5.5

CVE-2025-38630: debian debian_linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-38630DEBIAN-CVE-2025-38630
Published 22-08-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-38630 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 50 · Related 47
DLA-4328-1MGASA-2025-0234MGASA-2025-0235OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03272-1SUSE-SU-2025:03290-1

Timeline

  1. 22-08-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref fb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot allocate a struct fb_modelist. If that happens, the modelist stays empty but the driver continues to register. Add a check for its return value to prevent poteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu147 products
  • linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < 69373502c2b5d364842c702c941d1171e4f35a7c | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < f00c29e6755ead56baf2a9c1d3c4c0bb40af3612 | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < cca8f5a3991916729b39d797d01499c335137319 | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < ac16154cccda8be10ee3ae188f10a06f3890bc5d | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < 4b5d36cc3014986e6fac12eaa8433fe56801d4ce | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < 40f0a51f6c54d46a94b9f1180339ede7ca7ee190 | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < 49377bac9e3bec1635065a033c9679214fe7593e | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < f060441c153495750804133555cf0a211a856892 | ≥ 1b6c79361ba5ce30b40f0f7d6fc2421dc5fcbe0c, < da11e6a30e0bb8e911288bdc443b3dc8f6a7cac7 | 3.11
  • linux_kernel≥ 3.11, < 5.4.297 | ≥ 5.5, < 5.10.241 | ≥ 5.11, < 5.15.190 | ≥ 5.16, < 6.1.148 | ≥ 6.2, < 6.6.102 | ≥ 6.7, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1

3 vendors · 151 products

References

46 links
Show all 46 references