BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 31940 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:2840 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:2914 [inline]
 validate_chain kernel/locking/lockdep.c:2935 [inline]
 __lock_acquire.cold+0x263/0x288 kernel/locking/lockdep.c:3954
 lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4484
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159
 stack_depot_save+0x136/0x440 lib/stackdepot.c:272
 save_stack+0x4c/0x80 mm/kasan/common.c:74
 set_track mm/kasan/common.c:80 [inline]
 __kasan_kmalloc mm/kasan/common.c:515 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:488
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc mm/slab.c:3320 [inline]
 kmem_cache_alloc_trace+0x13d/0x7d0 mm/slab.c:3549
 kmalloc include/linux/slab.h:555 [inline]
 ip_setup_cork+0x6d3/0x930 net/ipv4/ip_output.c:1249
 ip_append_data.part.0+0x142/0x180 net/ipv4/ip_output.c:1308
 ip_append_data+0x6f/0x90 net/ipv4/ip_output.c:1304
 icmp_push_reply+0x13d/0x490 net/ipv4/icmp.c:371
 __icmp_send+0xc4d/0x14b0 net/ipv4/icmp.c:740
 ipv4_send_dest_unreach net/ipv4/route.c:1223 [inline]
 ipv4_link_failure+0x4f3/0x8b0 net/ipv4/route.c:1230
 dst_link_failure include/net/dst.h:419 [inline]
 vti6_xmit net/ipv6/ip6_vti.c:519 [inline]
 vti6_tnl_xmit+0xf54/0x1b20 net/ipv6/ip6_vti.c:558
 __netdev_start_xmit include/linux/netdevice.h:4524 [inline]
 netdev_start_xmit include/linux/netdevice.h:4538 [inline]
 xmit_one net/core/dev.c:3477 [inline]
 dev_hard_start_xmit+0x1a4/0x9b0 net/core/dev.c:3493
 __dev_queue_xmit+0x25e1/0x3090 net/core/dev.c:4052
 neigh_output include/net/neighbour.h:510 [inline]
 ip_finish_output2+0x909/0x2610 net/ipv4/ip_output.c:228
 __ip_finish_output net/ipv4/ip_output.c:306 [inline]
 __ip_finish_output+0x5f3/0xbd0 net/ipv4/ip_output.c:288
 ip_finish_output+0x34/0x1f0 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0x1fe/0x620 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:436 [inline]
 ip_local_out+0xaf/0x1a0 net/ipv4/ip_output.c:125
 __ip_queue_xmit+0x863/0x1c20 net/ipv4/ip_output.c:530
 __tcp_transmit_skb+0x19cd/0x3740 net/ipv4/tcp_output.c:1234
 tcp_transmit_skb net/ipv4/tcp_output.c:1250 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:3617 [inline]
 tcp_connect+0x1dbe/0x4290 net/ipv4/tcp_output.c:3656
 tcp_v4_connect+0x14f0/0x1c10 net/ipv4/tcp_ipv4.c:311
 __inet_stream_connect+0x80f/0xe30 net/ipv4/af_inet.c:655
 tcp_sendmsg_fastopen net/ipv4/tcp.c:1164 [inline]
 tcp_sendmsg_locked+0x243a/0x3210 net/ipv4/tcp.c:1206
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1433
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:807
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6b9/0x7d0 net/socket.c:2343
 ___sys_sendmsg+0x100/0x170 net/socket.c:2397
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2430
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c849
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa4cecbfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa4cecc06d4 RCX: 000000000045c849
RDX: 00000000200408c4 RSI: 0000000020000180 RDI: 0000000000000006
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000009f2 R14: 00000000004cca9c R15: 000000000076bf0c