================================
WARNING: inconsistent lock state
syzkaller #0 Not tainted
--------------------------------
inconsistent {INITIAL USE} -> {IN-NMI} usage.
syz.0.17/5927 [HC1[1]:SC0[0]:HE0:SE1] takes:
ffff88802d223218 (&htab->lockdep_key){....}-{2:2}, at: htab_lock_bucket+0x17d/0x300 kernel/bpf/hashtab.c:166
{INITIAL USE} state was registered at:
  lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5754
  __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
  _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
  htab_lock_bucket+0x17d/0x300 kernel/bpf/hashtab.c:166
  htab_map_update_elem+0x237/0x1270 kernel/bpf/hashtab.c:1150
  bpf_map_update_value+0x64b/0x710 kernel/bpf/syscall.c:203
  map_update_elem+0x586/0x710 kernel/bpf/syscall.c:1567
  __sys_bpf+0x6b5/0x890 kernel/bpf/syscall.c:5466
  __do_sys_bpf kernel/bpf/syscall.c:5582 [inline]
  __se_sys_bpf kernel/bpf/syscall.c:5580 [inline]
  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5580
  do_syscall_x64 arch/x86/entry/common.c:46 [inline]
  do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
  entry_SYSCALL_64_after_hwframe+0x68/0xd2
irq event stamp: 2178
hardirqs last  enabled at (2177): [<ffffffff8a8ed925>] exc_debug_kernel arch/x86/kernel/traps.c:1117 [inline]
hardirqs last  enabled at (2177): [<ffffffff8a8ed925>] exc_debug+0xf5/0x140 arch/x86/kernel/traps.c:1199
hardirqs last disabled at (2178): [<ffffffff8a8ed8a3>] exc_debug_kernel arch/x86/kernel/traps.c:1063 [inline]
hardirqs last disabled at (2178): [<ffffffff8a8ed8a3>] exc_debug+0x73/0x140 arch/x86/kernel/traps.c:1199
softirqs last  enabled at (2032): [<ffffffff8196b9c4>] bpf_prog_load+0x1204/0x1610 kernel/bpf/syscall.c:2779
softirqs last disabled at (2030): [<ffffffff8194b79c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (2030): [<ffffffff8194b79c>] bpf_ksym_add+0x2c/0x330 kernel/bpf/core.c:656

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&htab->lockdep_key);
  <Interrupt>
    lock(&htab->lockdep_key);

 *** DEADLOCK ***

no locks held by syz.0.17/5927.

stack backtrace:
CPU: 0 PID: 5927 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <#DB>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 lock_acquire+0x2c2/0x420 kernel/locking/lockdep.c:5745
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 htab_lock_bucket+0x17d/0x300 kernel/bpf/hashtab.c:166
 htab_map_delete_elem+0x19f/0x640 kernel/bpf/hashtab.c:1443
 bpf_prog_2c29ac5cdc6b1842+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:1224 [inline]
 __bpf_prog_run include/linux/filter.h:617 [inline]
 bpf_prog_run include/linux/filter.h:624 [inline]
 bpf_overflow_handler+0x1fc/0x510 kernel/events/core.c:10576
 __perf_event_overflow+0x461/0x660 kernel/events/core.c:9712
 perf_swevent_overflow+0x274/0x340 kernel/events/core.c:9795
 perf_swevent_event+0x45c/0x570 kernel/events/core.c:-1
 perf_bp_event+0x319/0x430 kernel/events/core.c:10773
 hw_breakpoint_handler arch/x86/kernel/hw_breakpoint.c:555 [inline]
 hw_breakpoint_exceptions_notify+0x23e/0x670 arch/x86/kernel/hw_breakpoint.c:586
 notifier_call_chain+0x18f/0x380 kernel/notifier.c:93
 atomic_notifier_call_chain+0xda/0x180 kernel/notifier.c:231
 notify_die+0x145/0x1a0 kernel/notifier.c:596
 notify_debug+0x2e/0x50 arch/x86/kernel/traps.c:1042
 exc_debug_kernel arch/x86/kernel/traps.c:1099 [inline]
 exc_debug+0xde/0x140 arch/x86/kernel/traps.c:1199
 asm_exc_debug+0x1e/0x40 arch/x86/include/asm/idtentry.h:644
RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:71
Code: 75 f1 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 <f3> a4 c3 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 29 f8 48 01
RSP: 0018:ffffc900048ff670 EFLAGS: 00050206
RAX: ffffffff84318001 RBX: 00000000000000fe RCX: 00000000000000fa
RDX: 0000000000000001 RSI: 0000200000000304 RDI: ffff88802d224804
RBP: ffffc900048ff7d0 R08: ffff88802d2248fd R09: 1ffff11005a4491f
R10: dffffc0000000000 R11: ffffed1005a44920 R12: 00002000000003fe
R13: ffffc900048ffe40 R14: ffff88802d224800 R15: 0000200000000300
 </#DB>
 <TASK>
 copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:127 [inline]
 copyin+0x70/0x90 lib/iov_iter.c:193
 _copy_from_iter+0x532/0x1290 lib/iov_iter.c:391
 copy_from_iter include/linux/uio.h:209 [inline]
 skb_copy_datagram_from_iter+0xf2/0x6f0 net/core/datagram.c:561
 unix_dgram_sendmsg+0x659/0x16e0 net/unix/af_unix.c:2016
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x61b/0x980 net/socket.c:2595
 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2649
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2687 [inline]
 __se_sys_sendmsg+0x1d0/0x2c0 net/socket.c:2685
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb70e59e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc8f7b6e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb70e825fa0 RCX: 00007fb70e59e0d9
RDX: 0000000004000080 RSI: 0000200000000540 RDI: 0000000000000008
RBP: 00007fb70e635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb70e825fac R14: 00007fb70e825fa0 R15: 00007fb70e825fa0
 </TASK>
----------------
Code disassembly (best guess):
   0:	75 f1                	jne    0xfffffff3
   2:	c3                   	ret
   3:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   a:	00 00 00
   d:	0f 1f 00             	nopl   (%rax)
  10:	48 8b 06             	mov    (%rsi),%rax
  13:	48 89 07             	mov    %rax,(%rdi)
  16:	48 83 c6 08          	add    $0x8,%rsi
  1a:	48 83 c7 08          	add    $0x8,%rdi
  1e:	83 e9 08             	sub    $0x8,%ecx
  21:	74 df                	je     0x2
  23:	83 f9 08             	cmp    $0x8,%ecx
  26:	73 e8                	jae    0x10
  28:	eb c9                	jmp    0xfffffff3
* 2a:	f3 a4                	rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction
  2c:	c3                   	ret
  2d:	48 8b 06             	mov    (%rsi),%rax
  30:	48 89 07             	mov    %rax,(%rdi)
  33:	48 8d 47 08          	lea    0x8(%rdi),%rax
  37:	48 83 e0 f8          	and    $0xfffffffffffffff8,%rax
  3b:	48 29 f8             	sub    %rdi,%rax
  3e:	48                   	rex.W
  3f:	01                   	.byte 0x1