------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x62d/0x740, CPU#0: swapper/0/0
Modules linked in:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:inet_sock_destruct+0x62d/0x740
Code: 0f 0b 90 e9 58 fe ff ff e8 e0 86 9e f7 90 0f 0b 90 e9 8b fe ff ff e8 d2 86 9e f7 90 0f 0b 90 e9 b1 fe ff ff e8 c4 86 9e f7 90 <0f> 0b 90 e9 d7 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 95 fc
RSP: 0018:ffffc90000007d48 EFLAGS: 00010246
RAX: ffffffff8a2727ac RBX: dffffc0000000000 RCX: ffffffff8e494ec0
RDX: 0000000000000100 RSI: 0000000000000f70 RDI: 0000000000000000
RBP: 0000000000000f70 R08: ffff88810e1a7127 R09: 1ffff11021c34e24
R10: dffffc0000000000 R11: ffffed1021c34e25 R12: ffff88810e1a6e80
R13: dffffc0000000000 R14: ffff88810e1a710c R15: ffffffff8fca7040
FS:  0000000000000000(0000) GS:ffff88818de54000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a2084edd5 CR3: 00000001128be000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __sk_destruct+0x85/0x880
 rcu_core+0x7cd/0x1070
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0xf/0x20
Code: de 6c 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 f2 17 00 fb f4 <e9> fc e9 02 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffffff8e407dc0 EFLAGS: 00000206
RAX: 0000000000423e2b RBX: ffffffff819a913a RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8df27784 RDI: ffffffff8c27ca80
RBP: ffffffff8e407eb0 R08: ffff88812103399b R09: 1ffff11024206733
R10: dffffc0000000000 R11: ffffed1024206734 R12: 0000000000000000
R13: 1ffffffff1c929d8 R14: 0000000000000000 R15: 1ffffffff1c929d8
 default_idle+0x9/0x20
 default_idle_call+0x72/0xb0
 do_idle+0x36a/0x5f0
 cpu_startup_entry+0x43/0x60
 rest_init+0x2de/0x300
 start_kernel+0x385/0x3d0
 x86_64_start_reservations+0x24/0x30
 x86_64_start_kernel+0x143/0x1c0
 common_startup_64+0x13e/0x147
 </TASK>
