VULNERABILITY

Debian: CVE-2023-52976: linux -- security update

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Debian: CVE-2023-52976: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
03/27/2025
Created
04/01/2025
Added
03/31/2025
Modified
04/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: efi: fix potential NULL deref in efi_mem_reserve_persistent When iterating on a linked list, a result of memremap is dereferenced without checking it for NULL. This patch adds a check that falls back on allocating a new page in case memremap doesn't succeed. Found by Linux Verification Center (linuxtesting.org) with SVACE. [ardb: return -ENOMEM instead of breaking out of the loop]

Solution(s)

  • debian-upgrade-linux

References

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