================================================================================ 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: 0 PID: 8364 Comm: syz-executor.0 Not tainted 4.19.148-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_netportnet_create.cold+0x1a/0x23 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:00007f4c5736bc78 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: 00007fffe29ea91f R14: 00007f4c5736c9c0 R15: 000000000118cf4c ================================================================================ xt_hashlimit: invalid rate Cannot find add_set index 0 as target Enabling of bearer rejected, failed to enable media netlink: 'syz-executor.3': attribute type 1 has an invalid length. Cannot find add_set index 0 as target IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready 8021q: adding VLAN 0 to HW filter on device bond1 Enabling of bearer rejected, failed to enable media netlink: 'syz-executor.3': attribute type 1 has an invalid length. bond2 (uninitialized): Released all slaves xt_l2tp: wrong L2TP version: 0 audit: type=1804 audit(1601183665.940:17): pid=8501 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir715208395/syzkaller.B1DEuX/15/memory.events" dev="sda1" ino=15780 res=1 audit: type=1800 audit(1601183665.940:18): pid=8501 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="memory.events" dev="sda1" ino=15780 res=0 audit: type=1804 audit(1601183666.000:19): pid=8511 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir715208395/syzkaller.B1DEuX/15/memory.events" dev="sda1" ino=15780 res=1 audit: type=1800 audit(1601183666.100:20): pid=8501 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="memory.events" dev="sda1" ino=15780 res=0 audit: type=1804 audit(1601183666.100:21): pid=8501 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir715208395/syzkaller.B1DEuX/15/memory.events" dev="sda1" ino=15780 res=1 netlink: 'syz-executor.0': attribute type 29 has an invalid length. netlink: 'syz-executor.0': attribute type 29 has an invalid length. audit: type=1804 audit(1601183666.800:22): pid=8557 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir715208395/syzkaller.B1DEuX/17/cgroup.controllers" dev="sda1" ino=15773 res=1 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 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. IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ipt_ECN: cannot use operation on non-tcp rule IPVS: ftp: loaded support on port[0] = 21 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready IPVS: sync thread started: state = BACKUP, mcast_ifn = team_slave_0, syncid = 0, id = 0 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready netlink: 'syz-executor.0': attribute type 1 has an invalid length. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=9028 comm=syz-executor.0 bond1: making interface veth5 the new active one bond1: Enslaving veth5 as an active interface with an up link netlink: 'syz-executor.0': attribute type 1 has an invalid length. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=9024 comm=syz-executor.0 bond1: Enslaving veth7 as a backup interface with an up link nla_parse: 4 callbacks suppressed netlink: 29694 bytes leftover after parsing attributes in process `syz-executor.1'. xt_l2tp: invalid flags combination: 8 netlink: 2 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 29694 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor.1'.