]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
quota: Sanity-check quota file headers on load
authorJan Kara <jack@suse.cz>
Mon, 2 Nov 2020 15:16:29 +0000 (16:16 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 30 Dec 2020 10:25:48 +0000 (11:25 +0100)
commit7bae84821b47e2ffa87a7afcb6891dd7e61c65ef
treec5b853f2e5ad365cd19b4b19591edcb5a40ddcd8
parent61490c481c61ff230da5f6042f353c6c0db0bc0c
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>
fs/quota/quota_v2.c