------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 17350 at kernel/locking/lockdep.c:234 hlock_class kernel/locking/lockdep.c:234 [inline]
WARNING: CPU: 1 PID: 17350 at kernel/locking/lockdep.c:234 check_wait_context kernel/locking/lockdep.c:4852 [inline]
WARNING: CPU: 1 PID: 17350 at kernel/locking/lockdep.c:234 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178
Modules linked in:
CPU: 1 UID: 0 PID: 17350 Comm: syz.2.2736 Not tainted 6.14.0-rc7-syzkaller #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 20 b2 2a 8c 48 c7 c6 20 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:ffffc9000bc56d90 EFLAGS: 00010046
RAX: a8c7b3bb97f01900 RBX: 0000000000001b20 RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 00000000000c1b20 R08: ffffffff81819e52 R09: 1ffff110170e519a
R10: dffffc0000000000 R11: ffffed10170e519b R12: ffff8880263f0ad4
R13: 0000000000000005 R14: 1ffff11004c7e167 R15: ffff8880263f0b38
FS:  00007f61d1fb26c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f61d1b8fd58 CR3: 000000006098e000 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:gup_fast_fallback+0x2118/0x29c0 mm/gup.c:3402
Code: e8 cd 73 b4 ff 4c 8b 74 24 58 48 83 bc 24 f8 00 00 00 00 75 07 e8 b8 73 b4 ff eb 06 e8 b1 73 b4 ff fb 83 bc 24 94 00 00 00 00 <48> 8b 84 24 88 00 00 00 75 0a e8 99 73 b4 ff e9 93 00 00 00 48 8b
RSP: 0018:ffffc9000bc573c0 EFLAGS: 00000206
RAX: ffffffff820d6c1f RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90019002000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000bc576d0 R08: ffffffff820d6bf5 R09: 1ffffffff28a992b
R10: dffffc0000000000 R11: fffffbfff28a992c R12: 0000400000620000
R13: ffffc9000bc575a0 R14: 0000000000000010 R15: dffffc0000000000
 pin_user_pages_fast+0xcc/0x160 mm/gup.c:3530
 iov_iter_extract_user_pages lib/iov_iter.c:1845 [inline]
 iov_iter_extract_pages+0x3bb/0x5c0 lib/iov_iter.c:1908
 extract_user_to_sg lib/scatterlist.c:1126 [inline]
 extract_iter_to_sg+0xea6/0x2650 lib/scatterlist.c:1413
 hash_sendmsg+0x513/0x1140 crypto/algif_hash.c:119
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:733
 ____sys_sendmsg+0x53a/0x860 net/socket.c:2573
 ___sys_sendmsg net/socket.c:2627 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2659
 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: 0033:0x7f61d458d169
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:00007f61d1fb2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f61d47a6240 RCX: 00007f61d458d169
RDX: 0000000000000000 RSI: 0000400000000200 RDI: 0000000000000008
RBP: 00007f61d460e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f61d47a6240 R15: 00007ffdc4eec548
 </TASK>
----------------
Code disassembly (best guess):
   0:	e8 cd 73 b4 ff       	call   0xffb473d2
   5:	4c 8b 74 24 58       	mov    0x58(%rsp),%r14
   a:	48 83 bc 24 f8 00 00 	cmpq   $0x0,0xf8(%rsp)
  11:	00 00
  13:	75 07                	jne    0x1c
  15:	e8 b8 73 b4 ff       	call   0xffb473d2
  1a:	eb 06                	jmp    0x22
  1c:	e8 b1 73 b4 ff       	call   0xffb473d2
  21:	fb                   	sti
  22:	83 bc 24 94 00 00 00 	cmpl   $0x0,0x94(%rsp)
  29:	00
* 2a:	48 8b 84 24 88 00 00 	mov    0x88(%rsp),%rax <-- trapping instruction
  31:	00
  32:	75 0a                	jne    0x3e
  34:	e8 99 73 b4 ff       	call   0xffb473d2
  39:	e9 93 00 00 00       	jmp    0xd1
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b