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Message-ID: <CAD-N9QUK-wHnXaWkUiwOLFaQH_P+aHCC79UkB7Zs9OuB93dxfg@mail.gmail.com>
Date:   Thu, 21 Jan 2021 12:11:55 +0800
From:   慕冬亮 <mudongliangabcd@...il.com>
To:     bjorn.andersson@...aro.org, davem@...emloft.net, kuba@...nel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        manivannan.sadhasivam@...aro.org, netdev@...r.kernel.org,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: "WARNING: refcount bug in qrtr_node_lookup" and "WARNING: refcount
 bug in qrtr_recvmsg" should share the same root cause

Dear kernel developers,

I found that on the syzbot dashboard, “WARNING: refcount bug in
qrtr_node_lookup”[1] and "WARNING: refcount bug in qrtr_recvmsg"[2]
should share the same root cause.

The reasons for the above statement:
1) the stack trace is the same, and this title difference is due to
the inline property of "qrtr_node_lookup";
2) their PoCs are the same as each other;

If you can have any issues with this statement or our information is
useful to you, please let us know. Thanks very much.

[1] “WARNING: refcount bug in qrtr_node_lookup” -
https://syzkaller.appspot.com/bug?id=e10e2fe9023e90256a35bfd34c181910bf7a874d

[2] “WARNING: refcount bug in qrtr_recvmsg” -
https://syzkaller.appspot.com/bug?id=6532173a22405c4e16c79f35609b71a0e19e29ae

--
My best regards to you.

     No System Is Safe!
     Dongliang Mu

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