From: tenzap <46226844+tenzap@users.noreply.github.com>
Date: Sun, 15 Sep 2019 17:57:08 +0200
Subject: [PATCH] Whitelist UFSD (backport to 2.9 branch) (#452)


diff --git a/ChangeLog b/ChangeLog
index 13a369f..5574f20 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Unreleased Changes
+==================
+
+* Added UFSD to whitelist (so users can now mount FUSE filesystems
+  on mountpoints within UFSD filesystems).
+
 FUSE 2.9.9 (2019-01-04)
 =======================
 
diff --git a/util/fusermount.c b/util/fusermount.c
index ef9d1ed..63a69dc 100644
--- a/util/fusermount.c
+++ b/util/fusermount.c
@@ -1050,6 +1050,7 @@ static int check_perm(const char **mntp, struct stat *stbuf, int *mountpoint_fd)
 		0x73717368 /* SQUASHFS_MAGIC */,
 		0x01021994 /* TMPFS_MAGIC */,
 		0x24051905 /* UBIFS_SUPER_MAGIC */,
+		0x736675005346544e /* UFSD */,
 		0x58465342 /* XFS_SB_MAGIC */,
 		0x2FC12FC1 /* ZFS_SUPER_MAGIC */,
 	};