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https://github.com/fkie-cad/nvd-json-data-feeds.git
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28 lines
2.7 KiB
JSON
28 lines
2.7 KiB
JSON
{
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"id": "CVE-2024-27079",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-05-01T13:15:51.443",
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"lastModified": "2024-05-01T19:50:25.633",
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"vulnStatus": "Awaiting Analysis",
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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\niommu/vt-d: Fix NULL domain on device release\n\nIn the kdump kernel, the IOMMU operates in deferred_attach mode. In this\nmode, info->domain may not yet be assigned by the time the release_device\nfunction is called. It leads to the following crash in the crash kernel:\n\n BUG: kernel NULL pointer dereference, address: 000000000000003c\n ...\n RIP: 0010:do_raw_spin_lock+0xa/0xa0\n ...\n _raw_spin_lock_irqsave+0x1b/0x30\n intel_iommu_release_device+0x96/0x170\n iommu_deinit_device+0x39/0xf0\n __iommu_group_remove_device+0xa0/0xd0\n iommu_bus_notifier+0x55/0xb0\n notifier_call_chain+0x5a/0xd0\n blocking_notifier_call_chain+0x41/0x60\n bus_notify+0x34/0x50\n device_del+0x269/0x3d0\n pci_remove_bus_device+0x77/0x100\n p2sb_bar+0xae/0x1d0\n ...\n i801_probe+0x423/0x740\n\nUse the release_domain mechanism to fix it. The scalable mode context\nentry which is not part of release domain should be cleared in\nrelease_device()."
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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 resolvi\u00f3 la siguiente vulnerabilidad: iommu/vt-d: corrige el dominio NULL al lanzar el dispositivo. En el kernel kdump, IOMMU opera en modo deferred_attach. En este modo, es posible que info->dominio a\u00fan no est\u00e9 asignado cuando se llama a la funci\u00f3n release_device. Conduce al siguiente bloqueo en el kernel bloqueado: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 000000000000003c ... RIP: 0010:do_raw_spin_lock+0xa/0xa0 ... _raw_spin_lock_irqsave+0x1b/0x30 intel_iommu_release_device+0x96/0x170 +0x39/ 0xf0 __iommu_group_remove_device+0xa0/0xd0 iommu_bus_notifier+0x55/0xb0 notifier_call_chain+0x5a/0xd0 blocking_notifier_call_chain+0x41/0x60 bus_notify+0x34/0x50 device_del+0x269/0x3d0 vice+0x77/0x100 p2sb_bar+0xae/0x1d0 ... i801_probe+0x423/0x740 Uso el mecanismo release_domain para solucionarlo. La entrada de contexto del modo escalable que no forma parte del dominio de lanzamiento debe borrarse en release_device()."
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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/333fe86968482ca701c609af590003bcea450e8f",
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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/81e921fd321614c2ad8ac333b041aae1da7a1c6d",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |