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https://github.com/fkie-cad/nvd-json-data-feeds.git
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41 lines
2.4 KiB
JSON
41 lines
2.4 KiB
JSON
{
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"id": "CVE-2024-38580",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-06-19T14:15:18.057",
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"lastModified": "2024-06-20T12:44:01.637",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nepoll: be better about file lifetimes\n\nepoll can call out to vfs_poll() with a file pointer that may race with\nthe last 'fput()'. That would make f_count go down to zero, and while\nthe ep->mtx locking means that the resulting file pointer tear-down will\nbe blocked until the poll returns, it means that f_count is already\ndead, and any use of it won't actually get a reference to the file any\nmore: it's dead regardless.\n\nMake sure we have a valid ref on the file pointer before we call down to\nvfs_poll() from the epoll routines."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: epoll: mejore la duraci\u00f3n de los archivos epoll puede llamar a vfs_poll() con un puntero de archivo que puede competir con el \u00faltimo 'fput()'. Eso har\u00eda que f_count bajara a cero, y aunque el bloqueo ep->mtx significa que el desmontaje del puntero del archivo resultante se bloquear\u00e1 hasta que regrese la encuesta, significa que f_count ya est\u00e1 muerto y no se podr\u00e1 utilizar. De hecho, ya no obtengo una referencia al archivo: est\u00e1 muerto de todos modos. Aseg\u00farese de tener una referencia v\u00e1lida en el puntero del archivo antes de llamar a vfs_poll() desde las rutinas de epoll."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/16e3182f6322575eb7c12e728ad3c7986a189d5d",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/4efaa5acf0a1d2b5947f98abb3acf8bfd966422b",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f65f4defe4e23659275ce5153541cd4f76ce2d2",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/559214eb4e5c3d05e69428af2fae2691ba1eb784",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/cbfd1088e24ec4c1199756a37cb8e4cd0a4b016e",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |