CVE-2025-68762
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-68762
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68762.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-68762
- Downstream
- Published
- 2026-01-05T09:32:34.743Z
- Modified
- 2026-01-06T03:22:00.720494Z
- Summary
- net: netpoll: initialize work queue before error checks
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: netpoll: initialize work queue before error checks
Prevent a kernel warning when netconsole setup fails on devices with IFFDISABLENETPOLL flag. The warning (at kernel/workqueue.c:4242 in _flushwork) occurs because the cleanup path tries to cancel an uninitialized work queue.
When _netpollsetup() encounters a device with IFFDISABLENETPOLL, it fails early and calls skbpoolflush() for cleanup. This function calls cancelworksync(&np->refillwq), but refillwq hasn't been initialized yet, triggering the warning.
Move INITWORK() to the beginning of _netpoll_setup(), ensuring the work queue is properly initialized before any potential failure points. This allows the cleanup path to safely cancel the work queue regardless of where the setup fails.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68762.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/760bc6ceda8e2c273c0e2018ad2595967c3dd308
- https://git.kernel.org/stable/c/a90d0dc38a10347078cca60e7495ad0648838f18
- https://git.kernel.org/stable/c/e5235eb6cfe02a51256013a78f7b28779a7740d5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68762.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68762
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
-
Introduced248f6571fd4c51531f7f8f07f186f7ae98a50afcFixeda90d0dc38a10347078cca60e7495ad0648838f18Fixed760bc6ceda8e2c273c0e2018ad2595967c3dd308Fixede5235eb6cfe02a51256013a78f7b28779a7740d5