From 2910818f06d2b25eb24a60f1d874d2a93ed281af Mon Sep 17 00:00:00 2001
From: Tomoki Shirasawa <tomoki.shirasawa.kk@hitachi-solutions.com>
Date: Thu, 13 Sep 2018 20:41:14 +0900
Subject: [PATCH] execve: Fix calling ptrace_report_signal after preemption is
 disabled

Change-Id: I451d28d985ab330d855501597713e982b8febf4e
Refs: 1194
---
 kernel/syscall.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/syscall.c b/kernel/syscall.c
index e2190cf5..466ca890 100644
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -1980,7 +1980,9 @@ static int ptrace_report_exec(struct thread *thread)
 		int sig = (SIGTRAP | (PTRACE_EVENT_EXEC << 8));
 
 		memcpy(&ctx, &thread->ctx, sizeof ctx);
+		preempt_enable();
 		ptrace_report_signal(thread, sig);
+		preempt_disable();
 		memcpy(&thread->ctx, &ctx, sizeof ctx);
 	}
 	return 0;