Messages in this thread Patch in this message | | | Date | Mon, 02 Jan 2012 23:53:00 +0000 | From | Phillip Lougher <> | Subject | [PATCH] 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 <phillip@squashfs.org.uk> --- fs/squashfs/super.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 2da1715..4619247 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; } -- 1.7.5.4
| |