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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-23083

fou: Don't allow 0 for FOU_ATTR_IPPROTO.

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < c7498f9bc390479ccfad7c7f2332237ff4945b03affected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < 611ef4bd9c73d9e6d87bed57a635ff1fdd8c91eaaffected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < 6e983789b7588ee59cbf303583546c043bad8e19affected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < 1cc98b8887cabb1808d2f4a37cd10a7be7574771affected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < b7db31a52c3862a1a32202a273a4c32e7f5f4823affected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < 9b75dff8446ec871030d8daf5a69e74f5fe8b956affected
  • 23461551c00628c3f3fe9cf837bf53cf8f212b63 to < 7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5affected

Linux Linux

Default version status: affected

  • 3.18affected
  • 0 to < 3.18unaffected
  • 5.10.249 to ≤ 5.10.*unaffected
  • 5.15.199 to ≤ 5.15.*unaffected
  • 6.1.162 to ≤ 6.1.*unaffected
  • 6.6.122 to ≤ 6.6.*unaffected
  • 6.12.68 to ≤ 6.12.*unaffected
  • 6.18.8 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References