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CVE-2026-80733 Details

Description

In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE() from sk_mc_loop() sk_mc_loop() can be called for sockets that are neither AF_INET nor AF_INET6 (e.g. AF_PACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan). In such cases, sk_family is not AF_INET/AF_INET6 and sk_mc_loop() falls through the switch statement and triggers WARN_ON_ONCE(1). Non-INET sockets do not support IP_MULTICAST_LOOP or IPV6_MULTICAST_LOOP options, so loopback should default to true without generating a warning.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f	kernel.org
https://git.kernel.org/stable/c/97133c4d42654578fab95abe47359ebe784dde18	kernel.org
https://git.kernel.org/stable/c/ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe	kernel.org
https://git.kernel.org/stable/c/ad7fa2f411cb30f63d6725f111be134064cdb718	kernel.org
https://git.kernel.org/stable/c/b8a39a09ae4eaae04309e1e38ed6a1101d967496	kernel.org
https://git.kernel.org/stable/c/c8f256dc849205ccb2bd78bd99a3497b972b44e0	kernel.org
https://git.kernel.org/stable/c/d2adc4e80b29e58b5162ae09f0f657a215806c8c	kernel.org
https://git.kernel.org/stable/c/f625c742b33dc137c209dd13d1c5f12b1c18d71c	kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes