CVE-2024-43877 Information

Description

In the Linux kernel the following vulnerability has been resolved:

media: pci: ivtv: Add check for DMA map result

In case DMA fails ‘dma->SG_length’ is 0. This value is later used to access ‘dma->SGarray[dma->SG_length - 1]’ which will cause out of bounds access.

Add check to return early on invalid value. Adjust warnings accordingly.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Reference

https://git.kernel.org/stable/c/24062aa7407091dee3e45a8e8037df437e848718 https://git.kernel.org/stable/c/3d8fd92939e21ff0d45100ab208f8124af79402a https://git.kernel.org/stable/c/c766065e8272085ea9c436414b7ddf1f12e7787b https://git.kernel.org/stable/c/629913d6d79508b166c66e07e4857e20233d85a9