fix /sys handling for overlayfs and chroot

1 files changed, 4 insertions, 6 deletions

diff --git a/src/firejail/fs.c b/src/firejail/fs.c
index 71cefffe0..f6aba7048 100644
--- a/src/firejail/fs.c
+++ b/src/firejail/fs.c
@@ -502,12 +502,10 @@ void fs_proc_sys_dev_boot(void) {
                 printf("Remounting /sys directory\n");
         if (umount2("/sys", MNT_DETACH) < 0)
                 fprintf(stderr, "Warning: failed to unmount /sys\n");
-        else {
-                if (mount("sysfs", "/sys", "sysfs", MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REC, NULL) < 0)
-                        fprintf(stderr, "Warning: failed to mount /sys\n");
-                else
-                        fs_logger("remount /sys");
-        }
+        if (mount("sysfs", "/sys", "sysfs", MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REC, NULL) < 0)
+                fprintf(stderr, "Warning: failed to mount /sys\n");
+        else
+                fs_logger("remount /sys");
                 
         disable_file(BLACKLIST_FILE, "/sys/firmware");
         disable_file(BLACKLIST_FILE, "/sys/hypervisor");