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
2025-07-04T13:37:11.226Z
Modified
2026-03-12T02:17:07.386154Z
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. TIPCNLUDPGETREMOTEIP 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:tipcudpnldumpremoteip+0x4a4/0x8f0

the ub was in fact a struct dev.

when bid != 0 && skipcnt != 0, bearerlist[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"