gsd-2023-52615
Vulnerability from gsd
Modified
2024-03-07 06:01
Details
In the Linux kernel, the following vulnerability has been resolved:
hwrng: core - Fix page fault dead lock on mmap-ed hwrng
There is a dead-lock in the hwrng device read path. This triggers
when the user reads from /dev/hwrng into memory also mmap-ed from
/dev/hwrng. The resulting page fault triggers a recursive read
which then dead-locks.
Fix this by using a stack buffer when calling copy_to_user.
Aliases
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"remediation": "unknown",
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"id": "GSD-2023-52615",
"modified": "2024-03-07T06:01:45.255810Z",
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"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hwrng: core: soluciona el bloqueo de falla de p\u00e1gina en mmap-ed hwrng Hay un bloqueo en la ruta de lectura del dispositivo hwrng. Esto se activa cuando el usuario lee desde /dev/hwrng en la memoria y tambi\u00e9n realiza mmap-ed desde /dev/hwrng. El error de p\u00e1gina resultante desencadena una lectura recursiva que luego se bloquea. Solucione este problema utilizando un b\u00fafer de pila al llamar a copy_to_user."
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"id": "CVE-2023-52615",
"lastModified": "2024-03-18T12:38:25.490",
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"published": "2024-03-18T11:15:08.797",
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