CVE-2026-74725

In the Linux kernel, the following vulnerability has been resolved: enic: fix tx_hang_reset use-after-free on device removal enic_remove() cancels the reset and change_mtu_work items but does not cancel tx_hang_reset. A TX timeout that fires while the device is being removed can schedule enic_tx_hang_reset() so that it runs after free_netdev(), resulting in a use-after-free. cancel_work_sync() alone is not sufficient here: the still-live watchdog and notify paths can re-schedule these work items in the window between the cancel and unregister_netdev(). Use disable_work_sync(), which cancels the work and blocks any subsequent schedule_work() from requeuing it, and apply it to the reset and change_mtu_work items as well so the same requeue race is closed for all teardown work.

• https://git.kernel.org/stable/c/4f3464fc6c1f26afc504fd525c574f2bc14c9d42
• https://git.kernel.org/stable/c/8619865f34fb3b130b567855382a5c4aadd522b9
• https://git.kernel.org/stable/c/e506e704b74748ffd0e1c92a7453ca2a959f832b
• https://git.kernel.org/stable/c/ec680ea4ba1bca92a767fb7e7869758bfdd886e3

Published

Aug 22, 2026

Last Modified

Oct 16, 2026

Status

Received

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