CVE-2005-3847: The handle_stop_signal function in signal.c in Linux kernel 2.6.11 up to other versions before 2.6.13 and 2...

Security readout for executives and security teams

CVE-2005-3847 is an old Linux kernel denial-of-service flaw. A local user could trigger a kernel deadlock in specific signal-handling conditions involving a real-time threaded process and core dumping. It is not described as remote code execution, and the bundle provides no evidence of active exploitation. Exposure is mainly legacy Linux systems still running affected 2.6.x kernels or vendor backports without the referenced fix. Modern supported distributions are unlikely to be affected, but embedded, appliance, or long-lived systems should be checked. Treat this as a legacy-platform risk. It is unlikely to drive emergency response unless affected kernels remain in production, but any confirmed exposure should be remediated because local denial of service can disrupt shared systems. Mitigation focus: Identify systems running Linux kernel 2.6.11 through unfixed pre-2.6.13 builds.; Apply vendor kernel updates from Debian, SUSE, or the relevant distribution maintainer.; Use kernels including the NPTL signal delivery deadlock fix..

Prepared

Jun 29, 2026, 16:32 UTC (UTC+00:00)

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