CVE-2025-68762

A kernel warning vulnerability was found in the Linux kernel's netpoll subsystem. When netconsole setup fails on devices with the IFF_DISABLE_NETPOLL flag, the cleanup path calls cancel_work_sync() on an uninitialized work queue. This triggers a kernel warning at workqueue.c due to attempting to flush an uninitialized work structure.

This issue produces a kernel warning message but does not result in a crash or system instability. It occurs only during failed netconsole initialization on devices that explicitly disable netpoll functionality. The warning is a defensive check in the workqueue code and has no security impact beyond log noise.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.