CVE-2025-38184High· 7.8▾ TwilightIn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
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:
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.
linux_kernel >= 4.9, < 5.4.295linux_kernel >= 5.5, < 5.10.239linux_kernel >= 5.11, < 5.15.186linux_kernel >= 5.16, < 6.1.142linux_kernel >= 6.2, < 6.6.95linux_kernel >= 6.7, < 6.12.35linux_kernel >= 6.13, < 6.15.4linux_kernel = 6.16debian_linux = 11.0Upgrade past the affected range:
linux_kernel 6.15.4Connected by shared product, vendor, weakness, or advisory.
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