{"id":"CVE-2025-38184","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer\n\nThe reproduction steps:\n1","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer\n\nThe reproduction steps:\n1. create a tun interface\n2. enable l2 bearer\n3. TIPC_NL_UDP_GET_REMOTEIP …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.9, < 5.4.295","linux_kernel >= 5.5, < 5.10.239","linux_kernel >= 5.11, < 5.15.186","linux_kernel >= 5.16, < 6.1.142","linux_kernel >= 6.2, < 6.6.95","linux_kernel >= 6.7, < 6.12.35","linux_kernel >= 6.13, < 6.15.4","linux_kernel = 6.16","debian_linux = 11.0"],"patched":["linux_kernel 6.15.4"],"published":"2025-07-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:33.357","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-38184","references":[{"url":"https://git.kernel.org/stable/c/05d332ba075753d569d66333d62d60fff5f57ad8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0d3d91c3500f0c480e016faa4e2259c588616e59","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0f4a72fb266e48dbe928e1d936eab149e4ac3e1b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3998283e4c32c0fe69edd59b0876c193f50abce6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8595350615f952fcf8bc861464a6bf6b1129af50","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c2e17984752b9131061d1a2ca1199da2706337fd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d3dfe821dfe091c0045044343c8d86596d66e2cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f82727adcf2992822e12198792af450a76ebd5ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"epss":0.00205,"epssPercentile":0.1037,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:48:17.782889Z"},"ingestedAt":"2026-10-15T22:48:25.497Z","slug":"CVE-2025-38184","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer\n\nThe reproduction steps:\n1. create a tun interface\n2. enable l2 bearer\n3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun\n\ntipc: Started in network mode\ntipc: Node identity 8af312d38a21, cluster identity 4711\ntipc: Enabled bearer <eth:syz_tun>, priority 1\nOops: general protection fault\nKASAN: null-ptr-deref in range\nCPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT\nHardware name: QEMU Ubuntu 24.04 PC\nRIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0\n\nthe ub was in fact a struct dev.\n\nwhen bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or\nother media when other thread changes it.\n\nfix this by checking media_id.\n\n## Affected\n\n- `linux_kernel >= 4.9, < 5.4.295`\n- `linux_kernel >= 5.5, < 5.10.239`\n- `linux_kernel >= 5.11, < 5.15.186`\n- `linux_kernel >= 5.16, < 6.1.142`\n- `linux_kernel >= 6.2, < 6.6.95`\n- `linux_kernel >= 6.7, < 6.12.35`\n- `linux_kernel >= 6.13, < 6.15.4`\n- `linux_kernel = 6.16`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.15.4`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}