kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 24173 Comm: syz-executor.2 Not tainted 4.19.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nft_chain_parse_hook+0x37c/0x8c0 net/netfilter/nf_tables_api.c:1521
Code: 00 e8 08 13 6d fb 41 83 fd 05 0f 87 30 04 00 00 e8 79 11 6d fb 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 77 04 00 00 44 89 e9 be 01 00
RSP: 0018:ffff8880526ff200 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000a2c8000
RDX: 0000000000000003 RSI: ffffffff85fdf317 RDI: 0000000000000018
RBP: ffff8880526ff2f0 R08: ffff888051f80380 R09: 0000000000000000
R10: ffffed100a4dfe4c R11: ffff8880526ff267 R12: ffff8880526ff370
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880526ff2c8
FS:  00007f2e62879700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33822000 CR3: 000000009711e000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 nf_tables_addchain.constprop.0+0x1a6/0xf90 net/netfilter/nf_tables_api.c:1602
 nf_tables_newchain+0xf54/0x14d0 net/netfilter/nf_tables_api.c:1877
 nfnetlink_rcv_batch+0xef6/0x1750 net/netfilter/nfnetlink.c:430
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:540 [inline]
 nfnetlink_rcv+0x3ed/0x460 net/netfilter/nfnetlink.c:558
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:632
 ___sys_sendmsg+0x803/0x920 net/socket.c:2115
bond2: Enslaving gretap2 as an active interface with an up link
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153
 __do_sys_sendmsg net/socket.c:2162 [inline]
 __se_sys_sendmsg net/socket.c:2160 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b349
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:00007f2e62878c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2e628796d4 RCX: 000000000045b349
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000940 R14: 00000000004ca9e5 R15: 000000000075bf2c
Modules linked in:
bond2 (unregistering): Releasing backup interface gretap2
---[ end trace b66927d7fbbf6eae ]---
RIP: 0010:nft_chain_parse_hook+0x37c/0x8c0 net/netfilter/nf_tables_api.c:1521
Code: 00 e8 08 13 6d fb 41 83 fd 05 0f 87 30 04 00 00 e8 79 11 6d fb 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 77 04 00 00 44 89 e9 be 01 00
RSP: 0018:ffff8880526ff200 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000a2c8000
RDX: 0000000000000003 RSI: ffffffff85fdf317 RDI: 0000000000000018
RBP: ffff8880526ff2f0 R08: ffff888051f80380 R09: 0000000000000000
R10: ffffed100a4dfe4c R11: ffff8880526ff267 R12: ffff8880526ff370
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880526ff2c8
FS:  00007f2e62879700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f534f126db8 CR3: 000000009711e000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400