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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439cPatch
- https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644Patch
- https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462aPatch
- https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6fPatch
- https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.