CVE-2026-74417

About vulnerability

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

drm/radeon: fix integer overflow in radeon_align_pitch()

radeon_align_pitch() has the same kind of overflow issue as the old amdgpu helper: both the alignment round-up add and the final ‘aligned * cpp’ calculation can overflow signed int.

If that wraps, radeon_mode_dumb_create() can end up returning an invalid pitch or creating a zero-sized dumb buffer.

Fix this by using check_add_overflow() for the alignment round-up and check_mul_overflow() for the final pitch calculation, returning 0 on overflow. Also reject zero pitch and size in radeon_mode_dumb_create().

Found via AST-based call-graph analysis using sqry.

Affected product:

AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Debian 10 ELS , Debian 11 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS

Affected packages:

linux @ 4.19.0 (+17 more)

Live-patch status from KernelCare for each operating system.