From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2EE8F15CD78 for ; Sun, 11 Aug 2024 22:43:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723416184; cv=none; b=ihtOHg0pPfl2HZklTitJFp1o2t2Z3xonWli0W7Rwb6J3FHyLCOzpXwJ6hI2vsnhMS3KfW7f6GJj+Gl2j9vmKUy/6hLhQzD5EwX7myYCgg7O0DOnkAl4l8TRyE+I+eiP23IXB1C2TevkrZSPVPRHjN59KIrF/OSE0V/OoUjZ5fH8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723416184; c=relaxed/simple; bh=L4Lv+V3TAvpIqLu3MSz4+YFRq/dbvUKkqeQBE+ixKpw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=uRQe39dxrJIBpEBACkFU8Gm4BjTejfsP4IWcggor0riQ4DaK6koWQtJ/UkEq5WMwdEPuJR8IQqpjcKhaFpv8ULz9CrHvahjkKLu+wnx5aYYLkpn/aa9JdCKLJbt+66XXIar0YOwCJxKxuONSXnHvjrQPW8wbyGFzT3gBaYKzVvs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-39b0bee2173so53564755ab.2 for ; Sun, 11 Aug 2024 15:43:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723416182; x=1724020982; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=vVqFzBryEujNvLyT47tPqWQBFIh9FtkAq+KHfk8fPj4=; b=dAG8+9oMxe6eZZkr6WWVuZNsN92OdiiTzoQl4JPog1HfM1LosurBE9zf0JjT7iB9gL j+wY++zJaNoZNBW+X8WQtN/IfTZHHIWU8MMQbm/zG4re4rHrs9JszsXT3UcOTHeQjBY0 Sucfn9P/8TQwxZQaAE8cQSAVWZAc5AyABlGUxALCs308my4UPgcz+C2KLmPVXk3Gb6Oe SGOPNNosQAZi1MXHaBxhuPYVxSfSkXIT7vpMYapNrxnXUXxMvdG5hp8HDsoS7JReEVfT w7D53+iXDDgYVGii8SAFGXnrzlYKSM8ctvG2hv7pK/ROZMoVw7aD1n5JXrvB4p7RuEi2 2NBg== X-Forwarded-Encrypted: i=1; AJvYcCU/ZaEtv4zcj8D/yZ0yWyJ3ajUiA+msWq/KSJicOYqe7RhGy6T7/UWoXmB/48QhJ23Svp8c7lBN0I56T/ptsKuGkPzmZg== X-Gm-Message-State: AOJu0Yww583YcU3oWo4r6HGtH9F6qKU8j7j4SL0FQ90bGHs7YMefiEiX 1XknAzRVWRMQcz1TR8EWXTVkguRAGGmdz7GpMzKkoPQB1IVRfoiNiQxTDiTZOn7Sf76ffZ4CXbm +xruhmMTMj1sbetX6VZru6dhURSlquKiMlreDfBT1mEnjKdsyVYCx4ic= X-Google-Smtp-Source: AGHT+IF7jkF4oBqJtIkn6QuGeZP/SaW+o6WVuB+UpJ1Q7K+E62/xT80ADTCE4nj7LwY0M348sXjLlvffGGJyVNNQbX8hhCmM1l+c Precedence: bulk X-Mailing-List: v9fs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:219d:b0:376:1fae:4604 with SMTP id e9e14a558f8ab-39b8709bc57mr6384475ab.4.1723416182349; Sun, 11 Aug 2024 15:43:02 -0700 (PDT) Date: Sun, 11 Aug 2024 15:43:02 -0700 In-Reply-To: <0000000000002fd2de0618de2e65@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005971a8061f70191d@google.com> Subject: Re: [syzbot] [fs?] general protection fault in iter_file_splice_write From: syzbot To: asmadeus@codewreck.org, brauner@kernel.org, dhowells@redhat.com, eadavis@qq.com, ericvh@kernel.org, jack@suse.cz, jlayton@kernel.org, linux-afs@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux_oss@crudebyte.com, lizhi.xu@windriver.com, lucho@ionkov.net, marc.dionne@auristor.com, netfs@lists.linux.dev, syzkaller-bugs@googlegroups.com, v9fs@lists.linux.dev, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 2df86547b23dabcd02ab000a24ed7813606c269f Author: David Howells Date: Fri Mar 8 12:36:05 2024 +0000 netfs: Cut over to using new writeback code bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=148b014b980000 start commit: 5189dafa4cf9 Merge tag 'nfsd-6.11-1' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=168b014b980000 console output: https://syzkaller.appspot.com/x/log.txt?x=128b014b980000 kernel config: https://syzkaller.appspot.com/x/.config?x=e8a2eef9745ade09 dashboard link: https://syzkaller.appspot.com/bug?extid=d2125fcb6aa8c4276fd2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16828c5d980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=103c7805980000 Reported-by: syzbot+d2125fcb6aa8c4276fd2@syzkaller.appspotmail.com Fixes: 2df86547b23d ("netfs: Cut over to using new writeback code") For information about bisection process see: https://goo.gl/tpsmEJ#bisection