------------[ cut here ]------------ WARNING: CPU: 1 PID: 9439 at kernel/entry/common.c:364 irqentry_exit+0x47/0x90 kernel/entry/common.c:368 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9439 Comm: syz-executor.2 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:irqentry_exit+0x47/0x90 kernel/entry/common.c:364 Code: 27 f6 87 91 00 00 00 02 74 18 40 84 f6 75 3b 65 8b 05 ed e3 dd 77 a9 ff ff ff 7f 74 11 e9 51 f9 57 f9 40 84 f6 75 3f c3 eb 89 <0f> 0b eb ca e8 d0 9b 3f f9 65 48 8b 04 25 c0 fe 01 00 48 8b 00 a8 RSP: 0018:ffffc90003c86a50 EFLAGS: 00010002 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc900072e1000 RDX: 0000000000040000 RSI: 0000000000000000 RDI: ffffc90003c86a88 RBP: ffffc90003c86a88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 exc_page_fault+0xd9/0x190 arch/x86/mm/fault.c:1485 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:__softirqentry_text_end+0x1f/0x55 Code: 54 48 8b 4c 24 20 e9 cf fc ff ff 0f 01 f8 0f 1f 80 00 00 00 00 31 c0 8e e8 e9 df 03 e0 ff b8 f2 ff ff ff 31 d2 e9 db c4 c3 ff <41> bf f2 ff ff ff 31 c0 e9 ab 3c a1 f8 41 bf f2 ff ff ff 31 ed e9 RSP: 0018:ffffc90003c86b30 EFLAGS: 00050046 RAX: 0000000000040000 RBX: ffffc90003c86bf0 RCX: ffffc900072e1000 RDX: 0000000000040000 RSI: ffffffff810147ee RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880574d4687 R10: 00000000ffffdff8 R11: 0000000000000001 R12: ffffc90003c86bfc R13: dffffc0000000000 R14: ffff8880574d4680 R15: 0000000000000000 get_perf_callchain+0x324/0x640 kernel/events/callchain.c:221 perf_callchain+0x165/0x1c0 kernel/events/core.c:6985 perf_prepare_sample+0x8fd/0x1d40 kernel/events/core.c:7012 __perf_event_output kernel/events/core.c:7170 [inline] perf_event_output_forward+0xf3/0x270 kernel/events/core.c:7190 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:8845 perf_swevent_overflow kernel/events/core.c:8921 [inline] perf_swevent_event+0x347/0x550 kernel/events/core.c:8949 perf_tp_event+0x2e4/0xb60 kernel/events/core.c:9377 perf_trace_run_bpf_submit+0x11c/0x210 kernel/events/core.c:9351 perf_trace_lock_acquire+0x34c/0x550 include/trace/events/lock.h:13 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x37c/0xaf0 kernel/locking/lockdep.c:5003 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] is_bpf_text_address+0x36/0x160 kernel/bpf/core.c:704 kernel_text_address kernel/extable.c:151 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:120 __kernel_text_address+0x9/0x30 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:317 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:312 arch_stack_walk+0x97/0xf0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123 save_trace+0x43/0xba0 kernel/locking/lockdep.c:513 check_prev_add kernel/locking/lockdep.c:2539 [inline] check_prevs_add kernel/locking/lockdep.c:2601 [inline] validate_chain kernel/locking/lockdep.c:3218 [inline] __lock_acquire+0x4aa5/0x5780 kernel/locking/lockdep.c:4441 lock_acquire+0x1f3/0xaf0 kernel/locking/lockdep.c:5029 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] pgd_dtor arch/x86/mm/pgtable.c:148 [inline] pgd_free+0x25/0x220 arch/x86/mm/pgtable.c:474 mm_free_pgd kernel/fork.c:630 [inline] __mmdrop+0xcb/0x3a0 kernel/fork.c:681 mmdrop include/linux/sched/mm.h:49 [inline] finish_task_switch+0x4ab/0x790 kernel/sched/core.c:3636 context_switch kernel/sched/core.c:3781 [inline] __schedule+0xed1/0x2280 kernel/sched/core.c:4527 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:4683 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:40 smp_call_function_single+0x470/0x500 kernel/smp.c:384 task_function_call+0xd7/0x160 kernel/events/core.c:116 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2895 __do_sys_perf_event_open+0x1c31/0x2cb0 kernel/events/core.c:11992 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7fc9549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f55c30bc EFLAGS: 00000296 ORIG_RAX: 0000000000000150 RAX: ffffffffffffffda RBX: 0000000020000180 RCX: 0000000000000000 RDX: 00000000ffffffff RSI: 00000000ffffffff RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..