BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 22397 Comm: syz-executor.0 Not tainted 5.11.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 add_chain_cache kernel/locking/lockdep.c:3456 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3555 [inline]
 validate_chain kernel/locking/lockdep.c:3576 [inline]
 __lock_acquire.cold+0x36f/0x39e kernel/locking/lockdep.c:4832
 lock_acquire kernel/locking/lockdep.c:5437 [inline]
 lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
 do_write_seqcount_begin_nested include/linux/seqlock.h:520 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:545 [inline]
 psi_group_change+0x123/0x8d0 kernel/sched/psi.c:707
 psi_task_switch+0x17a/0x440 kernel/sched/psi.c:850
 psi_sched_switch kernel/sched/stats.h:144 [inline]
 __schedule+0xa06/0x21a0 kernel/sched/core.c:5059
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5326
 irqentry_exit_cond_resched kernel/entry/common.c:393 [inline]
 irqentry_exit_cond_resched kernel/entry/common.c:385 [inline]
 irqentry_exit+0x7a/0xa0 kernel/entry/common.c:423
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:lock_is_held_type+0xc2/0x100 kernel/locking/lockdep.c:5481
Code: 03 44 39 f0 41 0f 94 c4 48 c7 c7 80 ab 4b 89 e8 44 0b 00 00 b8 ff ff ff ff 65 0f c1 05 67 70 07 77 83 f8 01 75 23 ff 34 24 9d <48> 83 c4 08 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 e4 eb
RSP: 0018:ffffc900021d7aa8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000003 RCX: 1ffffffff1a07b03
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8b373860 R08: 0000000000000000 R09: ffff88802a40a1d7
R10: ffffed100548143a R11: 0000000000000001 R12: 0000000000000000
R13: ffff888078724a48 R14: 00000000ffffffff R15: ffff888078724a98
 lock_is_held include/linux/lockdep.h:271 [inline]
 ___might_sleep+0x23f/0x2c0 kernel/sched/core.c:7867
 kernfs_drain fs/kernfs/dir.c:474 [inline]
 __kernfs_remove+0x415/0xa90 fs/kernfs/dir.c:1322
 kernfs_remove_by_name_ns+0x51/0xb0 fs/kernfs/dir.c:1515
 kernfs_remove_by_name include/linux/kernfs.h:593 [inline]
 remove_files+0x96/0x1c0 fs/sysfs/group.c:28
 sysfs_remove_group+0x87/0x170 fs/sysfs/group.c:289
 br_dev_delete+0x112/0x190 net/bridge/br_if.c:385
 br_del_bridge+0xc8/0x110 net/bridge/br_if.c:486
 br_ioctl_deviceless_stub+0x28b/0x770 net/bridge/br_ioctl.c:375
 sock_ioctl+0x3e8/0x6a0 net/socket.c:1135
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e219
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007facf5170c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000020000300 RSI: 00000000000089a1 RDI: 0000000000000005
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007fffe7610adf R14: 00007facf51719c0 R15: 000000000119bf8c