Out-of-bounds Read Affecting kernel-rt-debug-modules-core package, versions <0:5.14.0-284.79.1.rt14.364.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTDEBUGMODULESCORE-7731784
  • published21 Aug 2024
  • disclosed19 Jun 2024

Introduced: 19 Jun 2024

CVE-2024-38556  (opens in a new tab)
CWE-125  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:9 kernel-rt-debug-modules-core to version 0:5.14.0-284.79.1.rt14.364.el9_2 or higher.
This issue was patched in RHSA-2024:5365.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-core package and not the kernel-rt-debug-modules-core 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:

net/mlx5: Add a timeout to acquire the command queue semaphore

Prevent forced completion handling on an entry that has not yet been assigned an index, causing an out of bounds access on idx = -22. Instead of waiting indefinitely for the sem, blocking flow now waits for index to be allocated or a sem acquisition timeout before beginning the timer for FW completion.

Kernel log example: mlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion

CVSS Scores

version 3.1