------------[ cut here ]------------ WARNING: CPU: 3 PID: 31924 at arch/x86/entry/common.c:692 idtentry_exit+0x4a/0x90 arch/x86/entry/common.c:696 Kernel panic - not syncing: panic_on_warn set ... CPU: 3 PID: 31924 Comm: syz-executor.2 Not tainted 5.8.0-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+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x45 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:547 RIP: 0010:idtentry_exit+0x4a/0x90 arch/x86/entry/common.c:692 Code: 91 00 00 00 02 74 18 40 84 f6 75 3e 65 8b 05 6d 3b 19 78 a9 ff ff ff 7f 74 14 e9 51 fc 90 f9 40 84 f6 75 42 c3 e9 86 fc ff ff <0f> 0b eb c7 e8 3d 1b 79 f9 65 48 8b 04 25 00 ff 01 00 48 8b 00 a8 RSP: 0018:ffffc900078f72a0 EFLAGS: 00010002 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc90020a06000 RDX: 0000000000040000 RSI: 0000000000000000 RDI: ffffc900078f72d8 RBP: ffffc900078f72d8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 exc_page_fault+0xc2/0x160 arch/x86/mm/fault.c:1421 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:549 RIP: 0010:__softirqentry_text_end+0x1f/0x55 Code: ff 48 89 ef e8 be 78 93 f9 eb 8e 0f 01 f8 0f 1f 80 00 00 00 00 31 c0 8e e8 e9 be 04 e0 ff b8 f2 ff ff ff 31 d2 e9 b4 b7 c8 ff <41> bf f2 ff ff ff 31 c0 e9 7a 43 e1 f8 41 bf f2 ff ff ff 31 ed e9 RSP: 0018:ffffc900078f7380 EFLAGS: 00050046 RAX: 000000000000b250 RBX: ffffc900078f7430 RCX: ffffc90020a06000 RDX: 0000000000040000 RSI: ffffffff81014dbe RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880287dcd47 R10: 00000000ffffdff8 R11: 0000000000000001 R12: ffffc900078f743c R13: dffffc0000000000 R14: ffff8880287dcd40 R15: 0000000000000000 get_perf_callchain+0x4bc/0x880 kernel/events/callchain.c:223 perf_callchain+0x165/0x1c0 kernel/events/core.c:6986 perf_prepare_sample+0x8fd/0x1d40 kernel/events/core.c:7013 __perf_event_output kernel/events/core.c:7171 [inline] perf_event_output_forward+0xf3/0x270 kernel/events/core.c:7191 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:8846 perf_swevent_overflow kernel/events/core.c:8922 [inline] perf_swevent_event+0x347/0x550 kernel/events/core.c:8950 perf_tp_event+0x2e4/0xb50 kernel/events/core.c:9378 perf_trace_run_bpf_submit+0x11c/0x200 kernel/events/core.c:9352 perf_trace_lock+0x2e2/0x4a0 include/trace/events/lock.h:39 trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0x571/0x8e0 kernel/locking/lockdep.c:5022 __mutex_unlock_slowpath+0x81/0x610 kernel/locking/mutex.c:1228 __do_sys_perf_event_open+0x1c5a/0x2b50 kernel/events/core.c:11980 do_syscall_32_irqs_on+0x3f/0x60 arch/x86/entry/common.c:428 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline] do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f3b569 Code: c4 01 10 03 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 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:00000000f55350bc EFLAGS: 00000296 ORIG_RAX: 0000000000000150 RAX: ffffffffffffffda RBX: 000000002025c000 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 Kernel Offset: disabled Rebooting in 86400 seconds..