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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-45873

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic skips anonymous set checks on start elements for this reason. However, it is possible to add intervals that overlap to this anonymous where two start elements with the same, eg. A-B, A-C where C < B. start end A B start end A C Restore the check on overlapping start elements to report an overlap.

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

  • 4aacf3d78424293e318c616016865380b37b9cc5 to < 7ca5813e1b21ef300e04593f47b073ef3217aac6affected
  • 2bf1435fa19d2c58054391b3bba40d5510a5758c to < 029e5f6a95e905b12d6bc20421be32a01e0eb311affected
  • 318cb24a4c3fce8140afaf84e4d45fcb76fb280b to < f1381ce0a1dd013610985e1c4260908163a427dfaffected
  • c9e6978e2725a7d4b6cd23b2facd3f11422c0643 to < f1535d56fc3f6c625b7e0559c006bd0318791bb1affected
  • c9e6978e2725a7d4b6cd23b2facd3f11422c0643 to < 05feaf826390fd16f1deb89dd9412def3b2a280faffected
  • c9e6978e2725a7d4b6cd23b2facd3f11422c0643 to < dad14d22dff1a191612acb98facceb303d0524a2affected
  • c9e6978e2725a7d4b6cd23b2facd3f11422c0643 to < e6497e06a102870803a59570d75ed2c36d7e11b3affected
  • c9e6978e2725a7d4b6cd23b2facd3f11422c0643 to < 4780ec142cbb24b794129d3080eee5cac2943ffcaffected
  • 7ab87a326f20c52ff4d9972052d085be951c704baffected
  • 181859bdfb9734aca449512fccaee4cacce64aedaffected
  • 5.10.166 to < 5.10.252affected
  • 5.15.91 to < 5.15.202affected
  • 6.1.9 to < 6.1.165affected
  • 4.19.316 to < 4.20affected
  • 5.4.262 to < 5.5affected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 5.10.252 to ≤ 5.10.*unaffected
  • 5.15.202 to ≤ 5.15.*unaffected
  • 6.1.165 to ≤ 6.1.*unaffected
  • 6.6.128 to ≤ 6.6.*unaffected
  • 6.12.75 to ≤ 6.12.*unaffected
  • 6.18.14 to ≤ 6.18.*unaffected
  • 6.19.4 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References