CVE-2025-68762
In the Linux kernel, the following vulnerability has been resolved: net: netpoll: initialize work queue before error checks Prevent a kernel warning when netconsole se…
Published Jan 5, 2026 · updated Oct 14, 2026
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 IFF_DISABLE_NETPOLL flag. The warning (at kernel/workqueue.c:4242 in __flush_work) occurs because the cleanup path tries to cancel an uninitialized work queue. When __netpoll_setup() encounters a device with IFF_DISABLE_NETPOLL, it fails early and calls skb_pool_flush() for cleanup. This function calls cancel_work_sync(&np->refill_wq), but refill_wq hasn't been initialized yet, triggering the warning. Move INIT_WORK() 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.
Code
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Timeline
Detection, updates, and resolution for this record.
Jan 5, 2026 · NIST NVD
Detected
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 IFF_DISABLE_NETPOLL flag. The warning (at kernel/workqueue.c:4242 in __flush_work) occurs because the cleanup path tries to cancel an uninitialized work queue. When __netpoll_setup() encounters a device with
Oct 14, 2026 · NIST NVD
Updated
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 IFF_DISABLE_NETPOLL flag. The warning (at kernel/workqueue.c:4242 in __flush_work) occurs because the cleanup path tries to cancel an uninitialized work queue. When __netpoll_setup() encounters a device with
Sources
- CVE.orgVulnerability recordCVE-2025-68762
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-68762
30-day exploitation probability 0.2%
first.org - NIST NVDVulnerability recordCVE-2025-68762
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 IFF_DISABLE_NETPOLL flag. The warning (at kernel/workqueue.c:4242 in __flush_work) oc
nvd.nist.gov