CVE-2022-48977

In the Linux kernel, the following vulnerability has been resolved: can: af_can: fix NULL pointer dereference in can_rcv_filter Analogue to commit 8aa59e355949 ("can: af_can: fix NULL pointer dereference in can_rx_register()") we need to check for a missing initialization of ml_priv in the receive path of CAN frames. Since commit 4e096a18867a ("net: introduce CAN specific pointer in the struct net_device") the check for dev->type to be ARPHRD_CAN is not sufficient anymore since bonding or tun netdevices claim to be CAN devices but do not initialize ml_priv accordingly.

• linux linux kernel (>= 5.4.110 < 5.4.227) • linux linux kernel (>= 5.10.28 < 5.10.159) • linux linux kernel (>= 5.11.12 < 5.15.83) • linux linux kernel (>= 5.16 < 6.0.13) • linux linux kernel 6.1