CVE-2024-26933
Vulnerability from cvelistv5
Published
2024-05-01 05:17
Modified
2024-11-05 09:18
Severity ?
Summary
USB: core: Fix deadlock in port "disable" sysfs attribute
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4facc9421117ba9d8148c73771b213887fec77f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73d1589b91f2099e5f6534a8497b7c6b527e064ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9dac54f08198147f5ec0ec52fcf1bc8ac899ac05Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4d1960764d8a70318b02f15203a1be2b2554ca1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f51849833705dea5b4f9b0c8de714dd87bd6c95cPatch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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Las rutinas de devoluci\u00f3n de llamada para mostrar y almacenar para el archivo del atributo sysfs \\\"disable\\\" en port.c adquieren el bloqueo del dispositivo para el puerto. dispositivo central principal. Esto puede causar problemas si otro proceso ha bloqueado el concentrador para eliminarlo o cambiar su configuraci\u00f3n: Quitar el concentrador o cambiar su configuraci\u00f3n requiere que se elimine la interfaz del concentrador, lo que requiere que se elimine el dispositivo del puerto, y device_del() espera hasta que todo Se han devuelto devoluciones de llamadas de atributos sysfs pendientes para los puertos. El bloqueo no podr\u00e1 desbloquearse hasta entonces. Pero la rutina enable_show() o enable_store() no puede regresar hasta que haya adquirido el bloqueo. El punto muerto resultante se puede evitar llamando a sysfs_break_active_protection(). 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