Vulnerability CVE-2024-27008
Published: 2024-05-01

Description:
In the Linux kernel, the following vulnerability has been resolved:

drm: nv04: Fix out of bounds access

When Output Resource (dcb->or) value is assigned in
fabricate_dcb_output(), there may be out of bounds access to
dac_users array in case dcb->or is zero because ffs(dcb->or) is
used as index there.
The 'or' argument of fabricate_dcb_output() must be interpreted as a
number of bit to set, not value.

Utilize macros from 'enum nouveau_or' in calls instead of hardcoding.

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

 References:
https://git.kernel.org/stable/c/df0991da7db846f7fa4ec6740350f743d3b69b04
https://git.kernel.org/stable/c/5fd4b090304e450aa0e7cc9cc2b4873285c6face
https://git.kernel.org/stable/c/6690cc2732e2a8d0eaca44dcbac032a4b0148042
https://git.kernel.org/stable/c/26212da39ee14a52c76a202c6ae5153a84f579a5
https://git.kernel.org/stable/c/cf92bb778eda7830e79452c6917efa8474a30c1e
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