FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5946 at kernel/events/core.c:2045 perf_group_attach+0x396/0x450 kernel/events/core.c:2045
Modules linked in:
CPU: 1 PID: 5946 Comm: syz-executor.3 Not tainted 5.10.105 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:perf_group_attach+0x396/0x450 kernel/events/core.c:2045
Code: 48 c1 e8 03 42 80 3c 20 00 75 5f 48 8b 5b 10 48 83 eb 10 48 39 dd 75 d4 5b 5d 41 5c 41 5d 41 5e e9 8f e5 f2 ff e8 8a e5 f2 ff <0f> 0b e9 b1 fd ff ff 48 c7 c7 fc 4d 47 85 e8 77 3e 1e 00 e9 b9 fc
RSP: 0018:ffff88804ccb7cb0 EFLAGS: 00010012
RAX: 0000000000001c1b RBX: ffff88803e3cd000 RCX: ffffc9000f666000
RDX: 0000000000040000 RSI: ffffffff814cc446 RDI: ffff88803e3cd218
RBP: ffff88801e9dd000 R08: 0000000000000001 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888044e04400
R13: 0000000000000000 R14: ffff888043f62008 R15: 0000000000000000
FS:  00007f63c6342700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556392c98 CR3: 0000000043cc8000 CR4: 0000000000350ee0
Call Trace:
 add_event_to_ctx kernel/events/core.c:2688 [inline]
 perf_install_in_context+0x44d/0x550 kernel/events/core.c:2963
 __do_sys_perf_event_open+0x1cee/0x2d00 kernel/events/core.c:12134
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f63c8dccb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f63c6342188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f63c8edff60 RCX: 00007f63c8dccb19
RDX: 0000000000000000 RSI: 00000000000000a9 RDI: 0000000020001d80
RBP: 00007f63c8e26f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7ed8942f R14: 00007f63c6342300 R15: 0000000000022000
irq event stamp: 4272
hardirqs last  enabled at (4271): [<ffffffff81351404>] generic_exec_single+0x214/0x300 kernel/smp.c:295
hardirqs last disabled at (4272): [<ffffffff83deaa4e>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline]
hardirqs last disabled at (4272): [<ffffffff83deaa4e>] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167
softirqs last  enabled at (3980): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (3971): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
---[ end trace 731df8792b54ec56 ]---

======================================================