================================================================================
UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 8310 Comm: syz-executor.0 Not tainted 4.19.147-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+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline]
 hash_ipmark_create.cold+0x19/0x27 net/netfilter/ipset/ip_set_hash_gen.h:1290
 ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940
 nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455
 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xc7/0x130 net/socket.c:632
 sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668
 kernel_sendpage net/socket.c:3378 [inline]
 sock_sendpage+0xdf/0x140 net/socket.c:847
 pipe_to_sendpage+0x268/0x330 fs/splice.c:452
 splice_from_pipe_feed fs/splice.c:503 [inline]
 __splice_from_pipe+0x3af/0x820 fs/splice.c:627
 splice_from_pipe fs/splice.c:662 [inline]
 generic_splice_sendpage+0xd4/0x140 fs/splice.c:833
 do_splice_from fs/splice.c:852 [inline]
 do_splice fs/splice.c:1154 [inline]
 __do_sys_splice fs/splice.c:1428 [inline]
 __se_sys_splice+0xf31/0x15f0 fs/splice.c:1408
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e179
Code: 3d b2 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 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f22787dfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045e179
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000118cf98 R08: 0000000100000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fff280f782f R14: 00007f22787e09c0 R15: 000000000118cf4c
================================================================================
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
xt_check_table_hooks: 5 callbacks suppressed
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
audit: type=1326 audit(1601095300.544:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8517 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0xffff0000
raw_sendmsg: syz-executor.0 forgot to set AF_INET. Fix it!
audit: type=1326 audit(1601095301.324:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8517 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0xffff0000
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 2
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=31 sclass=netlink_tcpdiag_socket pid=8698 comm=syz-executor.5
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=31 sclass=netlink_tcpdiag_socket pid=8704 comm=syz-executor.5
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
device gretap0 entered promiscuous mode
mmap: syz-executor.0 (8736) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst.