CVE-2026-74725 (GCVE-0-2026-74725)
Vulnerability from cvelistv5
Published
2026-08-22 15:33
Modified
2026-10-16 19:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 937317c7c1097aa878a5000e3aab616eb5c590c0
Version: 937317c7c1097aa878a5000e3aab616eb5c590c0
Version: 937317c7c1097aa878a5000e3aab616eb5c590c0
Version: 937317c7c1097aa878a5000e3aab616eb5c590c0
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