syzbot

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DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 61 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 0 PID: 61 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4773 [inline]
WARNING: CPU: 0 PID: 61 at kernel/locking/lockdep.c:232 __lock_acquire+0x573/0x1fd0 kernel/locking/lockdep.c:5087
Modules linked in:
CPU: 0 PID: 61 Comm: kworker/u8:4 Not tainted 6.10.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: netns cleanup_net
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4773 [inline]
RIP: 0010:__lock_acquire+0x573/0x1fd0 kernel/locking/lockdep.c:5087
Code: 00 00 83 3d 6e 0e 3b 0e 00 75 23 90 48 c7 c7 00 ba ca 8b 48 c7 c6 a0 bc ca 8b e8 78 e4 e5 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:ffffc900015c7290 EFLAGS: 00010046
RAX: 62ab13c647fc3d00 RBX: 0000000000000e50 RCX: ffff888015fd1e00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000000f R08: ffffffff81585822 R09: 1ffff1101728519a
R10: dffffc0000000000 R11: ffffed101728519b R12: 0000000000000001
R13: ffff888015fd1e00 R14: 000000000000000f R15: ffff888015fd2978
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020074000 CR3: 0000000029a38000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:567
 raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
 rq_lock kernel/sched/sched.h:1702 [inline]
 __schedule+0x357/0x4a20 kernel/sched/core.c:6653
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:104 [inline]
RIP: 0010:lock_is_held_type+0x6e/0x190 kernel/locking/lockdep.c:5821
Code: 2c 25 c0 d4 03 00 41 83 bd dc 0a 00 00 00 0f 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 4c 8b 24 24 <fa> 48 c7 c7 40 c8 ca 8b e8 55 1b 00 00 65 ff 05 7e b0 7c 74 41 83
RSP: 0018:ffffc900015c78b8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffff888015fd1e00
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8e333f20
RBP: ffffc900015c7a08 R08: ffffffff8fad4d2f R09: 1ffffffff1f5a9a5
R10: dffffc0000000000 R11: fffffbfff1f5a9a6 R12: 0000000000000246
R13: ffff888015fd1e00 R14: 00000000ffffffff R15: ffffffff8e333f20
 lock_is_held include/linux/lockdep.h:231 [inline]
 __might_resched+0xf4/0x780 kernel/sched/core.c:10158
 cond_resched_rcu+0xae/0x170 include/linux/rcupdate_wait.h:63
 ip_vs_conn_flush net/netfilter/ipvs/ip_vs_conn.c:1393 [inline]
 ip_vs_conn_net_cleanup+0x3a3/0x560 net/netfilter/ipvs/ip_vs_conn.c:1475
 __ip_vs_cleanup_batch+0x74/0x100 net/netfilter/ipvs/ip_vs_core.c:2351
 ops_exit_list net/core/net_namespace.c:178 [inline]
 cleanup_net+0x89f/0xcc0 net/core/net_namespace.c:640
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	2c 25                	sub    $0x25,%al
   2:	c0 d4 03             	rcl    $0x3,%ah
   5:	00 41 83             	add    %al,-0x7d(%rcx)
   8:	bd dc 0a 00 00       	mov    $0xadc,%ebp
   d:	00 0f                	add    %cl,(%rdi)
   f:	85 da                	test   %ebx,%edx
  11:	00 00                	add    %al,(%rax)
  13:	00 41 89             	add    %al,-0x77(%rcx)
  16:	f6 49 89 ff          	testb  $0xff,-0x77(%rcx)
  1a:	48 c7 04 24 00 00 00 	movq   $0x0,(%rsp)
  21:	00
  22:	9c                   	pushf
  23:	8f 04 24             	pop    (%rsp)
  26:	4c 8b 24 24          	mov    (%rsp),%r12
* 2a:	fa                   	cli <-- trapping instruction
  2b:	48 c7 c7 40 c8 ca 8b 	mov    $0xffffffff8bcac840,%rdi
  32:	e8 55 1b 00 00       	call   0x1b8c
  37:	65 ff 05 7e b0 7c 74 	incl   %gs:0x747cb07e(%rip)        # 0x747cb0bc
  3e:	41                   	rex.B
  3f:	83                   	.byte 0x83