1 files changed, 3 insertions, 1 deletions

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