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NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers  (opens in a new tab)

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0.01% (1st percentile)

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  • Snyk IDSNYK-RHEL9-KERNELCROSSHEADERS-11993124
  • published18 Aug 2025
  • disclosed17 Sept 2023
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Introduced: 17 Sep 2023

CVE-2023-42754  (opens in a new tab)
CWE-476  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL.

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.