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[2607:7c80:54:e::133]) by mx.google.com with ESMTPS id g59si20569393plb.281.2019.03.27.13.27.53 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 27 Mar 2019 13:27:53 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of willy@infradead.org designates 2607:7c80:54:e::133 as permitted sender) client-ip=2607:7c80:54:e::133; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20170209 header.b=ZqY9P5Fm; spf=pass (google.com: best guess record for domain of willy@infradead.org designates 2607:7c80:54:e::133 as permitted sender) smtp.mailfrom=willy@infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=90GUhgxAUgMQ4hrgT2Dhn2xc52MqyoCxjdH1nrO5eeA=; b=ZqY9P5Fm5UcLyF3hCh9EE4QHV ngdGeotfI8cMt3n/M4+mCTPbB0ywkGXExP326Ap0V4poQH1Owb+uhkg3pemx2sxPFvNNGKAiaSVTp Qc73irjwqG12pJqYpQ1eoYpdreJermGCY9xfdriwO1kWPzaurLEND2uUzSiMygYZ/wrJQRYct6JCz UEbUv56taQUOIEYOyndt8U2ASFKyn2fxtE7fLwzPOfqxAiCQdiox5eo1DeYbOVOTRKH0OorOibzMU IUXNpd1gAIU59jf4YdCBMTkSLDeQSIFVRqRBIHfepPc7281qvKCNRVNoHyw2XBpBP75QTwpGGRPcZ h/Qiq7eWA==; Received: from willy by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9F8i-00035n-Ps; Wed, 27 Mar 2019 20:27:12 +0000 Date: Wed, 27 Mar 2019 13:27:12 -0700 From: Matthew Wilcox To: syzbot Cc: akpm@linux-foundation.org, clm@fb.com, dan.carpenter@oracle.com, dave@stgolabs.net, dhowells@redhat.com, dsterba@suse.com, dvyukov@google.com, ebiederm@xmission.com, jbacik@fb.com, ktkhai@virtuozzo.com, ktsanaktsidis@zendesk.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, manfred@colorfullife.com, mhocko@suse.com, nborisov@suse.com, penguin-kernel@I-love.SAKURA.ne.jp, rppt@linux.vnet.ibm.com, sfr@canb.auug.org.au, shakeelb@google.com, syzkaller-bugs@googlegroups.com, vdavydov.dev@gmail.com Subject: Re: general protection fault in put_pid Message-ID: <20190327202712.GT10344@bombadil.infradead.org> References: <00000000000051ee78057cc4d98f@google.com> <000000000000c58fcf058519059e@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000c58fcf058519059e@google.com> User-Agent: Mutt/1.9.2 (2017-12-15) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Mar 27, 2019 at 01:10:01PM -0700, syzbot wrote: > syzbot has bisected this bug to: > > commit b9b8a41adeff5666b402996020b698504c927353 > Author: Dan Carpenter > Date: Mon Aug 20 08:25:33 2018 +0000 > > btrfs: use after free in btrfs_quota_enable Not plausible. Try again.