CVE-2022-49845 Information

Description

In the Linux kernel the following vulnerability has been resolved:

can: j1939: j1939_send_one(): fix missing CAN header initialization

The read access to struct canxl_frame::len inside of a j1939 created skbuff revealed a missing initialization of reserved and later filled elements in struct can_frame.

This patch initializes the 8 byte CAN header with zero.

Reference

https://git.kernel.org/stable/c/2719f82ad5d8199cf5f346ea8bb3998ad5323b72 https://git.kernel.org/stable/c/3eb3d283e8579a22b81dd2ac3987b77465b2a22f https://git.kernel.org/stable/c/69e86c6268d59ceddd0abe9ae8f1f5296f316c3c https://git.kernel.org/stable/c/d0513b095e1ef1469718564dec3fb3348556d0a8 https://git.kernel.org/stable/c/f8e0edeaa0f2b860bdbbf0aafb4492533043d650