CVE-2025-38080: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Increase block_sequence array size [Why] It's possible to generate more than 50 steps in hwss_build_fast_sequence, for example with a 6-pipe asic where all pipes are in one MPC chain. This overflows the block_sequence buffer and corrupts block_sequence_steps, causing a crash. [How] Expand block_sequence to 100 items. A naive upper bound on the possible number of steps for a 6-pipe asic, ignoring the potential for steps to be mutually exclusive, is 91 with current code, therefore 100 is sufficient.

Affected products

• Linux Linux Kernel: from 4.15, before 6.6.93 (fixed in 6.6.93); from 6.7, before 6.12.31 (fixed in 6.12.31); from 6.13, before 6.14.9 (fixed in 6.14.9)

Published 2025-06-18. Last modified 2026-07-30.