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In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in() after confirm When send a broadcast packet to a tap devic…

High CVSS 7.5
CVECVE-2025-39894
First seen2026-07-30 23:16 UTC
Disclosed2025-10-01 08:15 UTC
Last updated2026-07-30 23:16 UTC
Channel statusauto

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in() after confirm When send a broadcast packet to a tap device, which was added to a bridge, br_nf_local_in() is called to confirm the conntrack. If another conntrack with the same hash value is added to the hash table, which can be triggered by a normal packet to a non-bridge device, the below warning may happen. ------------[ cut here ]------------ WAR…

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :
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Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD