CVE-2026-80733
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < 97133c4d42654578fab95abe47359ebe784dde18 | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < f625c742b33dc137c209dd13d1c5f12b1c18d71c | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7fa2f411cb30f63d6725f111be134064cdb718 | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < d2adc4e80b29e58b5162ae09f0f657a215806c8c | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < c8f256dc849205ccb2bd78bd99a3497b972b44e0 | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < 0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f | affected |
| Linux | Linux | f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90 < b8a39a09ae4eaae04309e1e38ed6a1101d967496 | affected |
| Linux | Linux | c91f81773cd4bbebfe744e9ab30a7ce093f9b930 | affected |
| Linux | Linux | c8c30b2b17f2133e953850c547e3902c3a3d80e2 | affected |
| Linux | Linux | 3fe207e4637a2e792c46a08666aa722f77d7f8f7 | affected |
| Linux | Linux | 3.14.40 < 3.15 | affected |
| Linux | Linux | 3.18.13 < 3.19 | affected |
| Linux | Linux | 3.19.6 < 3.20 | affected |
| Linux | Linux | 4.0 | affected |
| Linux | Linux | 0 < 4.0 | unaffected |
| Linux | Linux | 5.10.265 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.216 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.183 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.152 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.104 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.45 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.9 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
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
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