CVE-2022-48977
can: af_can: fix NULL pointer dereference in can_rcv_filter
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 84% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 4ac1feff6ea6495cbfd336f4438a6c6d140544a6 – < 3982652957e8d79ac32efcb725450580650a8644
- affected 1a5751d58b14195f763b8c1d9ef33fb8a93e95e7 – < c42221efb1159d6a3c89e96685ee38acdce86b6f
- affected 4e096a18867a5a989b510f6999d9c6b6622e8f7b – < c142cba37de29f740a3852f01f59876af8ae462a
- affected 4e096a18867a5a989b510f6999d9c6b6622e8f7b – < fcc63f2f7ee3038d53216edd0d8291e57c752557
- affected 4e096a18867a5a989b510f6999d9c6b6622e8f7b – < 0acc442309a0a1b01bcdaa135e56e6398a49439c
- affected 96340078d50a54f6a1252c62596bc44321c8bff9
- affected 5.4.110 – < 5.4.227
- affected 5.10.28 – < 5.10.159
- affected 5.11.12 – < 5.12
- affected 5.12
- unaffected < 5.12
- unaffected 5.4.227 – ≤ 5.4.*
- unaffected 5.10.159 – ≤ 5.10.*
- unaffected 5.15.83 – ≤ 5.15.*
- unaffected 6.0.13 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (5)
- https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644 (opens in a new tab)
- https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f (opens in a new tab)
- https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a (opens in a new tab)
- https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557 (opens in a new tab)
- https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-48977)Record last updated .