Description
In the Linux kernel, the following vulnerability has been resolved: ip_vti: fix potential slab-use-after-free in decode_session6 When ip_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ip_vti device sends IPv6 packets. As commit f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.") showed, xfrm_decode_session was originally intended only for the receive path. IP6CB(skb)->nhoff is not set during transmission. Therefore, set the cb field in the skb to 0 before sending packets.
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
f855691975bb06373a98711e4cfe2c224244b536 to < 82fb41c5de243e7dfa90f32ca58e35adaff56c1daffectedf855691975bb06373a98711e4cfe2c224244b536 to < 7dfe23659f3677c08a60a0056cda2d91a79c15caaffectedf855691975bb06373a98711e4cfe2c224244b536 to < d34c30442d5e53a33cde79ca163320dbe2432cbdaffectedf855691975bb06373a98711e4cfe2c224244b536 to < 0b4d69539fdea138af2befe08893850c89248068affectedf855691975bb06373a98711e4cfe2c224244b536 to < e1e04cc2ef2c0c0866c19f5627149a76c2baae32affectedf855691975bb06373a98711e4cfe2c224244b536 to < 2b05bf5dc437f7891dd409a3eaf5058459391c7aaffectedf855691975bb06373a98711e4cfe2c224244b536 to < 78e397a43e1c47321a4679cc49a6c4530bf820b9affectedf855691975bb06373a98711e4cfe2c224244b536 to < 6018a266279b1a75143c7c0804dd08a5fc4c3e0baffected
Linux Linux
Default version status: affected
3.19affected0 to < 3.19unaffected4.14.324 to ≤ 4.14.*unaffected4.19.293 to ≤ 4.19.*unaffected5.4.255 to ≤ 5.4.*unaffected5.10.192 to ≤ 5.10.*unaffected5.15.128 to ≤ 5.15.*unaffected6.1.47 to ≤ 6.1.*unaffected6.4.12 to ≤ 6.4.*unaffected6.5 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/82fb41c5de243e7dfa90f32ca58e35adaff56c1d ↗
- https://git.kernel.org/stable/c/7dfe23659f3677c08a60a0056cda2d91a79c15ca ↗
- https://git.kernel.org/stable/c/d34c30442d5e53a33cde79ca163320dbe2432cbd ↗
- https://git.kernel.org/stable/c/0b4d69539fdea138af2befe08893850c89248068 ↗
- https://git.kernel.org/stable/c/e1e04cc2ef2c0c0866c19f5627149a76c2baae32 ↗
- https://git.kernel.org/stable/c/2b05bf5dc437f7891dd409a3eaf5058459391c7a ↗
- https://git.kernel.org/stable/c/78e397a43e1c47321a4679cc49a6c4530bf820b9 ↗
- https://git.kernel.org/stable/c/6018a266279b1a75143c7c0804dd08a5fc4c3e0b ↗