shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 20:07:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

Squashfs: fix mount time sanity check for corrupted superblock

Browse Source 
commit cc37f75a9f 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 <phillip@squashfs.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Phillip Lougher
2012-01-02 17:47:14 +00:00
committed by Greg Kroah-Hartman
parent b960ba5259
commit 9523d5244a
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/squashfs/super.c
View File

@@ -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;
}