PT-2026-35134 · Linux · Linux

Published 2026-04-25 · Updated 2026-04-25 · CVE-2026-31674

Mitre

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.

Related Identifiers

CVE-2026-31674

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-31674 · Security Note
• https://git.kernel.org/stable/c/9d3f027327c2fa265f7f85ead41294792c3296ed · Note
• https://git.kernel.org/stable/c/a28ebf6f99de270d6338ccdc3b49f3e818f99b7b · Note
• https://git.kernel.org/stable/c/af9b7e2b765966457f4ec23be5bd34a141f89574 · Note
• https://git.kernel.org/stable/c/d8795fde1f78669a87c87ac29fceab2f104daa8c · Note
• https://git.kernel.org/stable/c/13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa · Note
• https://git.kernel.org/stable/c/29ea965a1353bc8303877422f79c8211e9ba9c55 · Note
• https://git.kernel.org/stable/c/c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59 · Note
• https://git.kernel.org/stable/c/ded71f5684df16fa645cca5bf4fe6b0cd8a46119 · Note