Vulnerability CVE-2024-43877
Published: 2024-08-21

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.

 References:
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
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