------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 13920 at kernel/locking/lockdep.c:234 hlock_class kernel/locking/lockdep.c:234 [inline]
WARNING: CPU: 0 PID: 13920 at kernel/locking/lockdep.c:234 check_wait_context kernel/locking/lockdep.c:4852 [inline]
WARNING: CPU: 0 PID: 13920 at kernel/locking/lockdep.c:234 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178
Modules linked in:
CPU: 0 UID: 0 PID: 13920 Comm: syz.2.1450 Not tainted 6.14.0-rc7-syzkaller-00050-gfc444ada1310 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:hlock_class kernel/locking/lockdep.c:234 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4852 [inline]
RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178
Code: 00 00 83 3d 61 52 a0 0e 00 75 23 90 48 c7 c7 40 b2 2a 8c 48 c7 c6 40 b5 2a 8c e8 f7 bc e4 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f
RSP: 0018:ffffc9000c06f330 EFLAGS: 00010046
RAX: 4e24b811c9bd7f00 RBX: 0000000000001b20 RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 00000000000c1b20 R08: ffffffff81819e52 R09: fffffbfff1d3a69c
R10: dffffc0000000000 R11: fffffbfff1d3a69c R12: ffff8880241828d4
R13: 0000000000000000 R14: 1ffff11004830522 R15: ffff888024182910
FS:  00007f5c4c7506c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5c4c74ff98 CR3: 0000000057676000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606
 raw_spin_rq_lock kernel/sched/sched.h:1521 [inline]
 rq_lock kernel/sched/sched.h:1852 [inline]
 __schedule+0x357/0x4c90 kernel/sched/core.c:6688
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:copy_msghdr_from_user+0x4e3/0x680 net/socket.c:2511
Code: 18 48 8d 78 50 ba 10 00 00 00 31 f6 e8 d6 58 68 f8 49 83 c5 10 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 12 4c 89 ef e8 e3 55 68 f8 48 b9 00 00 00 00 00 fc ff df 44 88
RSP: 0018:ffffc9000c06f960 EFLAGS: 00000246
RAX: 1ffff9200180df3a RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000c06fd60
RBP: ffffc9000c06fa70 R08: ffffc9000c06fd5f R09: ffffc9000c06fd50
R10: dffffc0000000000 R11: fffff5200180dfac R12: 1ffff9200180df3b
R13: ffffc9000c06f9d0 R14: ffffc9000c06f9d8 R15: 1ffff9200180df00
 recvmsg_copy_msghdr net/socket.c:2759 [inline]
 ___sys_recvmsg net/socket.c:2831 [inline]
 do_recvmmsg+0x3bd/0xab0 net/socket.c:2930
 __sys_recvmmsg net/socket.c:3004 [inline]
 __do_sys_recvmmsg net/socket.c:3027 [inline]
 __se_sys_recvmmsg net/socket.c:3020 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3020
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c4b98d169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5c4c750038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f5c4bba6080 RCX: 00007f5c4b98d169
RDX: 0000000000010106 RSI: 00004000000000c0 RDI: 0000000000000003
RBP: 00007f5c4ba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5c4bba6080 R15: 00007ffeea2868d8
 </TASK>
----------------
Code disassembly (best guess):
   0:	18 48 8d             	sbb    %cl,-0x73(%rax)
   3:	78 50                	js     0x55
   5:	ba 10 00 00 00       	mov    $0x10,%edx
   a:	31 f6                	xor    %esi,%esi
   c:	e8 d6 58 68 f8       	call   0xf86858e7
  11:	49 83 c5 10          	add    $0x10,%r13
  15:	4c 89 e8             	mov    %r13,%rax
  18:	48 c1 e8 03          	shr    $0x3,%rax
  1c:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  23:	fc ff df
  26:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
* 2a:	74 12                	je     0x3e <-- trapping instruction
  2c:	4c 89 ef             	mov    %r13,%rdi
  2f:	e8 e3 55 68 f8       	call   0xf8685617
  34:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  3b:	fc ff df
  3e:	44                   	rex.R
  3f:	88                   	.byte 0x88