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Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check() Reject rt match rules whose addrnr exceeds IP6T_RT_HOPS. rt_mt6() expects addrnr to stay within the bounds of rtinfo->addrs[]. Validate addrnr during rule installation so malformed rules are rejected before the match logic can use an out-of-range value.

PUBLISHED Reserved 2026-03-09 | Published 2026-04-25 | Updated 2026-04-27 | Assigner Linux




HIGH: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before af9b7e2b765966457f4ec23be5bd34a141f89574
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 29ea965a1353bc8303877422f79c8211e9ba9c55
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ded71f5684df16fa645cca5bf4fe6b0cd8a46119
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d8795fde1f78669a87c87ac29fceab2f104daa8c
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before a28ebf6f99de270d6338ccdc3b49f3e818f99b7b
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 9d3f027327c2fa265f7f85ead41294792c3296ed
affected

Default status
affected

2.6.12
affected

Any version before 2.6.12
unaffected

5.10.253 (semver)
unaffected

5.15.203 (semver)
unaffected

6.1.168 (semver)
unaffected

6.6.131 (semver)
unaffected

6.12.80 (semver)
unaffected

6.18.21 (semver)
unaffected

6.19.11 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa

git.kernel.org/...c/af9b7e2b765966457f4ec23be5bd34a141f89574

git.kernel.org/...c/29ea965a1353bc8303877422f79c8211e9ba9c55

git.kernel.org/...c/c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59

git.kernel.org/...c/ded71f5684df16fa645cca5bf4fe6b0cd8a46119

git.kernel.org/...c/d8795fde1f78669a87c87ac29fceab2f104daa8c

git.kernel.org/...c/a28ebf6f99de270d6338ccdc3b49f3e818f99b7b

git.kernel.org/...c/9d3f027327c2fa265f7f85ead41294792c3296ed

cve.org (CVE-2026-31674)

nvd.nist.gov (CVE-2026-31674)

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