CVE-2026-23298
- Source
- https://cve.org/CVERecord?id=CVE-2026-23298
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23298.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-23298
- Downstream
- Published
- 2026-03-25T10:26:54.830Z
- Modified
- 2026-04-14T03:47:50.215092Z
- Summary
- can: ucan: Fix infinite loop from zero-length messages
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
can: ucan: Fix infinite loop from zero-length messages
If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucanreadbulk_callback(), hanging the system. If the length is 0, just skip the message and go on to the next one.
This has been fixed in the kvaserusb driver in the past in commit 0c73772cd2b8 ("can: kvaserusb: leaf: Fix potential infinite loop in command parsers"), so there must be some broken devices out there like this somewhere.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23298.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f
- https://git.kernel.org/stable/c/1e446fd0582ad8be9f6dafb115fc2e7245f9bea7
- https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588
- https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc
- https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0
- https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23298.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23298
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9f2d3eae88d26c29d96e42983b755940d9169cd9Fixedab6f075492d37368b4c7b0df7f7fdc2b666887fcFixed13b646eec3ba1131180803f5aaf1fee23540ad8fFixedbd85f21a6219aeae4389d700c54f1799f4b814e0Fixedaa9e0a7fe5efc2f74327fd37d828e9a51d9ff588Fixedc7bc62be6c1a60bb21301692009590b1ffda91d9Fixed1e446fd0582ad8be9f6dafb115fc2e7245f9bea7