From: Tahsin Erdogan <tahsin@google.com>
Date: Wed, 5 Jul 2017 03:53:59 +0000 (-0400)
Subject: fuse2fs: refuse to mount fs with ea_inode feature
X-Git-Tag: v1.44.0-rc1~66
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aca77cad36c74c9a06f1b1d380e3b105795dc569;p=thirdparty%2Fe2fsprogs.git

fuse2fs: refuse to mount fs with ea_inode feature

ext2fs_xattr_set() currently does not support creating xattr inodes,
so allowing fuse2fs to mount a filesystem with ea_inode feature could
lead to corruption. Refuse to mount if the ea_inode feature is set.

Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/misc/fuse2fs.c b/misc/fuse2fs.c
index b5897685c..956348f8f 100644
--- a/misc/fuse2fs.c
+++ b/misc/fuse2fs.c
@@ -3786,6 +3786,12 @@ int main(int argc, char *argv[])
 	global_fs->priv_data = &fctx;
 
 	ret = 3;
+	if (ext2fs_has_feature_ea_inode(global_fs->super)) {
+		printf(_("%s: fuse2fs does not support ea_inode feature.\n"),
+		       fctx.device);
+		goto out;
+	}
+
 	if (ext2fs_has_feature_journal_needs_recovery(global_fs->super)) {
 		if (!fctx.ro) {
 			printf(_("%s: recovering journal\n"), fctx.device);