From cc37f75a9ffbbfcb1c3297534f293c8284e3c5a6 Mon Sep 17 00:00:00 2001 From: Phillip Lougher Date: Mon, 2 Jan 2012 17:47:14 +0000 Subject: Squashfs: fix mount time sanity check for corrupted superblock A Squashfs filesystem containing nothing but an empty directory, although unusual and ultimately pointless, is still valid. The directory_table >= next_table sanity check rejects these filesystems as invalid because the directory_table is empty and equal to next_table. Signed-off-by: Phillip Lougher --- fs/squashfs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/squashfs/super.c') diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 2da1715452ac..4619247d74ed 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -290,7 +290,7 @@ handle_fragments: check_directory_table: /* Sanity check directory_table */ - if (msblk->directory_table >= next_table) { + if (msblk->directory_table > next_table) { err = -EINVAL; goto failed_mount; } -- cgit v1.2.2