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CVE-2026-74725

enic: fix tx_hang_reset use-after-free on device removal

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 937317c7c1097aa878a5000e3aab616eb5c590c0
Version < 8619865f34fb3b130b567855382a5c4aadd522b9
Status affected
Version 937317c7c1097aa878a5000e3aab616eb5c590c0
Version < e506e704b74748ffd0e1c92a7453ca2a959f832b
Status affected
Version 937317c7c1097aa878a5000e3aab616eb5c590c0
Version < 4f3464fc6c1f26afc504fd525c574f2bc14c9d42
Status affected
Version 937317c7c1097aa878a5000e3aab616eb5c590c0
Version < ec680ea4ba1bca92a767fb7e7869758bfdd886e3
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.4
Status affected
Version 0
Version < 4.4
Status unaffected
Version <= 6.12.*
Version 6.12.104
Status unaffected
Version <= 6.18.*
Version 6.18.45
Status unaffected
Version <= 7.1.*
Version 7.1.9
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.113
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
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