CVE-2022-48977 - CVE House
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Status published Medium CVE-2022-48977

can: af_can: fix NULL pointer dereference in can_rcv_filter

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
4ac1feff6ea6495cbfd336f4438a6c6d140544a6, 1a5751d58b14195f763b8c1d9ef33fb8a93e95e7, 4e096a18867a5a989b510f6999d9c6b6622e8f7b, 96340078d50a54f6a1252c62596bc44321c8bff9, 5.4.110, 5.10.28, 5.11.12, 5.12, 0, 5.4.227, 5.10.159, 5.15.83, 6.0.13, 6.1

Timeline

Official Publish: October 21st, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.