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Tue, 13 Oct 2020 23:08:10 +0000 (GMT) Message-ID: <95f493a39c2a6cc2f45da2f7fe73d7febee927df.camel@linux.ibm.com> Subject: Re: general protection fault in scsi_queue_rq From: James Bottomley Reply-To: jejb@linux.ibm.com To: syzbot , hare@suse.de, hch@lst.de, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, syzkaller-bugs@googlegroups.com Date: Tue, 13 Oct 2020 16:08:09 -0700 In-Reply-To: <00000000000047627e05b17a6ec9@google.com> References: <00000000000047627e05b17a6ec9@google.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-10-13_16:2020-10-13,2020-10-13 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 spamscore=0 suspectscore=0 phishscore=0 mlxscore=0 priorityscore=1501 clxscore=1011 lowpriorityscore=0 mlxlogscore=999 impostorscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010130160 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2020-10-12 at 07:51 -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: e4fb79c7 Add linux-next specific files for 20201008 > git tree: linux-next > console output: > https://syzkaller.appspot.com/x/log.txt?x=125c9a9f900000 > kernel config: > https://syzkaller.appspot.com/x/.config?x=568d41fe4341ed0f > dashboard link: > https://syzkaller.appspot.com/bug?extid=0796b72dc61f223d8cc5 > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: > https://syzkaller.appspot.com/x/repro.syz?x=12582fe7900000 > C reproducer: > https://syzkaller.appspot.com/x/repro.c?x=124ac7d0500000 > > The issue was bisected to: > > commit 2ceda20f0a99a74a82b78870f3b3e5fa93087a7f > Author: Christoph Hellwig > Date: Mon Oct 5 08:41:23 2020 +0000 > > scsi: core: Move command size detection out of the fast path #syz: test git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-misc