CVE-2025-38184

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Source
https://cve.org/CVERecord?id=CVE-2025-38184
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38184.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38184
Downstream
Related
Published
2025-07-04T13:37:11Z
Modified
2026-08-12T03:30:11Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38184.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
832629ca5c313e122b22b8e73a6d80f111b1a1ae
Fixed
3998283e4c32c0fe69edd59b0876c193f50abce6
Fixed
c2e17984752b9131061d1a2ca1199da2706337fd
Fixed
8595350615f952fcf8bc861464a6bf6b1129af50
Fixed
05d332ba075753d569d66333d62d60fff5f57ad8
Fixed
d3dfe821dfe091c0045044343c8d86596d66e2cf
Fixed
0d3d91c3500f0c480e016faa4e2259c588616e59
Fixed
0f4a72fb266e48dbe928e1d936eab149e4ac3e1b
Fixed
f82727adcf2992822e12198792af450a76ebd5ef

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38184.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.9.0
Fixed
5.4.295
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.239
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.186
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.142
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.95
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.35
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.15.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38184.json"