From 594e2a48ec1a2350d9315ba6cf71b805446a49ad Mon Sep 17 00:00:00 2001
From: netblue30 <netblue30@yahoo.com>
Date: Wed, 29 Aug 2018 08:55:32 -0400
Subject: cleanup

---
 src/libpostexecseccomp/libpostexecseccomp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/libpostexecseccomp/libpostexecseccomp.c')

diff --git a/src/libpostexecseccomp/libpostexecseccomp.c b/src/libpostexecseccomp/libpostexecseccomp.c
index 6d2c8c695..de64d50c5 100644
--- a/src/libpostexecseccomp/libpostexecseccomp.c
+++ b/src/libpostexecseccomp/libpostexecseccomp.c
@@ -32,6 +32,8 @@ static void load_seccomp(void) {
 		return;
 
 	off_t size = lseek(fd, 0, SEEK_END);
+	if (size <= 0)
+		return;
 	unsigned short entries = (unsigned short) size / (unsigned short) sizeof(struct sock_filter);
 	struct sock_filter *filter = MAP_FAILED;
 	if (size != 0)
@@ -39,7 +41,7 @@ static void load_seccomp(void) {
 
 	close(fd);
 
-	if (size == 0 || filter == MAP_FAILED)
+	if (filter == MAP_FAILED)
 		return;
 
 	// install filter
-- 
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