Description
In the Linux kernel, the following vulnerability has been resolved: vfio/fsl-mc: Block calling interrupt handler without trigger The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is initially NULL and may become NULL if the user sets the trigger eventfd to -1. The interrupt handler itself is guaranteed that trigger is always valid between request_irq() and free_irq(), but the loopback testing mechanisms to invoke the handler function need to test the trigger. The triggering and setting ioctl paths both make use of igate and are therefore mutually exclusive. The vfio-fsl-mc driver does not make use of irqfds, nor does it support any sort of masking operations, therefore unlike vfio-pci and vfio-platform, the flow can remain essentially unchanged.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
cc0ee20bd96971c10eba9a83ecf1c0733078a083 to < a563fc18583ca4f42e2fdd0c70c7c618288e7edeaffectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < 250219c6a556f8c69c5910fca05a59037e24147daffectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < 083e750c9f5f4c3bf61161330fb84d7c8e8bb417affectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < ee0bd4ad780dfbb60355b99f25063357ab488267affectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < de87511fb0404d23b6da5f4660383b6ed095e28daffectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < 6ec0d88166dac43f29e96801c0927d514f17add9affectedcc0ee20bd96971c10eba9a83ecf1c0733078a083 to < 7447d911af699a15f8d050dfcb7c680a86f87012affected
Linux Linux
Default version status: affected
5.10affected0 to < 5.10unaffected5.10.215 to ≤ 5.10.*unaffected5.15.154 to ≤ 5.15.*unaffected6.1.84 to ≤ 6.1.*unaffected6.6.24 to ≤ 6.6.*unaffected6.7.12 to ≤ 6.7.*unaffected6.8.3 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede ↗
- https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d ↗
- https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417 ↗
- https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267 ↗
- https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d ↗
- https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9 ↗
- https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗