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CVE-2024-50060

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

io_uring: check if we need to reschedule during overflow flush

In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while.

Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: check if we need to reschedule during overflow flush\n\nIn terms of normal application usage, this list will always be empty.\nAnd if an application does overflow a bit, it'll have a few entries.\nHowever, nothing obviously prevents syzbot from running a test case\nthat generates a ton of overflow entries, and then flushing them can\ntake quite a while.\n\nCheck for needing to reschedule while flushing, and drop our locks and\ndo so if necessary. There's no state to maintain here as overflows\nalways prune from head-of-list, hence it's fine to drop and reacquire\nthe locks at the end of the loop."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: comprobar si necesitamos reprogramar durante el vaciado de desbordamiento En términos de uso normal de la aplicación, esta lista siempre estará vacía. Y si una aplicación se desborda un poco, tendrá algunas entradas. Sin embargo, obviamente nada impide que syzbot ejecute un caso de prueba que genere un montón de entradas de desbordamiento, y luego vaciarlas puede llevar bastante tiempo. Verifique la necesidad de reprogramar durante el vaciado y elimine nuestros bloqueos y hágalo si es necesario. No hay ningún estado que mantener aquí, ya que los desbordamientos siempre se podan desde el principio de la lista, por lo tanto, está bien eliminar y volver a adquirir los bloqueos al final del bucle."
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