WARNING: CPU: 0 PID: 16307 at kernel/events/core.c:1833 perf_group_attach+0x3f6/0x4c0 kernel/events/core.c:1833
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 16307 Comm: syz-executor.4 Not tainted 4.19.71 #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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
 __warn.cold+0x20/0x4a kernel/panic.c:540
kobject: 'loop1' (00000000a8814ffb): kobject_uevent_env
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
kobject: 'loop1' (00000000a8814ffb): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000267ac544): kobject_uevent_env
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
kobject: 'loop5' (00000000267ac544): fill_kobj_path: path = '/devices/virtual/block/loop5'
RIP: 0010:perf_group_attach+0x3f6/0x4c0 kernel/events/core.c:1833
Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 27 ff ff ff e8 ea 36 ec ff <0f> 0b e9 5c fd ff ff e8 3e ca 22 00 e9 b9 fc ff ff 48 c7 c7 20 fd
RSP: 0018:ffff8880903a7a70 EFLAGS: 00010012
RAX: 0000000000040000 RBX: ffff888056c2f2c0 RCX: ffffc9000e6bb000
RDX: 00000000000006d6 RSI: ffffffff817f2fa6 RDI: ffff888056c2f4d8
RBP: ffff8880903a7aa0 R08: ffff888051b96500 R09: ffffed1015d064c2
R10: ffffed1015d064c1 R11: ffff8880ae83260b R12: ffff888086239540
R13: ffffe8ffffc143d0 R14: 0000000000000000 R15: ffff8880ae832608
kobject: 'loop0' (0000000008af8e5f): kobject_uevent_env
 add_event_to_ctx kernel/events/core.c:2391 [inline]
 __perf_install_in_context+0x4b5/0x960 kernel/events/core.c:2532
kobject: 'loop0' (0000000008af8e5f): fill_kobj_path: path = '/devices/virtual/block/loop0'
 remote_function kernel/events/core.c:87 [inline]
 remote_function+0x129/0x1a0 kernel/events/core.c:67
 generic_exec_single+0x27c/0x490 kernel/smp.c:153
 smp_call_function_single+0x12d/0x420 kernel/smp.c:299
 cpu_function_call kernel/events/core.c:141 [inline]
 perf_install_in_context+0x39d/0x400 kernel/events/core.c:2573
kobject: 'loop2' (000000009c774cbb): kobject_uevent_env
 __do_sys_perf_event_open+0x1b4e/0x2a70 kernel/events/core.c:10841
kobject: 'loop2' (000000009c774cbb): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (0000000008af8e5f): kobject_uevent_env
 __se_sys_perf_event_open kernel/events/core.c:10466 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10466
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
kobject: 'loop0' (0000000008af8e5f): fill_kobj_path: path = '/devices/virtual/block/loop0'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4598e9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5f01d67c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004598e9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000140
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f5f01d686d4
R13: 00000000004c672d R14: 00000000004db7f0 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..