CVE-2026-68387
- Source
- https://cve.org/CVERecord?id=CVE-2026-68387
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68387.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-68387
- Downstream
- Published
- 2026-08-10T12:04:06Z
- Modified
- 2026-08-18T03:31:19Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- can: raw: add locking for raw flags bitfield
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
can: raw: add locking for raw flags bitfield
With commit 890e5198a6e5 ("can: raw: use bitfields to store flags in struct raw_sock") the formerly separate integer values have been integrated into a single bitfield. This led to a read-modify-write operation when changing a flag in raw_setsockopt() which now needs a locking to prevent concurrent access.
Instead of adding a lock/unlock hell in each of the flag manipulations this patch introduces a wrapper for a new raw_setsockopt_locked() function analogue to the isotp_setsockopt_locked approach in net/can/isotp.c
[mkl: use Closes tag instead of Link]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68387.json" }- References
-
- https://git.kernel.org/stable/c/00ba4bf8798242253fefc1fa6a78db1d445fd024
- https://git.kernel.org/stable/c/1e5185c090589f4146d728ab36417d8a5419f127
- https://git.kernel.org/stable/c/57791aab1129c9405f84bb0882de58967d8b44cd
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68387.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68387
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git