NULL Pointer Dereference Affecting kernel-livepatch-6.1.102-108.177 package, versions <0:1.0-0.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELLIVEPATCH61102108177-8494956
  • published11 Dec 2024
  • disclosed29 Jul 2024

Introduced: 29 Jul 2024

CVE-2024-41077  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-livepatch-6.1.102-108.177 to version 0:1.0-0.amzn2023 or higher.
This issue was patched in ALAS2023-2024-679.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6.1.102-108.177 package and not the kernel-livepatch-6.1.102-108.177 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:

null_blk: fix validation of block size

Block size should be between 512 and PAGE_SIZE and be a power of 2. The current check does not validate this, so update the check.

Without this patch, null_blk would Oops due to a null pointer deref when loaded with bs=1536 [1].

[axboe: remove unnecessary braces and != 0 check]

CVSS Scores

version 3.1