sdcard: mount sdcard with the noexec option
Vold mounts the sdcard with noexec, but the fuse deamon
mounts with exec, so it is still possible to execute
binaries:
/dev/fuse /storage/sdcard1 fuse rw,nosuid,nodev,relatime,
user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/block/vold/179:65 /mnt/media_rw/sdcard1 vfat rw,dirsync,
nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,
dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,
shortname=mixed,utf8,errors=remount-ro 0 0
With this change both vold and fuse mounts with noexec.
Change-Id: I66cbfc3a3a89a26958f83577f5e7a5e27f99184e
diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c
index 9ba81ff..2318978 100644
--- a/sdcard/sdcard.c
+++ b/sdcard/sdcard.c
@@ -1834,7 +1834,7 @@
"fd=%i,rootmode=40000,default_permissions,allow_other,user_id=%d,group_id=%d",
fd, uid, gid);
- res = mount("/dev/fuse", dest_path, "fuse", MS_NOSUID | MS_NODEV, opts);
+ res = mount("/dev/fuse", dest_path, "fuse", MS_NOSUID | MS_NODEV | MS_NOEXEC, opts);
if (res < 0) {
ERROR("cannot mount fuse filesystem: %s\n", strerror(errno));
goto error;