Missing Release of Resource after Effective Lifetime Affecting kernel6.12-libbpf-debuginfo package, versions <1:6.12.79-101.147.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (7th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612LIBBPFDEBUGINFO-16734716
  • published18 May 2026
  • disclosed8 May 2026

Introduced: 8 May 2026

NewCVE-2026-43393  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-libbpf-debuginfo to version 1:6.12.79-101.147.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1594.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-libbpf-debuginfo package and not the kernel6.12-libbpf-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:

btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()

Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

CVSS Base Scores

version 3.1