Race Condition Affecting bpftool package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-RHEL8-BPFTOOL-10296307
  • published3 Jun 2025
  • disclosed3 Sept 2021

Introduced: 3 Sep 2021

CVE-2021-40490  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in RHSA-2022:1988.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.

CVSS Base Scores

version 3.1