CVE-2025-38184tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 832629ca5c313e122b22b8e73a6d80f111b1a1ae before 3998283e4c32c0fe69edd59b0876c193f50abce6; from 832629ca5c313e122b22b8e73a6d80f111b1a1ae before c2e17984752b9131061d1a2ca1199da2706337fd; from 832629ca5c313e122b22b8e73a6d80f111b1a1ae before 8595350615f952fcf8bc861464a6bf6b1129af50; 832629ca5c313e122b22b8e73a6d80f111b1a1ae builds before 05d332ba075753d569d66333d62d60fff5f57ad8; from 832629ca5c313e122b22b8e73a6d80f111b1a1ae before d3dfe821dfe091c0045044343c8d86596d66e2cf; 832629ca5c313e122b22b8e73a6d80f111b1a1ae builds before 0d3d91c3500f0c480e016faa4e2259c588616e59; 832629ca5c313e122b22b8e73a6d80f111b1a1ae builds before 0f4a72fb266e48dbe928e1d936eab149e4ac3e1b; from 832629ca5c313e122b22b8e73a6d80f111b1a1ae before f82727adcf2992822e12198792af450a76ebd5ef | CNA record |
linux linux_kernel linux:linux_kernel | from 4.9 before 5.4.295; from 5.5 before 5.10.239; from 5.11 before 5.15.186; from 5.16 before 6.1.142; from 6.2 before 6.6.95; from 6.7 before 6.12.35; from 6.13 before 6.15.4; 6.16; and 1 more ranges | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/3998283e4c32c0fe69edd59b0876c193f50abce6patch
- https://git.kernel.org/stable/c/c2e17984752b9131061d1a2ca1199da2706337fdpatch
- https://git.kernel.org/stable/c/8595350615f952fcf8bc861464a6bf6b1129af50patch
- https://git.kernel.org/stable/c/05d332ba075753d569d66333d62d60fff5f57ad8patch
- https://git.kernel.org/stable/c/d3dfe821dfe091c0045044343c8d86596d66e2cfpatch
- https://git.kernel.org/stable/c/0d3d91c3500f0c480e016faa4e2259c588616e59patch
- https://git.kernel.org/stable/c/0f4a72fb266e48dbe928e1d936eab149e4ac3e1bpatch
- https://git.kernel.org/stable/c/f82727adcf2992822e12198792af450a76ebd5efpatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlthird-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.