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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74669 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ipvs: clear IPv4 options after rebasing tunnel ICMP errors ip_vs_in_icmp() rebases an skb from the outer ICMP packet to the quoted original request before passing it to icmp_send(). However, IPCB(skb)->opt still describes the outer IPv4 header. A timestamp option in the outer header can therefore leave an offset that points into the quoted transport header after the rebase. __ip_options_echo() treats a byte at that stale location as the option length and copies it into the fixed-size option storage on the __icmp_send() stack, causing a stack out-of-bounds write. Clear the stale option metadata after resetting the network header. Keep the remaining control block fields, including the ingress interface used by the ICMP response path.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/37c61b3745129cbd682c557b51345828120972e5 kernel.org
https://git.kernel.org/stable/c/384b4dae14277d369221d187e9b3af56c79d2e50 kernel.org
https://git.kernel.org/stable/c/6f46fc460e9316062bdcdf89199eb5d7a33da33b kernel.org
https://git.kernel.org/stable/c/75eec935444db4af2123e0491936f6e273d7ea00 kernel.org
https://git.kernel.org/stable/c/79ffa99202c944467e28b13b513bf2998732edff kernel.org
https://git.kernel.org/stable/c/c9413b50204738fbc429bb86bf01353c393a6c28 kernel.org
https://git.kernel.org/stable/c/e0ba936287dfe9783426aac27e5fd76fe35b38c9 kernel.org
https://git.kernel.org/stable/c/ed246dd85ebf27c1f6b7897834d40786c0ca3006 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74669
NVD Published Date:
08/22/2026
NVD Last Modified:
08/22/2026
Source:
kernel.org