linux-kernel - Re: WARNING: refcount bug in p9_req

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Date:   Fri, 14 Aug 2020 22:23:08 -0700
From:   syzbot <syzbot+edec7868af5997928fe9@...kaller.appspotmail.com>
To:     asmadeus@...ewreck.org, davem@...emloft.net, ericvh@...il.com,
        hch@....de, kuba@...nel.org, linux-kernel@...r.kernel.org,
        lucho@...kov.net, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com,
        v9fs-developer@...ts.sourceforge.net
Subject: Re: WARNING: refcount bug in p9_req_put

syzbot suspects this issue was fixed by commit:

commit a39c46067c845a8a2d7144836e9468b7f072343e
Author: Christoph Hellwig <hch@....de>
Date:   Fri Jul 10 08:57:22 2020 +0000

    net/9p: validate fds in p9_fd_open

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1015f012900000
start commit:   459e3a21 gcc-9: properly declare the {pv,hv}clock_page sto..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=ef1b87b455c397cf
dashboard link: https://syzkaller.appspot.com/bug?extid=edec7868af5997928fe9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1642ee48a00000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: net/9p: validate fds in p9_fd_open

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