.14.304, 4.19.271, 5.4.230, 5.10.165, 5.15.90, 6.1.8, 6.2

Timeline

Official Publish: August 21st, 2024
Last Modified: May 11th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.