From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752306AbeERK3D (ORCPT ); Fri, 18 May 2018 06:29:03 -0400 Received: from mail-io0-f197.google.com ([209.85.223.197]:52222 "EHLO mail-io0-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751665AbeERK3C (ORCPT ); Fri, 18 May 2018 06:29:02 -0400 X-Google-Smtp-Source: AB8JxZrDgD6aiKvdgfO/88nrGnUW7Iy8i0hoSbLPVy08IG86DICI682kI1nskhZPyRVy6rJ0EY3ENoQVSgSJNdBxN1arVMhFYrmw MIME-Version: 1.0 Date: Fri, 18 May 2018 03:29:01 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ab6f84056c786b93@google.com> Subject: WARNING in tracepoint_probe_register_prio (3) From: syzbot To: linux-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, paulmck@linux.vnet.ibm.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: a78622932c27 bpf: sockmap, fix double-free git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=1305ba77800000 kernel config: https://syzkaller.appspot.com/x/.config?x=b632d8e2c2ab2c1 dashboard link: https://syzkaller.appspot.com/bug?extid=774fddf07b7ab29a1e55 compiler: gcc (GCC) 8.0.1 20180413 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+774fddf07b7ab29a1e55@syzkaller.appspotmail.com WARNING: CPU: 0 PID: 11734 at kernel/tracepoint.c:210 tracepoint_add_func kernel/tracepoint.c:210 [inline] WARNING: CPU: 0 PID: 11734 at kernel/tracepoint.c:210 tracepoint_probe_register_prio+0x3b4/0xa50 kernel/tracepoint.c:282 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 11734 Comm: syz-executor1 Not tainted 4.17.0-rc4+ #13 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+0x1b9/0x294 lib/dump_stack.c:113 panic+0x22f/0x4de kernel/panic.c:184 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:tracepoint_add_func kernel/tracepoint.c:210 [inline] RIP: 0010:tracepoint_probe_register_prio+0x3b4/0xa50 kernel/tracepoint.c:282 RSP: 0018:ffff8801c7977438 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff8801c7977518 RCX: ffffc900080f9000 RDX: 00000000000012a1 RSI: ffffffff817a9d34 RDI: ffff8801c29ddab0 RBP: ffff8801c7977540 R08: ffff880197448700 R09: fffffbfff11b803c R10: ffff8801c7977428 R11: ffffffff88dc01e7 R12: 00000000ffffffef R13: 00000000ffffffff R14: ffffffff81516c90 R15: 0000000000000001 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:303 trace_event_reg+0x19a/0x350 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:123 [inline] perf_trace_event_init+0x4fe/0x990 kernel/trace/trace_event_perf.c:198 perf_trace_init+0x186/0x250 kernel/trace/trace_event_perf.c:222 perf_tp_event_init+0xa6/0x120 kernel/events/core.c:8337 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9734 perf_init_event kernel/events/core.c:9772 [inline] perf_event_alloc.part.91+0x1248/0x3090 kernel/events/core.c:10038 perf_event_alloc kernel/events/core.c:10394 [inline] __do_sys_perf_event_open+0xa8a/0x2fa0 kernel/events/core.c:10495 __se_sys_perf_event_open kernel/events/core.c:10384 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10384 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f136b4f5c68 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f136b4f66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002001d000 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000014 R13: 000000000000050c R14: 00000000006fb9c0 R15: 0000000000000003 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot.