CVE-2023-52893

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.

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2024-08-21

Last modified

2026-05-11

Weaknesses

CWE-476

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a
• https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393
• https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8
• https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd
• https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2
• https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b
• https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5