Overview
About vulnerability
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.
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS
- Affected packages:
- kernel @ 3.10.0 (+12 more)
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.