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WARNING: net/ipv4/af_inet.c:157 at inet_sock_destruct+0x68c/0x830 net/ipv4/af_inet.c:157, CPU#2: syz-executor/5927
Modules linked in:
CPU: 2 UID: 0 PID: 5927 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:inet_sock_destruct+0x68c/0x830 net/ipv4/af_inet.c:157
Code: 0f 0b 90 e9 0a fe ff ff e8 11 4e cf f7 90 0f 0b 90 e9 56 fe ff ff e8 03 4e cf f7 90 0f 0b 90 e9 8c fe ff ff e8 f5 4d cf f7 90 <0f> 0b 90 e9 cb fe ff ff e8 77 25 39 f8 e9 cf fc ff ff 4c 89 ff e8
RSP: 0018:ffffc90000648d90 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888035962940 RCX: ffffffff89ef9a07
RDX: ffff8880334ac980 RSI: ffffffff89ef9b3b RDI: 0000000000000005
RBP: 0000000000000f70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000f70 R11: ffff8880334ad4b0 R12: ffff888035962940
R13: ffff8880359629d0 R14: ffffc90000648e90 R15: 0000000000000002
FS:  000055556aff9500(0000) GS:ffff8880d6af5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe4c498f80 CR3: 000000002ad9b000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 000000000000afe8 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sk_destruct+0x85/0xbc0 net/core/sock.c:2350
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0x79c/0x15f0 kernel/rcu/tree.c:2857
 handle_softirqs+0x219/0x950 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 56 de 1e f6 48 89 df e8 0e 31 1f f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 d5 33 0f f6 65 8b 05 2e 99 37 08 85 c0 74 16 5b
RSP: 0018:ffffc90003947ba0 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff888036849090 RCX: ffffffff81c70c7f
RDX: 0000000000000000 RSI: ffffffff8daceab2 RDI: ffffffff8bf2b400
RBP: 0000000000000286 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9088bdd7 R11: 0000000000000001 R12: 00000000000001d5
R13: ffff8880341988c8 R14: dffffc0000000000 R15: ffff888036849000
 anon_pipe_write+0xce9/0x1bd0 fs/pipe.c:596
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 fs/read_write.c:686
 ksys_write+0x1f8/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1293d8e27f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007ffe4c499cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000053a RCX: 00007f1293d8e27f
RDX: 0000000000000004 RSI: 00007ffe4c499d80 RDI: 00000000000000f8
RBP: 00007ffe4c499d2c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000001d4
R13: 00000000000927c0 R14: 0000000000022b29 R15: 00007ffe4c499d80
 </TASK>
----------------
Code disassembly (best guess):
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 56 de 1e f6       	call   0xf61ede69
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 0e 31 1f f6       	call   0xf61f3129
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 23                	jne    0x46
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 37                	jne    0x61
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 d5 33 0f f6       	call   0xf60f3409
  34:	65 8b 05 2e 99 37 08 	mov    %gs:0x837992e(%rip),%eax        # 0x8379969
  3b:	85 c0                	test   %eax,%eax
  3d:	74 16                	je     0x55
  3f:	5b                   	pop    %rbx