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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74704 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter The sch_cake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARN_ON(1) which can be triggered by a malformed IP header in certain cases. Depending on the system configuration, this leads either to either spamming dmesg with warnings, or a panic if panic_on_warn is set. The code already correctly skips the offending packet in the branch that triggers the warning, so the WARN_ON itself doesn't really serve any purpose. So just drop it altogether to avoid the inconvenient side effects.


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/0c4882bff34558d8d53fb04c3e96da5c327c7dc8 kernel.org
https://git.kernel.org/stable/c/2504a76e5c0694e14e15562730e1339f2d9f9458 kernel.org
https://git.kernel.org/stable/c/2a33516f9ef59ad11844d4fc152f889449b5daf3 kernel.org
https://git.kernel.org/stable/c/a1ae353d8355407c1bea971d1c1af5e7f242bb7d kernel.org
https://git.kernel.org/stable/c/a4b52612004a5639c4bfc30ba93ba414b8326e2a kernel.org
https://git.kernel.org/stable/c/ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3 kernel.org
https://git.kernel.org/stable/c/c1693b7844a6c06d31a565e5a494948034dfd235 kernel.org
https://git.kernel.org/stable/c/cd2f1d9fe8a507c2dc86ad326fe221f121c47734 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74704
NVD Published Date:
08/22/2026
NVD Last Modified:
08/22/2026
Source:
kernel.org