10 Jun
2021
10 Jun
'21
9:36 p.m.
On Thu, 10 Jun 2021 09:31:42 +0200 Bernd Edlinger bernd.edlinger@hotmail.de wrote:
This introduces signal->unsafe_execve_in_progress, which is used to fix the case when at least one of the sibling threads is traced, and therefore the trace process may dead-lock in ptrace_attach, but de_thread will need to wait for the tracer to continue execution.
Deadlocks are serious. Is this exploitable by unprivileged userspace?
Signed-off-by: Bernd Edlinger bernd.edlinger@hotmail.de
Was a -stable backport considered?