cbcvebase.
CVE-2025-38184
published 2025-07-04

CVE-2025-38184: In the Linux kernel, the following vulnerability has been resolved: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer The reproduction…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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 , 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.

Affected

37 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 3998283e4c32c0fe69edd59b0876c193f50abce63998283e4c32c0fe69edd59b0876c193f50abce6
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < c2e17984752b9131061d1a2ca1199da2706337fdc2e17984752b9131061d1a2ca1199da2706337fd
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 8595350615f952fcf8bc861464a6bf6b1129af508595350615f952fcf8bc861464a6bf6b1129af50
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 05d332ba075753d569d66333d62d60fff5f57ad805d332ba075753d569d66333d62d60fff5f57ad8
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < d3dfe821dfe091c0045044343c8d86596d66e2cfd3dfe821dfe091c0045044343c8d86596d66e2cf
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 0d3d91c3500f0c480e016faa4e2259c588616e590d3d91c3500f0c480e016faa4e2259c588616e59
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 0f4a72fb266e48dbe928e1d936eab149e4ac3e1b0f4a72fb266e48dbe928e1d936eab149e4ac3e1b
linuxlinux>= 832629ca5c313e122b22b8e73a6d80f111b1a1ae < f82727adcf2992822e12198792af450a76ebd5eff82727adcf2992822e12198792af450a76ebd5ef
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 5.15.0-156.1665.15.0-156.166
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 4.9 < 5.4.2955.4.295
linuxlinux_kernel>= 5.11 < 5.15.1865.15.186
linuxlinux_kernel>= 5.16 < 6.1.1426.1.142
linuxlinux_kernel>= 5.5 < 5.10.2395.10.239
linuxlinux_kernel>= 6.13 < 6.15.46.15.4
linuxlinux_kernel>= 6.2 < 6.6.956.6.95

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.6MEDIUM