ebiederm@xxxxxxxxxxxx (Eric W. Biederman) writes: > Take a good look over the code base and see if I can see any more > issues like was found in next_tgid and repost the core patches. Oleg, I am reading through kernel/ptrace.c and I am seeing a lot of: spin_lock(&child->sighand->siglock); In places where I don't see anything guaranteeing the child is stopped such as ptrace_freeze_traced. Are all of those places safe or do some of the need to be transformed into lock_task_sighand in case the process is current running? I might just be reading the code to quickly and missing what keeps the code from executing exec and changing sighand. Eric
