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[193.33.64.87]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-57aae0c9f95sm4516437a12.28.2024.06.08.11.19.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 08 Jun 2024 11:19:47 -0700 (PDT) Date: Sat, 08 Jun 2024 21:19:42 +0300 From: Nikolay Aleksandrov To: syzbot , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: =?US-ASCII?Q?Re=3A_=5Bsyzbot=5D_=5Bnet=3F=5D_WARNING=3A_suspici?= =?US-ASCII?Q?ous_RCU_usage_in_br=5Fmst=5Fset=5Fstate_=282=29?= User-Agent: K-9 Mail for Android In-Reply-To: <000000000000cfb785061a64415a@google.com> References: <000000000000cfb785061a64415a@google.com> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 7FF7440014 X-Rspam-User: X-Rspamd-Server: rspam12 X-Stat-Signature: uehb3so974ifb7uuk8nw1d4q9ctz916i X-HE-Tag: 1717870789-611148 X-HE-Meta: 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 HhYgeWc4 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 BQkXDh1K 3wi3+Fy2qSnYrezIsD9UjrVUHcsuaXHQKZpJz0ZH8Ijv70Gny/C1P6MpkRoMcj454IXKaqMjfCFFYCeha5ugIg== 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: List-Subscribe: List-Unsubscribe: On June 8, 2024 8:29:23 PM GMT+03:00, syzbot wrote: >Hello, > >syzbot found the following issue on: > >HEAD commit: 8a92980606e3 Merge tag 'scsi-fixes' of git://git=2Ekernel= =2Eor=2E=2E >git tree: upstream >console output: https://syzkaller=2Eappspot=2Ecom/x/log=2Etxt?x=3D14f9eab= a980000 >kernel config: https://syzkaller=2Eappspot=2Ecom/x/=2Econfig?x=3D9a6ac42= 77fffe3ea >dashboard link: https://syzkaller=2Eappspot=2Ecom/bug?extid=3D9bbe2de1bc9= d470eb5fe >compiler: Debian clang version 15=2E0=2E6, GNU ld (GNU Binutils for= Debian) 2=2E40 > >Unfortunately, I don't have any reproducer for this issue yet=2E > >Downloadable assets: >disk image: https://storage=2Egoogleapis=2Ecom/syzbot-assets/e77750e429bf= /disk-8a929806=2Eraw=2Exz >vmlinux: https://storage=2Egoogleapis=2Ecom/syzbot-assets/910e4410cf78/vm= linux-8a929806=2Exz >kernel image: https://storage=2Egoogleapis=2Ecom/syzbot-assets/85542820b0= d5/bzImage-8a929806=2Exz > >IMPORTANT: if you fix the issue, please add the following tag to the comm= it: >Reported-by: syzbot+9bbe2de1bc9d470eb5fe@:=20 Oh, my fix was incomplete, I should've changed the deref helper as well=2E I will send a patch tomorrow=2E Thanks!