CVE-2025-38184

MEDIUM EPSS 5.6%

Published Jul 4, 202512mo ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published Jul 4, 2025 12mo ago

Last Modified Jun 17, 2026 1w ago

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 Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector Local

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

5.6% percentile

Exploit & Patch Status

No Known Exploit

Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 10

Vendor	Product	Version	Range
linux	linux_kernel	*	≥4.9 – <5.4.295
linux	linux_kernel	*	≥5.5 – <5.10.239
linux	linux_kernel	*	≥5.11 – <5.15.186
linux	linux_kernel	*	≥5.16 – <6.1.142
linux	linux_kernel	*	≥6.2 – <6.6.95
linux	linux_kernel	*	≥6.7 – <6.12.35
linux	linux_kernel	*	≥6.13 – <6.15.4
linux	linux_kernel	6.16	any
linux	linux_kernel	6.16	any
debian	debian_linux	11.0	any

References 10

git.kernel.org https://git.kernel.org/stable/c/05d332ba075753d569d66333d62d60fff5f57ad8

Patch
git.kernel.org https://git.kernel.org/stable/c/0d3d91c3500f0c480e016faa4e2259c588616e59

Patch
git.kernel.org https://git.kernel.org/stable/c/0f4a72fb266e48dbe928e1d936eab149e4ac3e1b

Patch
git.kernel.org https://git.kernel.org/stable/c/3998283e4c32c0fe69edd59b0876c193f50abce6

Patch
git.kernel.org https://git.kernel.org/stable/c/8595350615f952fcf8bc861464a6bf6b1129af50

Patch
git.kernel.org https://git.kernel.org/stable/c/c2e17984752b9131061d1a2ca1199da2706337fd

Patch
git.kernel.org https://git.kernel.org/stable/c/d3dfe821dfe091c0045044343c8d86596d66e2cf

Patch
git.kernel.org https://git.kernel.org/stable/c/f82727adcf2992822e12198792af450a76ebd5ef

Patch
lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

Third Party Advisory
lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Third Party Advisory

Remediation

git.kernel.org https://git.kernel.org/stable/c/05d332ba075753d569d66333d62d60fff5f57ad8

Patch
git.kernel.org https://git.kernel.org/stable/c/0d3d91c3500f0c480e016faa4e2259c588616e59

Patch
git.kernel.org https://git.kernel.org/stable/c/0f4a72fb266e48dbe928e1d936eab149e4ac3e1b

Patch
git.kernel.org https://git.kernel.org/stable/c/3998283e4c32c0fe69edd59b0876c193f50abce6

Patch
git.kernel.org https://git.kernel.org/stable/c/8595350615f952fcf8bc861464a6bf6b1129af50

Patch
git.kernel.org https://git.kernel.org/stable/c/c2e17984752b9131061d1a2ca1199da2706337fd

Patch
git.kernel.org https://git.kernel.org/stable/c/d3dfe821dfe091c0045044343c8d86596d66e2cf

Patch
git.kernel.org https://git.kernel.org/stable/c/f82727adcf2992822e12198792af450a76ebd5ef

Patch