7.8

CVE-2025-38184: debian debian_linux NULL Pointer Dereference

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2025-38184DEBIAN-CVE-2025-38184
Published 04-07-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-38184 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 9.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 59 · Related 54
DLA-4327-1DLA-4328-1DSA-5973-1MGASA-2025-0218MGASA-2025-0219OPENSUSE-SU-2025:20081-1

Timeline

  1. 04-07-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer The reproduction steps: 1. create a tun interface 2. enable l2 bearer 3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun tipc: Started in network mode tipc: Node identity 8af312d38a21, cluster identity 4711 tipc: Enabled bearer <eth:syz_tun>, priority 1 Oops: general protection fault KASAN: null-ptr-deref in range CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT Hardware name: QEMU Ubuntu 24.04 PC RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0 the ub was in fact a struct dev. when bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or other media when other thread changes it. fix this by checking media_id.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.03 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

Ubuntu145 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
Linux2 products
  • linux≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < 3998283e4c32c0fe69edd59b0876c193f50abce6 | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < c2e17984752b9131061d1a2ca1199da2706337fd | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < 8595350615f952fcf8bc861464a6bf6b1129af50 | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < 05d332ba075753d569d66333d62d60fff5f57ad8 | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < d3dfe821dfe091c0045044343c8d86596d66e2cf | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < 0d3d91c3500f0c480e016faa4e2259c588616e59 | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < 0f4a72fb266e48dbe928e1d936eab149e4ac3e1b | ≥ 832629ca5c313e122b22b8e73a6d80f111b1a1ae, < f82727adcf2992822e12198792af450a76ebd5ef | 4.9
  • linux_kernel≥ 4.9, < 5.4.295 | ≥ 5.5, < 5.10.239 | ≥ 5.11, < 5.15.186 | ≥ 5.16, < 6.1.142 | ≥ 6.2, < 6.6.95 | ≥ 6.7, < 6.12.35 | ≥ 6.13, < 6.15.4 | 6.16:rc1 | 6.16:rc2

3 vendors · 149 products

References

46 links
Show all 46 references