3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Phillip Lougher <phil...@squashfs.org.uk>
commit cc37f75a9ffbbfcb1c3297534f293c8284e3c5a6 upstream.
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 <phil...@squashfs.org.uk>
Cc: Geert Uytterhoeven <ge...@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/squashfs/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 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;
}
--
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