Description
In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmp_build_probe() First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL. if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list) Second problem is a read from dev->ip6_ptr with no NULL check: if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list)) Use the correct RCU API to fix these. v2: add missing include <net/addrconf.h>
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d329ea5bd8845f0b196bf41b18b6173340d6e0e4 to < 23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401affectedd329ea5bd8845f0b196bf41b18b6173340d6e0e4 to < 599c9ad5e1d43f5c12d869f5fd406ba5d8c55270affectedd329ea5bd8845f0b196bf41b18b6173340d6e0e4 to < d68dc711d84fdcf698e5d45308c3ddeede586350affectedd329ea5bd8845f0b196bf41b18b6173340d6e0e4 to < 3e2979bf080c40da4f7c93aff8575ab8bc62b767affectedd329ea5bd8845f0b196bf41b18b6173340d6e0e4 to < c58e88d49097bd12dfcfef4f075b43f5d5830941affected
Linux Linux
Default version status: affected
5.13affected0 to < 5.13unaffected5.15.158 to ≤ 5.15.*unaffected6.1.90 to ≤ 6.1.*unaffected6.6.30 to ≤ 6.6.*unaffected6.8.9 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401 ↗
- https://git.kernel.org/stable/c/599c9ad5e1d43f5c12d869f5fd406ba5d8c55270 ↗
- https://git.kernel.org/stable/c/d68dc711d84fdcf698e5d45308c3ddeede586350 ↗
- https://git.kernel.org/stable/c/3e2979bf080c40da4f7c93aff8575ab8bc62b767 ↗
- https://git.kernel.org/stable/c/c58e88d49097bd12dfcfef4f075b43f5d5830941 ↗