Incorrect Check of Function Return Value Affecting kernel-debuginfo package, versions <1:6.1.166-197.305.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELDEBUGINFO-16709059
  • published16 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

NewCVE-2026-43124  (opens in a new tab)
CWE-253  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-debuginfo to version 1:6.1.166-197.305.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1544.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo package and not the kernel-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

pstore: ram_core: fix incorrect success return when vmap() fails

In persistent_ram_vmap(), vmap() may return NULL on failure.

If offset is non-zero, adding offset_in_page(start) causes the function to return a non-NULL pointer even though the mapping failed. persistent_ram_buffer_map() therefore incorrectly returns success.

Subsequent access to prz->buffer may dereference an invalid address and cause crashes.

Add proper NULL checking for vmap() failures.

CVSS Base Scores

version 3.1