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Date:   Fri, 22 Mar 2019 22:36:01 -0700
From:   syzbot <syzbot+670c11fba80a72c50a6a@...kaller.appspotmail.com>
To:     davem@...emloft.net, fw@...len.de, herbert@...dor.apana.org.au,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        steffen.klassert@...unet.com, suyj.fnst@...fujitsu.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: WARNING: suspicious RCU usage in xfrm_get_policy

syzbot has bisected this bug to:

commit f10e0010fae8174dc20bdc872bcaa85baa925cb7
Author: Su Yanjun <suyj.fnst@...fujitsu.com>
Date:   Thu Mar 7 01:54:08 2019 +0000

     net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10bddbef200000
start commit:   75e6a83b Add linux-next specific files for 20190319
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=12bddbef200000
console output: https://syzkaller.appspot.com/x/log.txt?x=14bddbef200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=84a8ad88e2cbdfd4
dashboard link: https://syzkaller.appspot.com/bug?extid=670c11fba80a72c50a6a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=129a0aa3200000

Reported-by: syzbot+670c11fba80a72c50a6a@...kaller.appspotmail.com
Fixes: f10e0010fae8 ("net: xfrm: Add '_rcu' tag for rcu protected pointer  
in netns_xfrm")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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