CVE-2024-26814 Affecting kernel-syms package, versions <6.4.0-150600.23.14.2
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-7551638
- published 23 Jul 2024
- disclosed 22 Jul 2024
Introduced: 22 Jul 2024
CVE-2024-26814 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.14.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2024-26814.html
- https://bugzilla.suse.com/1222810
- https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417
- https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9
- https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012
- https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d
- https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267
- https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d
- https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html