net: remove WARN_ON_ONCE() from sk_mc_loop() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/97133c4d42654578fab95abe47359ebe784dde18
- https://git.kernel.org/stable/c/f625c742b33dc137c209dd13d1c5f12b1c18d71c
- https://git.kernel.org/stable/c/ad7fa2f411cb30f63d6725f111be134064cdb718
- https://git.kernel.org/stable/c/d2adc4e80b29e58b5162ae09f0f657a215806c8c
- https://git.kernel.org/stable/c/ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe
- https://git.kernel.org/stable/c/c8f256dc849205ccb2bd78bd99a3497b972b44e0
- https://git.kernel.org/stable/c/0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f
- https://git.kernel.org/stable/c/b8a39a09ae4eaae04309e1e38ed6a1101d967496
European references
- ENISA EUVD · EUVD-2026-70337
- GCVE · GCVE-0-2026-80733
CERT-FR advisories
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < 97133c4d42654578fab95abe47359ebe784dde18 ; affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < f625c742b33dc137c209dd13d1c5f12b1c18d71c ; affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7fa2f411cb30f63d6725f111be134064cdb718 ; affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < d2adc4e80b29e58b5162ae09f0f657a215806c8c ; affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe ; affected f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < c8f256dc849205ccb2bd78bd99a3497b972b44e0 |
| Linux · Linux | affected 4.0 ; unaffected 0 < 4.0 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.152 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |