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[2620:137:e000::1:20]) by mx.google.com with ESMTP id i9-20020a17090a650900b002509d96227esi8921718pjj.173.2023.06.27.03.19.46; Tue, 27 Jun 2023 03:19:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231920AbjF0KJo (ORCPT + 99 others); Tue, 27 Jun 2023 06:09:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231889AbjF0KJM (ORCPT ); Tue, 27 Jun 2023 06:09:12 -0400 Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD4E63593; Tue, 27 Jun 2023 03:07:07 -0700 (PDT) Received: from fsav116.sakura.ne.jp (fsav116.sakura.ne.jp [27.133.134.243]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 35RA65lu033475; Tue, 27 Jun 2023 19:06:05 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav116.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav116.sakura.ne.jp); Tue, 27 Jun 2023 19:06:05 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav116.sakura.ne.jp) Received: from [192.168.1.6] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 35RA65wO033472 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Tue, 27 Jun 2023 19:06:05 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: Date: Tue, 27 Jun 2023 19:06:04 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Subject: Re: [syzbot] [tomoyo?] [bpf?] INFO: rcu detected stall in security_file_open (6) Content-Language: en-US To: Sean Young , Mauro Carvalho Chehab , linux-media@vger.kernel.org References: <0000000000001526c405ff196bc1@google.com> Cc: syzkaller-bugs@googlegroups.com, syzbot , USB list From: Tetsuo Handa In-Reply-To: <0000000000001526c405ff196bc1@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,NICE_REPLY_A, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ping? How do you plan to avoid printk() flooding? #syz dup: INFO: rcu detected stall in newfstatat (3) On 2023/06/27 18:51, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 8a28a0b6f1a1 Merge tag 'net-6.4-rc8' of git://git.kernel.o.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1335a9db280000 > kernel config: https://syzkaller.appspot.com/x/.config?x=2cbd298d0aff1140 > dashboard link: https://syzkaller.appspot.com/bug?extid=bb11ad7bb33b56ca4d4b > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16841cc0a80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16fc6e1f280000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/d02009a9822d/disk-8a28a0b6.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/f33ad4ef1182/vmlinux-8a28a0b6.xz > kernel image: https://storage.googleapis.com/syzbot-assets/f795a8ae7a8c/bzImage-8a28a0b6.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+bb11ad7bb33b56ca4d4b@syzkaller.appspotmail.com