CVE-2025-38080

MEDIUM

Linux Kernel 4.15-6.6.92, 6.7.0-6.12.30, 6.13.0-6.14.8 - Denial of Service via Block Sequence Buffer Overflow

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 5.5
EPSS 0.0015
EPSS Percentile 4.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (14)
linux/Kernel 4.15.0 - 6.6.93linux
linux/Kernel 6.13.0 - 6.14.9linux
linux/Kernel 6.7.0 - 6.12.31linux
Linux/Linux < 4.15
Linux/Linux 4.15
Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - 3a7810c212bcf2f722671dadf4b23ff70a7d23ee
Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - bf1666072e7482317cf2302621766482a21a62c7
Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - de67e80ab48f1f23663831007a2fa3c1471a7757
Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - e55c5704b12eeea27e212bfab8f7e51ad3e8ac1f
Linux/Linux 6.12.31 - 6.12.*
... and 4 more
Published Jun 18, 2025
Tracked Since Feb 18, 2026