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AJvYcCUKCV+SenSshSi4GFc48BHcxa/5jCaFz81IpDxc4teyDpjbSytCrjrD9qTUMDGwoDz67ZUEDdTZ+g==@vger.kernel.org X-Gm-Message-State: AOJu0YyuzpjMPioqt1/fDjZXX8mzys948L6s5JDH3QJ8Dg5J49g1KMSU WCuOTXliV6CdCs/lV8WXAtsGxsiIWHGQYqF+ABvRxsXJNU1ku1+8hzylXigTuQcxG8alh8cz0IE KIeGbKNt4n/wP1JoHWfBTuDkCG5DRq7RFtLBP X-Gm-Gg: ASbGncuUgFDV0uzq8KQIRv54QIVTT4Ipock7Y0xJykWqO2ujZUavyjZFzsmzPA8GkWO M5ge574zUGa481Zwig1QAd2qUi5VSDcgSMiyGKA== X-Google-Smtp-Source: AGHT+IGRpkdDBASQbA4W9W4t1BgK2dSzLTzvJG9Vc9UhANfCeYe2U4Z/qo2tMOoP0ps7OytKBednRAPV6i81BAZBwaE= X-Received: by 2002:a05:6402:2790:b0:5d0:b51c:8478 with SMTP id 4fb4d7f45d1cf-5d63c3158c3mr1721305a12.12.1734092352701; Fri, 13 Dec 2024 04:19:12 -0800 (PST) Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <675b61aa.050a0220.599f4.00bb.GAE@google.com> <675c1dc6.050a0220.17d782.000c.GAE@google.com> In-Reply-To: <675c1dc6.050a0220.17d782.000c.GAE@google.com> From: Eric Dumazet Date: Fri, 13 Dec 2024 13:19:01 +0100 Message-ID: Subject: Re: [syzbot] [tipc?] kernel BUG in __pskb_pull_tail To: syzbot Cc: alsa-devel@alsa-project.org, asml.silence@gmail.com, axboe@kernel.dk, clm@fb.com, davem@davemloft.net, dennis.dalessandro@cornelisnetworks.com, dsterba@suse.com, eric.dumazet@gmail.com, horms@kernel.org, io-uring@vger.kernel.org, jasowang@redhat.com, jdamato@fastly.com, jgg@ziepe.ca, jmaloy@redhat.com, josef@toxicpanda.com, kuba@kernel.org, kvm@vger.kernel.org, leon@kernel.org, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, miklos@szeredi.hu, mst@redhat.com, netdev@vger.kernel.org, pabeni@redhat.com, pbonzini@redhat.com, perex@perex.cz, stable@vger.kernel.org, stefanha@redhat.com, syzkaller-bugs@googlegroups.com, tipc-discussion@lists.sourceforge.net, tiwai@suse.com, viro@zeniv.linux.org.uk, virtualization@lists.linux-foundation.org, ying.xue@windriver.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Dec 13, 2024 at 12:43=E2=80=AFPM syzbot wrote: > > syzbot has bisected this issue to: > > commit de4f5fed3f231a8ff4790bf52975f847b95b85ea > Author: Jens Axboe > Date: Wed Mar 29 14:52:15 2023 +0000 > > iov_iter: add iter_iovec() helper > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D1742473058= 0000 > start commit: 96b6fcc0ee41 Merge branch 'net-dsa-cleanup-eee-part-1' > git tree: net-next > final oops: https://syzkaller.appspot.com/x/report.txt?x=3D14c2473058= 0000 > console output: https://syzkaller.appspot.com/x/log.txt?x=3D10c2473058000= 0 > kernel config: https://syzkaller.appspot.com/x/.config?x=3D1362a5aee630f= f34 > dashboard link: https://syzkaller.appspot.com/bug?extid=3D4f66250f6663c0c= 1d67e > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D166944f8580= 000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D1287ecdf98000= 0 > > Reported-by: syzbot+4f66250f6663c0c1d67e@syzkaller.appspotmail.com > Fixes: de4f5fed3f23 ("iov_iter: add iter_iovec() helper") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisect= ion Great, thanks syzbot. Patch is under review : https://patchwork.kernel.org/project/netdevbpf/patch/20241212222247.724674-= 1-edumazet@google.com/