netdev - Re: KASAN: use-after-free Read in __queue

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Date:   Sat, 23 Nov 2019 15:37:01 -0800
From:   syzbot <syzbot+1c9db6a163a4000d0765@...kaller.appspotmail.com>
To:     davem@...emloft.net, ericvh@...il.com,
        linux-kernel@...r.kernel.org, lucho@...kov.net,
        netdev@...r.kernel.org, rminnich@...dia.gov,
        syzkaller-bugs@...glegroups.com,
        v9fs-developer@...ts.sourceforge.net, viro@...iv.linux.org.uk
Subject: Re: KASAN: use-after-free Read in __queue_work (2)

syzbot has bisected this bug to:

commit 7594bf37ae9ffc434da425120c576909eb33b0bc
Author: Al Viro <viro@...iv.linux.org.uk>
Date:   Mon Jul 17 02:53:08 2017 +0000

     9p: untangle ->poll() mess

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12ad235ee00000
start commit:   ca04b3cc Merge tag 'armsoc-fixes' of git://git.kernel.org/..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=11ad235ee00000
console output: https://syzkaller.appspot.com/x/log.txt?x=16ad235ee00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2ca6c7a31d407f86
dashboard link: https://syzkaller.appspot.com/bug?extid=1c9db6a163a4000d0765
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1473a452400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14087748400000

Reported-by: syzbot+1c9db6a163a4000d0765@...kaller.appspotmail.com
Fixes: 7594bf37ae9f ("9p: untangle ->poll() mess")

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