CVE-2026-80733None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < 97133c4d42654578fab95abe47359ebe784dde18Linux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < f625c742b33dc137c209dd13d1c5f12b1c18d71cLinux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7fa2f411cb30f63d6725f111be134064cdb718Linux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < d2adc4e80b29e58b5162ae09f0f657a215806c8cLinux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfeLinux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < c8f256dc849205ccb2bd78bd99a3497b972b44e0Linux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < 0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1fLinux >= f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < b8a39a09ae4eaae04309e1e38ed6a1101d967496Linux c91f81773cd4bbebfe744e9ab30a7ce093f9b930Linux c8c30b2b17f2133e953850c547e3902c3a3d80e2Linux 3fe207e4637a2e792c46a08666aa722f77d7f8f7Linux >= 3.14.40 < 3.15Linux >= 3.18.13 < 3.19Linux >= 3.19.6 < 3.20Linux 4.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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