5.5

CVE-2025-21833: iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE

Modified
AliasesUBUNTU-CVE-2025-21833DEBIAN-CVE-2025-21833CGA-22wh-c7f8-hm78
Published 06-03-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-21833 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.9% 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 (CVE.org)
EPSS score
0.21%
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 20 · Related 21
SUSE-SU-2025:01614-1SUSE-SU-2025:01707-1SUSE-SU-2025:01919-1SUSE-SU-2025:01951-1SUSE-SU-2025:01964-1SUSE-SU-2025:01967-1

Timeline

  1. 06-03-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE There is a WARN_ON_ONCE to catch an unlikely situation when domain_remove_dev_pasid can't find the `pasid`. In case it nevertheless happens we must avoid using a NULL pointer.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% 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.

Ubuntu112 products
  • linux< 6.8.0-106.106
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1050.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard15 products
  • hyperv-daemons-6.12< 6.12.57-r0
  • linux-aws-6.12< 6.12.77-r0 | < 6.12.76-r0 | < 6.12.65-r0 | < 6.12.69-r0 | < 6.12.63-r0 | < 6.12.74-r0 | < 6.12.71-r0 | < 6.12.65-r2 | < 6.12.77-r1 | < 6.12.65-r1 | < 6.12.70-r0 | < 6.12.57-r0 | < 6.12.72-r0 | < 6.12.62-r1 | < 6.12.74-r1 | < 6.12.62-r2 | < 6.12.78-r0 | < 6.12.60-r4 | < 6.12.68-r0 | < 6.12.80-r0 | < 6.12.77-r2 | < 6.12.66-r0 | < 6.12.67-r0 | < 6.12.72-r1 | < 6.12.57-r2 | < 6.12.68-r1 | < 6.12.62-r0
  • linux-aws-6.12-boot-installed< 6.12.57-r0
  • linux-aws-6.12-fips-boot-installed< 6.12.57-r0
  • linux-aws-6.12-modules< 6.12.57-r0
Linux2 products
  • linux≥ d87731f609318a27e9aa3d01cf97798599d32839, < 68ec78beb4a3fb0877cbaaf49758c85410c05977 | ≥ d87731f609318a27e9aa3d01cf97798599d32839, < df96876be3b064aefc493f760e0639765d13ed0d | ≥ d87731f609318a27e9aa3d01cf97798599d32839, < 60f030f7418d3f1d94f2fb207fe3080e1844630b | 6.7
  • linux_kernel< 6.13.3
Debian1 product
  • linux< 6.12.57-1 | < 6.16.3-1

4 vendors · 130 products

References

20 links
Show all 20 references