WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 cpu_max_bits_warn include/linux/cpumask.h:121 [inline]
WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 cpumask_check include/linux/cpumask.h:128 [inline]
WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 cpumask_test_cpu include/linux/cpumask.h:344 [inline]
WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 io_sq_offload_start fs/io_uring.c:2244 [inline]
WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 io_uring_create fs/io_uring.c:2864 [inline]
WARNING: CPU: 1 PID: 19720 at include/linux/cpumask.h:121 io_uring_setup+0x1399/0x1ac0 fs/io_uring.c:2916
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 19720 Comm: syz-executor.5 Not tainted 5.1.0-rc7+ #95
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+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:cpu_max_bits_warn include/linux/cpumask.h:121 [inline]
RIP: 0010:cpumask_check include/linux/cpumask.h:128 [inline]
RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:344 [inline]
RIP: 0010:io_sq_offload_start fs/io_uring.c:2244 [inline]
RIP: 0010:io_uring_create fs/io_uring.c:2864 [inline]
RIP: 0010:io_uring_setup+0x1399/0x1ac0 fs/io_uring.c:2916
Code: 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 f8 fd ff ff 4c 89 f7 e8 b1 7d e0 ff e9 eb fd ff ff e8 e7 66 a8 ff <0f> 0b e9 27 f7 ff ff e8 db 66 a8 ff 4c 89 ff e8 63 3b 7a ff e9 fd
RSP: 0018:ffff88805e7dfdc8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 00000000fffffffd RCX: ffffc90012ac9000
RDX: 00000000000063ed RSI: ffffffff81c825c9 RDI: 0000000000000005
RBP: ffff88805e7dfef0 R08: ffff8880574ce000 R09: ffffed1011678f24
R10: ffffed1011678f23 R11: ffff88808b3c791f R12: ffff888052ce2600
R13: ffff88805e7dfec8 R14: ffff888052ce2640 R15: ffff888052ce2654
 __do_sys_io_uring_setup fs/io_uring.c:2929 [inline]
 __se_sys_io_uring_setup fs/io_uring.c:2926 [inline]
 __x64_sys_io_uring_setup+0x54/0x80 fs/io_uring.c:2926
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f64c5837c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000458da9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000064
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f64c58386d4
R13: 00000000004bffde R14: 00000000004d2318 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..