7.1
High
CVE-2026-31674 In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_rt: reject oversized addrnr in…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.0 | earliest → < 7.0 | 7.0 |
| Linux 6.19 | earliest → < 6.19.11 | 6.19.11 |
| Linux 6.18 | earliest → < 6.18.21 | 6.18.21 |
| Linux 6.12 | earliest → < 6.12.80 | 6.12.80 |
| Linux 6.6 | earliest → < 6.6.131 | 6.6.131 |
| Linux 6.1 | earliest → < 6.1.168 | 6.1.168 |
| Linux 5.15 | earliest → < 5.15.203 | 5.15.203 |
| Linux 5.10 | earliest → < 5.10.253 | 5.10.253 |
| Linux | 2.6.12 | No fix stated |
Show the 3 other branches Hide the 3 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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