Debian: CVE-2022-48977: linux -- security update

Debian: CVE-2022-48977: linux -- security update

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

10/23/2024

Created

10/24/2024

Added

10/23/2024

Modified

01/30/2025

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.

Solution(s)

• debian-upgrade-linux

References

• https://attackerkb.com/topics/cve-2022-48977
• CVE - 2022-48977