Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f855691975bb06373a98711e4cfe2c224244b536 before 82fb41c5de243e7dfa90f32ca58e35adaff56c1d; affected f855691975bb06373a98711e4cfe2c224244b536 before 7dfe23659f3677c08a60a0056cda2d91a79c15ca; affected f855691975bb06373a98711e4cfe2c224244b536 before d34c30442d5e53a33cde79ca163320dbe2432cbd; affected f855691975bb06373a98711e4cfe2c224244b536 before 0b4d69539fdea138af2befe08893850c89248068; affected f855691975bb06373a98711e4cfe2c224244b536 before e1e04cc2ef2c0c0866c19f5627149a76c2baae32; affected f855691975bb06373a98711e4cfe2c224244b536 before 2b05bf5dc437f7891dd409a3eaf5058459391c7a; affected f855691975bb06373a98711e4cfe2c224244b536 before 78e397a43e1c47321a4679cc49a6c4530bf820b9; affected f855691975bb06373a98711e4cfe2c224244b536 before 6018a266279b1a75143c7c0804dd08a5fc4c3e0b |
| Linux / Linux | affected 3.19; unaffected 0 before 3.19; unaffected 4.14.324 through 4.14.*; unaffected 4.19.293 through 4.19.*; unaffected 5.4.255 through 5.4.*; unaffected 5.10.192 through 5.10.*; unaffected 5.15.128 through 5.15.*; unaffected 6.1.47 through 6.1.*; unaffected 6.4.12 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.
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