5.5

CVE-2025-21987: drm/amdgpu: init return value in amdgpu_ttm_clear_buffer

Analyzed
AliasesUBUNTU-CVE-2025-21987DEBIAN-CVE-2025-21987
Published 02-04-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-21987 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 6
SUSE-SU-2025:02254-1SUSE-SU-2025:02307-1SUSE-SU-2025:02333-1USN-7521-1USN-7521-3USN-7521-2

Timeline

  1. 02-04-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: init return value in amdgpu_ttm_clear_buffer Otherwise an uninitialized value can be returned if amdgpu_res_cleared returns true for all regions. Possibly closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3812 (cherry picked from commit 7c62aacc3b452f73a1284198c81551035fac6d71)

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu83 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ a68c7eaa7a8ffdec9287ba1561a668d674c20a13, < d2c9625b0ade41f9917875d88173a0cc802b95fc | ≥ a68c7eaa7a8ffdec9287ba1561a668d674c20a13, < 5bd98c2df4a0f2e2dcbdf563feb8d348406377b5 | ≥ a68c7eaa7a8ffdec9287ba1561a668d674c20a13, < d3c7059b6a8600fc62cd863f1ea203b8675e63e1 | 6.10
  • linux_kernel≥ 6.10, < 6.12.18 | ≥ 6.13, < 6.13.6 | 6.14:rc1 | 6.14:rc2 | 6.14:rc3 | 6.14:rc4
Debian1 product
  • linux< 6.12.19-1

3 vendors · 86 products

References

10 links