CVE-2026-23083 (GCVE-0-2026-23083)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:33
VLAI?
Title
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
Summary
In the Linux kernel, the following vulnerability has been resolved:
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
fou_udp_recv() has the same problem mentioned in the previous
patch.
If FOU_ATTR_IPPROTO is set to 0, skb is not freed by
fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().
Let's forbid 0 for FOU_ATTR_IPPROTO.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
23461551c00628c3f3fe9cf837bf53cf8f212b63 , < c7498f9bc390479ccfad7c7f2332237ff4945b03
(git)
Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < 611ef4bd9c73d9e6d87bed57a635ff1fdd8c91ea (git) Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < 6e983789b7588ee59cbf303583546c043bad8e19 (git) Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < 1cc98b8887cabb1808d2f4a37cd10a7be7574771 (git) Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < b7db31a52c3862a1a32202a273a4c32e7f5f4823 (git) Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < 9b75dff8446ec871030d8daf5a69e74f5fe8b956 (git) Affected: 23461551c00628c3f3fe9cf837bf53cf8f212b63 , < 7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5 (git) |
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{
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"cveId": "CVE-2026-23083",
"datePublished": "2026-02-04T16:08:07.561Z",
"dateReserved": "2026-01-13T15:37:45.960Z",
"dateUpdated": "2026-02-06T16:33:02.855Z",
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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