Vulnerability Database

318,756

Total vulnerabilities in the database

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 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.

  • Published: Jul 4, 2025
  • Updated: Dec 19, 2025
  • CVE: CVE-2025-38184
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
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-rc1 6.16-rc1.x
linux / linux_kernel 6.16-rc2 6.16-rc2.x
debian / debian_linux 11.0 11.0.x