tree 3849972a74d8ca5a4b91cb64e6348a931de410cd
parent cf394db8b470c41589a7e8a2da0192b7a49c9cac
author Jan Kara <jack@suse.cz> 1604330189 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1609246009 +0100

quota: Sanity-check quota file headers on load

commit 11c514a99bb960941535134f0587102855e8ddee upstream.

Perform basic sanity checks of quota headers to avoid kernel crashes on
corrupted quota files.

CC: stable@vger.kernel.org
Reported-by: syzbot+f816042a7ae2225f25ba@syzkaller.appspotmail.com
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>