From e57a5059846e55d82b86d96dde40e988598601b3 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 12 Apr 2006 16:30:20 -0700 Subject: [PATCH] [PATCH] fix non-leader exec under ptrace This reverts most of commit 30e0fca6c1d7d26f3f2daa4dd2b12c51dadc778a. It broke the case of non-leader MT exec when ptraced. I think the bug it was intended to fix was already addressed by commit 788e05a67c343fa22f2ae1d3ca264e7f15c25eaf. Signed-off-by: Roland McGrath Acked-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/ptrace.c | 7 ++----- kernel/signal.c | 4 ++-- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 0eeb7e66722c..4e0f0ec003f7 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -56,10 +56,6 @@ void ptrace_untrace(task_t *child) signal_wake_up(child, 1); } } - if (child->signal->flags & SIGNAL_GROUP_EXIT) { - sigaddset(&child->pending.signal, SIGKILL); - signal_wake_up(child, 1); - } spin_unlock(&child->sighand->siglock); } @@ -81,7 +77,8 @@ void __ptrace_unlink(task_t *child) add_parent(child); } - ptrace_untrace(child); + if (child->state == TASK_TRACED) + ptrace_untrace(child); } /* diff --git a/kernel/signal.c b/kernel/signal.c index b14f895027c3..e5f8aea78ffe 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1754,9 +1754,9 @@ int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, /* Let the debugger run. */ ptrace_stop(signr, signr, info); - /* We're back. Did the debugger cancel the sig or group_exit? */ + /* We're back. Did the debugger cancel the sig? */ signr = current->exit_code; - if (signr == 0 || current->signal->flags & SIGNAL_GROUP_EXIT) + if (signr == 0) continue; current->exit_code = 0; -- GitLab