Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tp_meter: avoid use of uninit sender vars batadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the BATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it proceeds to read sender-only members that were never initialized, leading to undefined behavior. This can be triggered when a node that is currently acting as a receiver in an ongoing tp_meter session receives a malicious ACK packet. Guard against this by checking tp_vars->role immediately after the lookup and bailing out if it is not BATADV_TP_SENDER, before any of those members are accessed.
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
33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 0e388af04b3958b178a1b979527f93eb46ea1feeaffected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 1a21c055f66e78973712a4a1be2a554f1ee2e4f4affected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 9884c9c02d3c90e9215db3c5128f59045d20ae91affected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 53f931e0146ae5bdab4cba302646827d06b3794baffected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < ecdaa3e4d91040206afe21bc8a0d1198a0971ff3affected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < dc2ae5fbd2dadc26735092f140b246841d969a11affected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 85397e48afe6be83ffca5ad3f4792296bfc81d3daffected33a3bb4a3345bb511f9c69c913da95d4693e2a4e to < 6c65cf23d4c6170fcf5714c32aa64689718cb142affected
Linux Linux
Default version status: affected
4.8affected0 to < 4.8unaffected5.10.258 to ≤ 5.10.*unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.142 to ≤ 6.6.*unaffected6.12.92 to ≤ 6.12.*unaffected6.18.34 to ≤ 6.18.*unaffected7.0.11 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0e388af04b3958b178a1b979527f93eb46ea1fee ↗
- https://git.kernel.org/stable/c/1a21c055f66e78973712a4a1be2a554f1ee2e4f4 ↗
- https://git.kernel.org/stable/c/9884c9c02d3c90e9215db3c5128f59045d20ae91 ↗
- https://git.kernel.org/stable/c/53f931e0146ae5bdab4cba302646827d06b3794b ↗
- https://git.kernel.org/stable/c/ecdaa3e4d91040206afe21bc8a0d1198a0971ff3 ↗
- https://git.kernel.org/stable/c/dc2ae5fbd2dadc26735092f140b246841d969a11 ↗
- https://git.kernel.org/stable/c/85397e48afe6be83ffca5ad3f4792296bfc81d3d ↗
- https://git.kernel.org/stable/c/6c65cf23d4c6170fcf5714c32aa64689718cb142 ↗