7

CVE-2025-38460: debian debian_linux NULL Pointer Dereference

CVSS: 7.0v3.1HighModified
AliasesUBUNTU-CVE-2025-38460DEBIAN-CVE-2025-38460
Published 25-07-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-38460 is a high (CVSS 7.0) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.4% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 60 · Related 54
DLA-4327-1DLA-4328-1DSA-5973-1DSA-5975-1MGASA-2025-0218MGASA-2025-0219

Timeline

  1. 25-07-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.02 pp

From 0.16% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.18%

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) | < 5.15.0-156.166 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a4c5785feb979cd996a99cfaad8bf353b2e79301 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3251ce3979f41bd228f77a7615f9dd616d06a110 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 06935c50cfa3ac57cce80bba67b6d38ec1406e92 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 36caab990b69ef4eec1d81c52a19f080b7daa059 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f58e4270c73e7f086322978d585ea67c8076ce49 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 706cc36477139c1616a9b2b96610a8bb520b7119 | 2.6.12
  • linux_kernel≥ 2.6.13, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.99 | ≥ 6.7, < 6.12.39 | ≥ 6.13, < 6.15.7 | 2.6.12 | 2.6.12:rc2 | 2.6.12:rc3 | 2.6.12:rc4 | 2.6.12:rc5 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5

3 vendors · 151 products

References

46 links
Show all 46 references