mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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45 lines
2.3 KiB
JSON
45 lines
2.3 KiB
JSON
{
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"id": "CVE-2021-47567",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-05-24T15:15:21.837",
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"lastModified": "2024-11-21T06:36:34.383",
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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\npowerpc/32: Fix hardlockup on vmap stack overflow\n\nSince the commit c118c7303ad5 (\"powerpc/32: Fix vmap stack - Do not\nactivate MMU before reading task struct\") a vmap stack overflow\nresults in a hard lockup. This is because emergency_ctx is still\naddressed with its virtual address allthough data MMU is not active\nanymore at that time.\n\nFix it by using a physical address instead."
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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: powerpc/32: corrige el bloqueo f\u00edsico en el desbordamiento de la pila de vmap Desde El commit c118c7303ad5 (\"powerpc/32: corrige la pila de vmap - No activar MMU antes de leer la estructura de la tarea\") un desbordamiento de la pila de vmap resulta en un bloqueo duro. Esto se debe a que Emergency_ctx todav\u00eda se aborda con su direcci\u00f3n virtual, aunque la MMU de datos ya no est\u00e9 activa en ese momento. Solucionarlo utilizando una direcci\u00f3n f\u00edsica en su lugar."
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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/5bb60ea611db1e04814426ed4bd1c95d1487678e",
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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/c4e3ff8b8b1d54f0c755670174c453b06e17114b",
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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/dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7",
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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/5bb60ea611db1e04814426ed4bd1c95d1487678e",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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},
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{
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"url": "https://git.kernel.org/stable/c/c4e3ff8b8b1d54f0c755670174c453b06e17114b",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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},
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{
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"url": "https://git.kernel.org/stable/c/dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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}
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]
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} |