From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA86CC43461 for ; Thu, 10 Sep 2020 21:55:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BD1320719 for ; Thu, 10 Sep 2020 21:55:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728547AbgIJVmq (ORCPT ); Thu, 10 Sep 2020 17:42:46 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:44831 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730771AbgIJMiX (ORCPT ); Thu, 10 Sep 2020 08:38:23 -0400 Received: by mail-il1-f200.google.com with SMTP id j11so4381586ilr.11 for ; Thu, 10 Sep 2020 05:38:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=VwrlinUd9kcwoUzQiQFmPRuCi3c6IG53KKTkPvCrpzw=; b=a4+7j8ckCBOZvmhs3IXT8YVx8gqX0+042DvfpUJCPQ8tD/z0pAtIT9ehWbhu7Z5XTh 2uluTko+7TkE/VA+NRl53gIhD8SYqWgyb0LWdFud2nJzlMmi6Xdl2dcGJvVrenK0MDZ7 WAv/oiHWIEsgIRGQADFgHDSj9ttI9Xouu/jAGGUwAJJ1CoJO6Kf7+qLePK4yiHcKXi7i PJ/BLuS9eIZYlAaWebeOC6JWfm6Nk1Nn0J2ToZxrQtSvC14amQJvRc/waLSEZfDDJ2g5 SR5xzHjjRKHxAbD05QLggtDYpITIQykQbRmweJ14ib2ZI6RXfBF942p52Gi1xgoDcuuy AwTw== X-Gm-Message-State: AOAM532ISjIScopfpsRDeRTKqdIeCNz4USQcFiw3v2ZE0OrfQgGwb6vE sbFiROv4hQnkN4R6/Ky+GGvZWjiWfOYgLOma2NjzznaPC0i6 X-Google-Smtp-Source: ABdhPJyjTYvh1M3ybPxkFS58uNVt6Y64hVVYzYW7pgEStSABBQd+BfOcqLa5rX1BCN4hHSH1erBwZ1TTwM4QYfGq6hWE7lc4nO1t MIME-Version: 1.0 X-Received: by 2002:a92:d07:: with SMTP id 7mr4985339iln.243.1599741499410; Thu, 10 Sep 2020 05:38:19 -0700 (PDT) Date: Thu, 10 Sep 2020 05:38:19 -0700 In-Reply-To: <000000000000a74731059f545387@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ce0feb05aef4d7a1@google.com> Subject: Re: WARNING in tracepoint_probe_register_prio (4) From: syzbot To: allison@lohutok.net, gregkh@linuxfoundation.org, gustavo@embeddedor.com, linux-kernel@vger.kernel.org, mathieu.desnoyers@polymtl.ca, mingo@elte.hu, netdev@vger.kernel.org, rfontana@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 34d4ddd3 Merge tag 'linux-kselftest-5.9-rc5' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13ab2b7d900000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f5c353182ed6199 dashboard link: https://syzkaller.appspot.com/bug?extid=1b2f76c6fb6f549f728b compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145c4735900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12d31621900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1b2f76c6fb6f549f728b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6978 at kernel/tracepoint.c:243 func_add kernel/tracepoint.c:147 [inline] WARNING: CPU: 1 PID: 6978 at kernel/tracepoint.c:243 tracepoint_add_func kernel/tracepoint.c:241 [inline] WARNING: CPU: 1 PID: 6978 at kernel/tracepoint.c:243 tracepoint_probe_register_prio+0x4ac/0x590 kernel/tracepoint.c:315 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6978 Comm: syz-executor432 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:tracepoint_add_func kernel/tracepoint.c:147 [inline] RIP: 0010:tracepoint_probe_register_prio+0x4ac/0x590 kernel/tracepoint.c:315 Code: 48 89 df e8 16 b2 1f 00 89 c5 31 ff 89 c6 e8 1b 7c fe ff 85 ed 7e 1a e8 02 78 fe ff eb 20 e8 fb 77 fe ff 49 c7 c7 ef ff ff ff <0f> 0b 44 89 fd eb 4f e8 e8 77 fe ff 48 89 df e8 30 b8 1f 00 31 ed RSP: 0018:ffffc900055a7c38 EFLAGS: 00010293 RAX: ffffffff81768595 RBX: dffffc0000000000 RCX: ffff88808d43e1c0 RDX: 0000000000000000 RSI: 000000000000000a RDI: 000000000000000a RBP: ffff88809d603660 R08: ffffffff8176831e R09: fffffbfff13164de R10: fffffbfff13164de R11: 0000000000000000 R12: 000000000000000a R13: 0000000000000003 R14: 00000000ffffffff R15: ffffffffffffffef bpf_raw_tracepoint_open kernel/bpf/syscall.c:2741 [inline] __do_sys_bpf+0x63ae/0x11060 kernel/bpf/syscall.c:4220 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446bd9 Code: e8 8c e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6d31c3eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446bd9 RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000011 RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c R13: 0000000020000100 R14: 00000000004aebc0 R15: 0000000000000064 Kernel Offset: disabled Rebooting in 86400 seconds..