CVE-2016-9806: Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 al...

Security readout for executives and security teams

CVE-2016-9806 is a Linux kernel flaw where a local user could trigger a race condition in netlink handling. The documented outcome is denial of service through a double free, with unspecified other impact possible. It is not marked as known exploited in the provided sources. Exposure is most relevant to systems running Linux kernels before 4.6.3 or vendor kernels lacking the referenced fix. The source bundle does not provide complete affected vendor or distribution version ranges, so teams must verify vendor backport status rather than relying only on upstream version numbers. Handle through normal kernel patch governance, with higher urgency for shared or untrusted-workload systems. There is no provided evidence of active exploitation, but kernel memory-management flaws can create operational instability and should not be left indefinitely unresolved. Mitigation focus: Update to a kernel build containing commit 92964c79b357 or equivalent vendor backport.; Review relevant vendor advisories, including Red Hat and Android bulletins, for fixed package guidance.; Prioritize shared Linux systems where untrusted users or workloads can execute locally..

Prepared

Jun 13, 2026, 12:51 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.