Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6_rule_suppress() drops a suppressed route with ip6_rt_put_flags(), but leaves res->rt6 pointing at the released rt6_info. If no later rule supplies a replacement, fib6_rule_lookup() still sees res.rt6 and returns that stale dst to its caller. A suppressing rule can therefore leak a released route back to rt6_lookup(), and the next put hits rcuref_put_slowpath() from dst_release(). Clear res->rt6 when suppressing the route so suppressed lookups fall through to the null dst instead of reusing the released one.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 209d35ee34e25f9668c404350a1c86d914c54ffa before 90c57310e266eb94e4a80d6b15a9ca131d2e82cb; affected 8ef8a76a340ebdb2c2eea3f6fb0ebbed09a16383 before 5d29b286c9de0b309e94b9ed083aa1a2f429434f; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before 354db6243eca59e9d187ffbf8b7955b044ce84dc; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before 6d98c70fe0ba8c7708bfd5b2a5174d2086775daa; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before 9bad152c42b37499162367fe47867411e62fffa3; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before dc3ab04220667f254f4348572b2a0b3febff89fb; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before a341c091ca0bfae377747b1b59a3bd8ebe18a937; affected cdef485217d30382f3bf6448c54b4401648fe3f1 before 6aea62e433fe1b586202a5fee8b5807ce635e1d7; affected ee38eb8cf9a7323884c2b8e0adbbeb2192d31e29; affected 5.10.84 before 5.10.265; affected 5.15.7 before 5.15.216; affected 5.4.164 before 5.5 |
| Linux / Linux | affected 5.16; unaffected 0 before 5.16; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/90c57310e266eb94e4a80d6b15a9ca131d2e82cb
- https://git.kernel.org/stable/c/5d29b286c9de0b309e94b9ed083aa1a2f429434f
- https://git.kernel.org/stable/c/354db6243eca59e9d187ffbf8b7955b044ce84dc
- https://git.kernel.org/stable/c/6d98c70fe0ba8c7708bfd5b2a5174d2086775daa
- https://git.kernel.org/stable/c/9bad152c42b37499162367fe47867411e62fffa3
- https://git.kernel.org/stable/c/dc3ab04220667f254f4348572b2a0b3febff89fb
- https://git.kernel.org/stable/c/a341c091ca0bfae377747b1b59a3bd8ebe18a937
- https://git.kernel.org/stable/c/6aea62e433fe1b586202a5fee8b5807ce635e1d7
ADP enrichment
No English description supplied.
No references supplied.