{"id":"CVE-2024-26814","summary":"vfio/fsl-mc: Block calling interrupt handler without trigger","details":"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.","modified":"2026-03-20T12:35:14.267657Z","published":"2024-04-05T08:24:43.916Z","related":["SUSE-SU-2024:2571-1","SUSE-SU-2024:2894-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2902-1","SUSE-SU-2024:2929-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2947-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26814.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417"},{"type":"WEB","url":"https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede"},{"type":"WEB","url":"https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26814.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26814"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cc0ee20bd96971c10eba9a83ecf1c0733078a083"},{"fixed":"a563fc18583ca4f42e2fdd0c70c7c618288e7ede"},{"fixed":"250219c6a556f8c69c5910fca05a59037e24147d"},{"fixed":"083e750c9f5f4c3bf61161330fb84d7c8e8bb417"},{"fixed":"ee0bd4ad780dfbb60355b99f25063357ab488267"},{"fixed":"de87511fb0404d23b6da5f4660383b6ed095e28d"},{"fixed":"6ec0d88166dac43f29e96801c0927d514f17add9"},{"fixed":"7447d911af699a15f8d050dfcb7c680a86f87012"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26814.json"}}],"schema_version":"1.7.5"}