drm/amd/display: Increase block_sequence array size (Linux Linux)

CVE-2025-38080
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.18 % · percentile 8 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < de67e80ab48f1f23663831007a2fa3c1471a7757 ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < e55c5704b12eeea27e212bfab8f7e51ad3e8ac1f ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < bf1666072e7482317cf2302621766482a21a62c7 ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 3a7810c212bcf2f722671dadf4b23ff70a7d23ee
Linux · Linuxaffected 4.15 ; unaffected 0 < 4.15 ; unaffected 6.6.93 ≤ 6.6.* ; unaffected 6.12.31 ≤ 6.12.* ; unaffected 6.14.9 ≤ 6.14.* ; unaffected 6.15 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD