Improper Initialization Affecting kernel-64k-debug-modules-extra package, versions <0:5.14.0-284.77.1.el9_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL9-KERNEL64KDEBUGMODULESEXTRA-7651454
  • published8 Aug 2024
  • disclosed24 Jun 2024

Introduced: 24 Jun 2024

CVE-2024-38663  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-64k-debug-modules-extra to version 0:5.14.0-284.77.1.el9_2 or higher.
This issue was patched in RHSA-2024:5066.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules-extra package and not the kernel-64k-debug-modules-extra package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

blk-cgroup: fix list corruption from resetting io stat

Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted.

Fix the issue by only resetting the counter part.

CVSS Scores

version 3.1