cve-2026-31682

About this tag
CVE-2026-31682 is a Linux kernel vulnerability in the bridge IPv6 Neighbor Discovery path, specifically in the br_nd_send() function. The flaw arises from an assumption that packet data resides in the linear portion of an sk_buff, which can be violated under certain conditions. This affects virtualization hosts, containers, and cloud platforms using Linux bridging. The fix is small but highlights the fragility of packet layout assumptions in kernel networking security. Discussions on WindowsForum cover the technical details, impact, and broader lessons for kernel developers.

  1. CVE-2026-31682: Linux Bridge IPv6 ND Bug and the Fragility of SKB Layout

    CVE-2026-31682 is a newly published Linux kernel vulnerability that lands in an unusually important corner of modern infrastructure: the bridge networking path used by virtualization hosts, containers, appliances, and cloud platforms. The flaw sits in br_nd_send(), where Linux bridge code parsed...
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    • cve-2026-31682 ipv6 neighbor discovery linux kernel virtualization networking
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    • Forum: Security Alerts