Use of Uninitialized Variable Affecting kernel-debuginfo package, versions <0:6.1.94-99.176.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.26% (50th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELDEBUGINFO-10337356
  • published11 Jun 2025
  • disclosed19 Jun 2024

Introduced: 19 Jun 2024

CVE-2024-38586  (opens in a new tab)
CWE-457  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-debuginfo to version 0:6.1.94-99.176.amzn2023 or higher.
This issue was patched in ALAS2023-2024-683.

NVD Description

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

r8169: Fix possible ring buffer corruption on fragmented Tx packets.

An issue was found on the RTL8125b when transmitting small fragmented packets, whereby invalid entries were inserted into the transmit ring buffer, subsequently leading to calls to dma_unmap_single() with a null address.

This was caused by rtl8169_start_xmit() not noticing changes to nr_frags which may occur when small packets are padded (to work around hardware quirks) in rtl8169_tso_csum_v2().

To fix this, postpone inspecting nr_frags until after any padding has been applied.

CVSS Base Scores

version 3.1