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I. Basic Information for CVE-2026-31674
Vulnerability Information

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Vulnerability Title
netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa -
LinuxLinux 2.6.12 -
II. Public POCs for CVE-2026-31674
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III. Intelligence Information for CVE-2026-31674
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IV. Related Vulnerabilities
V. Comments for CVE-2026-31674

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