CVE-2026-31674

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.

References

• https://git.kernel.org/stable/c/13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa
• https://git.kernel.org/stable/c/29ea965a1353bc8303877422f79c8211e9ba9c55
• https://git.kernel.org/stable/c/9d3f027327c2fa265f7f85ead41294792c3296ed
• https://git.kernel.org/stable/c/a28ebf6f99de270d6338ccdc3b49f3e818f99b7b
• https://git.kernel.org/stable/c/af9b7e2b765966457f4ec23be5bd34a141f89574