mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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33 lines
2.7 KiB
JSON
33 lines
2.7 KiB
JSON
{
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"id": "CVE-2024-57932",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2025-01-21T12:15:26.837",
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"lastModified": "2025-01-21T12:15:26.837",
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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\ngve: guard XDP xmit NDO on existence of xdp queues\n\nIn GVE, dedicated XDP queues only exist when an XDP program is installed\nand the interface is up. As such, the NDO XDP XMIT callback should\nreturn early if either of these conditions are false.\n\nIn the case of no loaded XDP program, priv->num_xdp_queues=0 which can\ncause a divide-by-zero error, and in the case of interface down,\nnum_xdp_queues remains untouched to persist XDP queue count for the next\ninterface up, but the TX pointer itself would be NULL.\n\nThe XDP xmit callback also needs to synchronize with a device\ntransitioning from open to close. This synchronization will happen via\nthe GVE_PRIV_FLAGS_NAPI_ENABLED bit along with a synchronize_net() call,\nwhich waits for any RCU critical sections at call-time to complete."
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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: gve: guard XDP xmit NDO on existing xdp queues En GVE, las colas XDP dedicadas solo existen cuando se instala un programa XDP y la interfaz est\u00e1 activa. Como tal, la devoluci\u00f3n de llamada NDO XDP XMIT debe regresar temprano si alguna de estas condiciones es falsa. En el caso de que no haya un programa XDP cargado, priv->num_xdp_queues=0 que puede causar un error de divisi\u00f3n por cero, y en el caso de que la interfaz est\u00e9 inactiva, num_xdp_queues permanece intacto para persistir el conteo de colas XDP para la siguiente interfaz activa, pero el puntero TX en s\u00ed ser\u00eda NULL. La devoluci\u00f3n de llamada XDP xmit tambi\u00e9n necesita sincronizarse con un dispositivo que est\u00e9 pasando de abierto a cerrado. Esta sincronizaci\u00f3n ocurrir\u00e1 a trav\u00e9s del bit GVE_PRIV_FLAGS_NAPI_ENABLED junto con una llamadasynchronous_net(), que espera a que se completen las secciones cr\u00edticas de RCU en el momento de la llamada."
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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/35f44eed5828cf1bc7e760d1993ed8549ba41c7b",
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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/cbe9eb2c39d09f3c8574febcfa39d8c09d0c7cb5",
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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/ff7c2dea9dd1a436fc79d6273adffdcc4a7ffea3",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |