cve-2024-26814
Vulnerability from cvelistv5
Published
2024-04-05 08:24
Modified
2024-11-05 09:16
Severity ?
EPSS score ?
Summary
vfio/fsl-mc: Block calling interrupt handler without trigger
References
Impacted products
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The interrupt handler itself is guaranteed that\ntrigger is always valid between request_irq() and free_irq(), but\nthe loopback testing mechanisms to invoke the handler function\nneed to test the trigger. The triggering and setting ioctl paths\nboth make use of igate and are therefore mutually exclusive.\n\nThe vfio-fsl-mc driver does not make use of irqfds, nor does it\nsupport any sort of masking operations, therefore unlike vfio-pci\nand vfio-platform, the flow can remain essentially unchanged." } ], "providerMetadata": { "dateUpdated": "2024-11-05T09:16:19.344Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede" }, { "url": "https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d" }, { "url": "https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417" }, { "url": "https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267" }, { "url": "https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d" }, { "url": "https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9" }, { "url": "https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012" } ], "title": "vfio/fsl-mc: Block calling interrupt handler without trigger", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-26814", "datePublished": "2024-04-05T08:24:43.916Z", "dateReserved": "2024-02-19T14:20:24.180Z", "dateUpdated": "2024-11-05T09:16:19.344Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-26814\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-05T09:15:09.393\",\"lastModified\":\"2024-11-21T09:03:08.187\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nvfio/fsl-mc: Block calling interrupt handler without trigger\\n\\nThe eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is\\ninitially NULL and may become NULL if the user sets the trigger\\neventfd to -1. The interrupt handler itself is guaranteed that\\ntrigger is always valid between request_irq() and free_irq(), but\\nthe loopback testing mechanisms to invoke the handler function\\nneed to test the trigger. The triggering and setting ioctl paths\\nboth make use of igate and are therefore mutually exclusive.\\n\\nThe vfio-fsl-mc driver does not make use of irqfds, nor does it\\nsupport any sort of masking operations, therefore unlike vfio-pci\\nand vfio-platform, the flow can remain essentially unchanged.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: vfio/fsl-mc: Bloquear el controlador de interrupciones de llamada sin disparador. El puntero de disparo eventfd_ctx del objeto vfio_fsl_mc_irq es inicialmente NULL y puede convertirse en NULL si el usuario establece el disparador eventfd en -1. El propio controlador de interrupciones garantiza que el disparador siempre ser\u00e1 v\u00e1lido entre request_irq() y free_irq(), pero los mecanismos de prueba de bucle invertido para invocar la funci\u00f3n del controlador deben probar el disparador. Las rutas de activaci\u00f3n y configuraci\u00f3n de ioctl utilizan igate y, por lo tanto, son mutuamente excluyentes. El controlador vfio-fsl-mc no utiliza irqfds ni admite ning\u00fan tipo de operaci\u00f3n de enmascaramiento; por lo tanto, a diferencia de vfio-pci y vfio-platform, el flujo puede permanecer esencialmente sin cambios.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}" } }
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Sightings
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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