NVD Vulnerability Detail

CVE-2022-48977

Summary	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.
Publication Date	Oct. 22, 2024, 5:15 a.m.
Registration Date	Oct. 22, 2024, 12:01 p.m.
Last Update	Oct. 26, 2024, 3:47 a.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644	Patch
2	https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f	Patch
3	https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a	Patch
4	https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557	Patch
5	https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c	Patch

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-476	NULL ポインタデリファレンス	https://cwe.mitre.org/data/definitions/476.html

JVN Vulnerability Information

Linux の Linux Kernel における NULL ポインタデリファレンスに関する脆弱性

Title	Linux の Linux Kernel における NULL ポインタデリファレンスに関する脆弱性
Summary	Linux の Linux Kernel には、NULL ポインタデリファレンスに関する脆弱性が存在します。
Possible impacts	サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Dec. 7, 2022, midnight
Registration Date	Oct. 30, 2024, 4:17 p.m.
Last Update	Oct. 30, 2024, 4:17 p.m.

Affected System

Linux

Linux Kernel 5.10.28 以上 5.10.159 未満

Linux Kernel 5.11.12 以上 5.15.83 未満

Linux Kernel 5.16 以上 6.0.13 未満

Linux Kernel 5.4.110 以上 5.4.227 未満

Linux Kernel 6.1

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2022-48977	https://www.cve.org/CVERecord?id=CVE-2022-48977
National Vulnerability Database (NVD)
2	CVE-2022-48977	https://nvd.nist.gov/vuln/detail/CVE-2022-48977

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-476	http://cwe.mitre.org/data/definitions/476.html

ベンダー情報

No	Name	URL
Kernel.org git repositories
1	can: af_can: fix NULL pointer dereference in can_rcv_filter (0acc442)	https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c
2	can: af_can: fix NULL pointer dereference in can_rcv_filter (3982652)	https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644
3	can: af_can: fix NULL pointer dereference in can_rcv_filter (c142cba)	https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a
4	can: af_can: fix NULL pointer dereference in can_rcv_filter (c42221e)	https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f
5	can: af_can: fix NULL pointer dereference in can_rcv_filter (fcc63f2)	https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557
Linux Kernel
6	Linux Kernel Archives	https://www.kernel.org

Change Log

No	Changed Details	Date of change
1	[2024年10月30日] 掲載	Oct. 30, 2024, 4:15 p.m.