Detections
Analytics
CVE-2022-48977
medium
Description
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.
References
https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557
https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f
https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a
https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644
https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c