cleanup

1 files changed, 5 insertions, 3 deletions

diff --git a/src/firejail/netfilter.c b/src/firejail/netfilter.c
index 0136ab1f8..43f08e45b 100644
--- a/src/firejail/netfilter.c
+++ b/src/firejail/netfilter.c
@@ -85,12 +85,14 @@ void netfilter(const char *fname) {
                 filter = malloc(size + 1);        // + '\0'
                 if (filter == NULL)
                         goto errexit;
-                memset(&filter[0], 0, sizeof(filter));
+                memset(filter, 0, size + 1);
                 int rd = 0;
                 while (rd < size) {
                         int rv = read(fd, (unsigned char *) filter + rd, size - rd);
-                        if (rv == -1)
+                        if (rv == -1) {
+                                close(fd);
                                 goto errexit;
+                        }
                         rd += rv;
                 }
                 
@@ -207,7 +209,7 @@ void netfilter6(const char *fname) {
         filter = malloc(size + 1);        // + '\0'
         if (filter == NULL)
                 goto errexit;
-        memset(&filter[0], 0, sizeof(filter));
+        memset(filter, 0, size + 1);
         int rd = 0;
         while (rd < size) {
                 int rv = read(fd, (unsigned char *) filter + rd, size - rd);