[PATCH 9/9] signal: Move PTRACE_EVENT_EXIT into get_signal
From: Eric W. Biederman <hidden>
Date: 2021-06-24 19:04:03
Also in:
linux-arch, linux-m68k, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
This ensures that we always have all full set of registers available when PTRACE_EVENT_EXIT is called. Something that is not guaranteed for callers of do_exit. Additionally this guarantees PTRACE_EVENT_EXIT will not cause havoc with abnormal exits. Signed-off-by: "Eric W. Biederman" <redacted> --- kernel/exit.c | 2 -- kernel/signal.c | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/exit.c b/kernel/exit.c
index 51e0c82b3f7d..309f1d71e340 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c@@ -763,8 +763,6 @@ void __noreturn do_exit(long code) profile_task_exit(tsk); kcov_task_exit(tsk); - ptrace_event(PTRACE_EVENT_EXIT, code); - validate_creds_for_do_exit(tsk); /*
diff --git a/kernel/signal.c b/kernel/signal.c
index 63fda9b6bbf9..7214331836bc 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c@@ -2890,6 +2890,8 @@ bool get_signal(struct ksignal *ksig) if (exit_code & 0x7f) current->flags |= PF_SIGNALED; + ptrace_event(PTRACE_EVENT_EXIT, exit_code); + /* * PF_IO_WORKER threads will catch and exit on fatal signals * themselves. They have cleanup that must be performed, so
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2.20.1