AZL-64785
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-64785.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-64785
- Upstream
- Published
- 2025-07-04T14:15:25Z
- Modified
- 2026-04-01T05:20:24.068729Z
- Summary
- CVE-2025-38184 affecting package kernel for versions less than 6.6.96.1-1
- Details
-
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. TIPCNLUDPGETREMOTEIP 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:tipcudpnldumpremoteip+0x4a4/0x8f0
the ub was in fact a struct dev.
when bid != 0 && skipcnt != 0, bearerlist[bid] may be NULL or other media when other thread changes it.
fix this by checking media_id.
- References