CVE-2016-5828: The start_thread function in arch/powerpc/kernel/process.c in the Linux kernel through 4.6.3 on powerpc pla...

Security readout for executives and security teams

This is a Linux kernel flaw limited to PowerPC systems. A local user or local code could put the kernel into an invalid transactional-memory state and crash the system. The main business risk is availability loss on older or unpatched PowerPC Linux hosts, not broad remote compromise. Exposure is likely limited to PowerPC Linux systems running affected kernels or vendor kernels lacking the referenced 2016 fixes. Systems without local users, shell access, batch jobs, containers, or other local code execution are less exposed. Schedule patching for any PowerPC Linux estate, especially shared or production systems. This is not evidenced as internet-exploited in the bundle, but a local crash in the kernel can still create operational downtime. Mitigation focus: Apply the relevant vendor kernel security update for affected PowerPC systems.; Reboot systems after kernel update so the fixed kernel is running.; Prioritize shared, multi-user, and externally managed PowerPC hosts..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

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