netdev - Re: [PATCH net 0/3] net: fix quite a few dst

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20190618.204938.1560433170435338986.davem@davemloft.net>
Date:   Tue, 18 Jun 2019 20:49:38 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, jon.maloy@...csson.com,
        ying.xue@...driver.com, tipc-discussion@...ts.sourceforge.net,
        marcelo.leitner@...il.com, nhorman@...driver.com,
        suyj.fnst@...fujitsu.com, dsahern@...il.com,
        syzkaller-bugs@...glegroups.com, dvyukov@...gle.com,
        pshelar@...ira.com
Subject: Re: [PATCH net 0/3] net: fix quite a few dst_cache crashes
 reported by syzbot

From: Xin Long <lucien.xin@...il.com>
Date: Mon, 17 Jun 2019 21:34:12 +0800

> There are two kinds of crashes reported many times by syzbot with no
> reproducer. Call Traces are like:
 ...
> They were caused by the fib_nh_common percpu member 'nhc_pcpu_rth_output'
> overwritten by another percpu variable 'dev->tstats' access overflow in
> tipc udp media xmit path when counting packets on a non tunnel device.
> 
> The fix is to make udp tunnel work with no tunnel device by allowing not
> to count packets on the tstats when the tunnel dev is NULL in Patches 1/3
> and 2/3, then pass a NULL tunnel dev in tipc_udp_tunnel() in Patch 3/3.

Series applied and queued up for -stable.

Thanks for putting all of those syzbot reported by tags in there.