------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x62d/0x740, CPU#0: syz-executor/5644
Modules linked in:
CPU: 0 UID: 0 PID: 5644 Comm: syz-executor 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 30 83 9e f7 90 0f 0b 90 e9 8b fe ff ff e8 22 83 9e f7 90 0f 0b 90 e9 b1 fe ff ff e8 14 83 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:ffffc90000007d20 EFLAGS: 00010246
RAX: ffffffff8a273ebc RBX: dffffc0000000000 RCX: ffff888101b65880
RDX: 0000000000000100 RSI: 0000000000000f70 RDI: 0000000000000000
RBP: 0000000000000f70 R08: ffff888113b20b27 R09: 1ffff11022764164
R10: dffffc0000000000 R11: ffffed1022764165 R12: ffff888113b20880
R13: ffff888113b20d88 R14: ffff888113b20b0c R15: ffffffff8feaf240
FS:  00005555630f0500(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc099e8158 CR3: 0000000112496000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __sk_destruct+0x8d/0x9d0
 rcu_core+0x7cd/0x1070
 handle_softirqs+0x22a/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x221/0x350
Code: ff ff ff e8 e1 11 07 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 cb 7c 97 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 58 61 92
RSP: 0018:ffffc9000588ef70 EFLAGS: 00000282
RAX: 9586842c30d62d00 RBX: 0000000000000000 RCX: 0000000080000002
RDX: 0000000040ddbe47 RSI: ffffffff8e219b5e RDI: ffffffff8c28af60
RBP: ffffffff82232b88 R08: ffffffff82232b88 R09: ffff888121040ed8
R10: dffffc0000000000 R11: fffff52000b11de8 R12: 0000000000000000
R13: ffff888121040ed8 R14: 0000000000000001 R15: 0000000000000246
 _raw_spin_trylock+0x47/0x80
 get_page_from_freelist+0x6f8/0x2540
 __alloc_frozen_pages_noprof+0x18d/0x380
 alloc_pages_mpol+0x235/0x490
 alloc_pages_noprof+0xac/0x2a0
 get_free_pages_noprof+0xf/0x80
 __kasan_populate_vmalloc+0x38/0x1d0
 alloc_vmap_area+0xd47/0x1480
 __get_vm_area_node+0x1f8/0x300
 __vmalloc_node_range_noprof+0x36a/0x1750
 vzalloc_noprof+0xb2/0xe0
 alloc_counters+0x64/0x5d0
 do_ip6t_get_ctl+0xabd/0x1230
 nf_getsockopt+0x26e/0x290
 ipv6_getsockopt+0x1fd/0x2b0
 do_sock_getsockopt+0x51d/0x7e0
 __x64_sys_getsockopt+0x1a4/0x240
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc0979e5aa
Code: 48 83 ec 10 89 d2 48 63 ff 45 31 c9 6a 2a 45 31 c0 31 c9 e8 d8 99 fb ff 48 83 c4 18 c3 0f 1f 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff f7
RSP: 002b:00007ffd31c5b728 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffd31c5b7b0 RCX: 00007fcc0979e5aa
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffd31c5b74c R09: ffffffffffffff00
R10: 00007ffd31c5b7b0 R11: 0000000000000212 R12: 00007fcc099ea240
R13: 00007ffd31c5b74c R14: 0000000000000000 R15: 00007fcc099eafc0
 </TASK>
