UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.0.0-rc7-next-20220930 #1 Not tainted
------------------------------------------------------
syz-executor.7/3852 is trying to acquire lock:
ffffffff853faab8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70

but task is already holding lock:
ffff88803f75d020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x2a0/0x6e0

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&ctx->lock){....}-{2:2}:
       _raw_spin_lock+0x2a/0x40
       __perf_event_task_sched_out+0x53b/0x18d0
       __schedule+0xedd/0x2470
       schedule+0xda/0x1b0
       exit_to_user_mode_prepare+0x114/0x1a0
       syscall_exit_to_user_mode+0x19/0x40
       do_syscall_64+0x48/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> #2 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x30/0x40
       raw_spin_rq_lock_nested+0x1e/0x30
       task_fork_fair+0x63/0x4d0
       sched_cgroup_fork+0x3d0/0x540
       copy_process+0x4183/0x6e20
       kernel_clone+0xe7/0x890
       user_mode_thread+0xad/0xf0
       rest_init+0x24/0x250
       arch_call_rest_init+0xf/0x14
       start_kernel+0x4c6/0x4eb
       secondary_startup_64_no_verify+0xe0/0xeb

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       _raw_spin_lock_irqsave+0x39/0x60
       try_to_wake_up+0xab/0x1930
       up+0x75/0xb0
       __up_console_sem+0x6e/0x80
       console_unlock+0x46a/0x590
       do_con_write+0xc05/0x1d50
       con_write+0x21/0x40
       n_tty_write+0x4d4/0xfe0
       file_tty_write.constprop.0+0x455/0x8a0
       vfs_write+0x9c3/0xd90
       ksys_write+0x127/0x250
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> #0 ((console_sem).lock){....}-{2:2}:
       __lock_acquire+0x2a02/0x5e70
       lock_acquire+0x1a2/0x530
       _raw_spin_lock_irqsave+0x39/0x60
       down_trylock+0xe/0x70
       __down_trylock_console_sem+0x3b/0xd0
       vprintk_emit+0x16b/0x560
       vprintk+0x84/0xa0
       _printk+0xba/0xf1
       report_bug.cold+0x72/0xab
       handle_bug+0x3c/0x70
       exc_invalid_op+0x14/0x50
       asm_exc_invalid_op+0x16/0x20
       event_filter_match+0x422/0x660
       merge_sched_in+0x107/0x1110
       visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
       ctx_sched_in+0x2e6/0x770
       perf_event_sched_in+0x58/0x80
       __perf_event_task_sched_in+0x408/0x6e0
       finish_task_switch.isra.0+0x46d/0x8a0
       __schedule+0x89b/0x2470
       preempt_schedule_common+0x45/0xc0
       __cond_resched+0x17/0x30
       kmem_cache_alloc+0x2d2/0x3e0
       ptlock_alloc+0x1d/0x70
       pte_alloc_one+0x68/0x200
       __pte_alloc+0x69/0x210
       copy_page_range+0x1bc5/0x4270
       dup_mmap+0xa4a/0xfc0
       dup_mm+0x91/0x380
       copy_process+0x6ac6/0x6e20
       kernel_clone+0xe7/0x890
       __do_sys_fork+0x7c/0xb0
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

other info that might help us debug this:

Chain exists of:
  (console_sem).lock --> &rq->__lock --> &ctx->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ctx->lock);
                               lock(&rq->__lock);
                               lock(&ctx->lock);
  lock((console_sem).lock);

 *** DEADLOCK ***

5 locks held by syz-executor.7/3852:
 #0: ffffffff85481050 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mmap+0x10b/0xfc0
 #1: ffff88800ff67858 (&mm->mmap_lock#2){++++}-{3:3}, at: dup_mmap+0x12d/0xfc0
 #2: ffff88800d24dc58 (&mm->mmap_lock/1){+.+.}-{3:3}, at: dup_mmap+0x183/0xfc0
 #3: ffff88806ce3d2e0 (&cpuctx_lock){....}-{2:2}, at: __perf_event_task_sched_in+0x28f/0x6e0
 #4: ffff88803f75d020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x2a0/0x6e0

stack backtrace:
CPU: 0 PID: 3852 Comm: syz-executor.7 Not tainted 6.0.0-rc7-next-20220930 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 check_noncircular+0x263/0x2e0
 __lock_acquire+0x2a02/0x5e70
 lock_acquire+0x1a2/0x530
 _raw_spin_lock_irqsave+0x39/0x60
 down_trylock+0xe/0x70
 __down_trylock_console_sem+0x3b/0xd0
 vprintk_emit+0x16b/0x560
 vprintk+0x84/0xa0
 _printk+0xba/0xf1
 report_bug.cold+0x72/0xab
 handle_bug+0x3c/0x70
 exc_invalid_op+0x14/0x50
 asm_exc_invalid_op+0x16/0x20
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 7b 33 f1 ff 65 8b 2d 00 9d ad 7e 31 ff 89 ee e8 1b 30 f1 ff 85 ed 0f 84 ef 00 00 00 e8 5e 33 f1 ff <0f> 0b eb 9f e8 d5 a1 23 00 e9 17 fc ff ff e8 4b 33 f1 ff 48 8d 7b
RSP: 0018:ffff888040877190 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff888040888000 RCX: 0000000000000000
RDX: ffff88801f713580 RSI: ffffffff8154d8d2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b401b R12: ffff888040888220
R13: 0000000000000000 R14: ffff8880408880a8 R15: ffff888040888220
 merge_sched_in+0x107/0x1110
 visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
 ctx_sched_in+0x2e6/0x770
 perf_event_sched_in+0x58/0x80
 __perf_event_task_sched_in+0x408/0x6e0
 finish_task_switch.isra.0+0x46d/0x8a0
 __schedule+0x89b/0x2470
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x17/0x30
 kmem_cache_alloc+0x2d2/0x3e0
 ptlock_alloc+0x1d/0x70
 pte_alloc_one+0x68/0x200
 __pte_alloc+0x69/0x210
 copy_page_range+0x1bc5/0x4270
 dup_mmap+0xa4a/0xfc0
 dup_mm+0x91/0x380
 copy_process+0x6ac6/0x6e20
 kernel_clone+0xe7/0x890
 __do_sys_fork+0x7c/0xb0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f188b373b19
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:00007f18888e9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039
RAX: ffffffffffffffda RBX: 00007f188b486f60 RCX: 00007f188b373b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f188b3cdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc58d5a19f R14: 00007f18888e9300 R15: 0000000000022000
 </TASK>
WARNING: CPU: 0 PID: 3852 at kernel/events/core.c:2233 event_filter_match+0x422/0x660
Modules linked in:
CPU: 0 PID: 3852 Comm: syz-executor.7 Not tainted 6.0.0-rc7-next-20220930 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 7b 33 f1 ff 65 8b 2d 00 9d ad 7e 31 ff 89 ee e8 1b 30 f1 ff 85 ed 0f 84 ef 00 00 00 e8 5e 33 f1 ff <0f> 0b eb 9f e8 d5 a1 23 00 e9 17 fc ff ff e8 4b 33 f1 ff 48 8d 7b
RSP: 0018:ffff888040877190 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff888040888000 RCX: 0000000000000000
RDX: ffff88801f713580 RSI: ffffffff8154d8d2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b401b R12: ffff888040888220
R13: 0000000000000000 R14: ffff8880408880a8 R15: ffff888040888220
FS:  00007f18888e9700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556f85c18 CR3: 0000000040228000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 merge_sched_in+0x107/0x1110
 visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
 ctx_sched_in+0x2e6/0x770
 perf_event_sched_in+0x58/0x80
 __perf_event_task_sched_in+0x408/0x6e0
 finish_task_switch.isra.0+0x46d/0x8a0
 __schedule+0x89b/0x2470
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x17/0x30
 kmem_cache_alloc+0x2d2/0x3e0
 ptlock_alloc+0x1d/0x70
 pte_alloc_one+0x68/0x200
 __pte_alloc+0x69/0x210
 copy_page_range+0x1bc5/0x4270
 dup_mmap+0xa4a/0xfc0
 dup_mm+0x91/0x380
 copy_process+0x6ac6/0x6e20
 kernel_clone+0xe7/0x890
 __do_sys_fork+0x7c/0xb0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f188b373b19
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:00007f18888e9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039
RAX: ffffffffffffffda RBX: 00007f188b486f60 RCX: 00007f188b373b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f188b3cdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc58d5a19f R14: 00007f18888e9300 R15: 0000000000022000
 </TASK>
irq event stamp: 1202
hardirqs last  enabled at (1201): [<ffffffff817a37ed>] memcg_account_kmem+0x3d/0x70
hardirqs last disabled at (1202): [<ffffffff8425caa5>] __schedule+0x1225/0x2470
softirqs last  enabled at (1196): [<ffffffff8116fa0b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (1191): [<ffffffff8116fa0b>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 264192
syz-executor.7 (3852) used greatest stack depth: 23952 bytes left
Process accounting resumed
Process accounting resumed