CVE-2026-45873
netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 4aacf3d78424293e318c616016865380b37b9cc5; < 7ca5813e1b21ef300e04593f47b073ef3217aac6 (affected, git) ≥ 2bf1435fa19d2c58054391b3bba40d5510a5758c; < 029e5f6a95e905b12d6bc20421be32a01e0eb311 (affected, git) ≥ 318cb24a4c3fce8140afaf84e4d45fcb76fb280b; < f1381ce0a1dd013610985e1c4260908163a427df (affected, git) ≥ c9e6978e2725a7d4b6cd23b2facd3f11422c0643; < f1535d56fc3f6c625b7e0559c006bd0318791bb1 (affected, git) ≥ c9e6978e2725a7d4b6cd23b2facd3f11422c0643; < 05feaf826390fd16f1deb89dd9412def3b2a280f (affected, git) ≥ c9e6978e2725a7d4b6cd23b2facd3f11422c0643; < dad14d22dff1a191612acb98facceb303d0524a2 (affected, git) ≥ c9e6978e2725a7d4b6cd23b2facd3f11422c0643; < e6497e06a102870803a59570d75ed2c36d7e11b3 (affected, git) ≥ c9e6978e2725a7d4b6cd23b2facd3f11422c0643; < 4780ec142cbb24b794129d3080eee5cac2943ffc (affected, git) 7ab87a326f20c52ff4d9972052d085be951c704b (affected, git) 181859bdfb9734aca449512fccaee4cacce64aed (affected, git) ≥ 5.10.166; < 5.10.252 (affected, semver) ≥ 5.15.91; < 5.15.202 (affected, semver) ≥ 6.1.9; < 6.1.165 (affected, semver) ≥ 4.19.316; < 4.20 (affected, semver) ≥ 5.4.262; < 5.5 (affected, semver) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
6.2 (affected) ≥ 0; < 6.2 (unaffected, semver) ≥ 5.10.252; ≤ 5.10.* (unaffected, semver) ≥ 5.15.202; ≤ 5.15.* (unaffected, semver) ≥ 6.1.165; ≤ 6.1.* (unaffected, semver) ≥ 6.6.128; ≤ 6.6.* (unaffected, semver) ≥ 6.12.75; ≤ 6.12.* (unaffected, semver) ≥ 6.18.14; ≤ 6.18.* (unaffected, semver) ≥ 6.19.4; ≤ 6.19.* (unaffected, semver) ≥ 7.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/7ca5813e1b21ef300e04593f47b073ef3217aac6CNA: Linux
- https://git.kernel.org/stable/c/029e5f6a95e905b12d6bc20421be32a01e0eb311CNA: Linux
- https://git.kernel.org/stable/c/f1381ce0a1dd013610985e1c4260908163a427dfCNA: Linux
- https://git.kernel.org/stable/c/f1535d56fc3f6c625b7e0559c006bd0318791bb1CNA: Linux
- https://git.kernel.org/stable/c/05feaf826390fd16f1deb89dd9412def3b2a280fCNA: Linux
- https://git.kernel.org/stable/c/dad14d22dff1a191612acb98facceb303d0524a2CNA: Linux
- https://git.kernel.org/stable/c/e6497e06a102870803a59570d75ed2c36d7e11b3CNA: Linux
- https://git.kernel.org/stable/c/4780ec142cbb24b794129d3080eee5cac2943ffcCNA: Linux
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