================================================================================ 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: 19656 Comm: syz-executor.2 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_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:00007f0865d12c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045e179 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118cf98 R08: 00000000fffffffe R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffc5eeafe1f R14: 00007f0865d139c0 R15: 000000000118cf4c ================================================================================ audit: type=1804 audit(1601055038.247:61): pid=19657 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/379/file0" dev="sda1" ino=17611 res=1 audit: type=1804 audit(1601055038.367:62): pid=19679 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/380/file0" dev="sda1" ino=17611 res=1 audit: type=1804 audit(1601055038.567:63): pid=19686 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/381/file0" dev="sda1" ino=17611 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. batman_adv: batadv0: Adding interface: veth169 batman_adv: batadv0: The MTU of interface veth169 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. batman_adv: batadv0: Not using interface veth169 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth169 kauditd_printk_skb: 1 callbacks suppressed audit: type=1804 audit(1601055039.058:65): pid=19728 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/383/file0" dev="sda1" ino=17234 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1804 audit(1601055039.298:66): pid=19742 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/384/file0" dev="sda1" ino=17582 res=1 batman_adv: batadv0: Adding interface: veth169 batman_adv: batadv0: The MTU of interface veth169 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. batman_adv: batadv0: Not using interface veth169 (retrying later): interface not active audit: type=1804 audit(1601055039.618:67): pid=19761 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/385/file0" dev="sda1" ino=17583 res=1 audit: type=1800 audit(1601055039.808:68): pid=19768 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=17233 res=0 audit: type=1800 audit(1601055039.888:69): pid=19759 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.1" name="file1" dev="sda1" ino=17250 res=0 audit: type=1804 audit(1601055040.118:70): pid=19789 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/386/file0" dev="sda1" ino=17632 res=1 audit: type=1804 audit(1601055040.378:71): pid=19804 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/387/file0" dev="sda1" ino=17583 res=1 tcpmss_tg6_check: 8 callbacks suppressed xt_TCPMSS: Only works on TCP SYN packets audit: type=1804 audit(1601055041.108:72): pid=19827 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/388/file0" dev="sda1" ino=17647 res=1 xt_TCPMSS: Only works on TCP SYN packets audit: type=1804 audit(1601055041.428:73): pid=19851 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/389/file0" dev="sda1" ino=17555 res=1 xt_TCPMSS: Only works on TCP SYN packets audit: type=1804 audit(1601055041.688:74): pid=19866 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/390/file0" dev="sda1" ino=17642 res=1 device batadv_slave_1 entered promiscuous mode kauditd_printk_skb: 7 callbacks suppressed audit: type=1804 audit(1601055044.188:82): pid=20001 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/398/file0" dev="sda1" ino=17641 res=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. audit: type=1804 audit(1601055044.488:83): pid=20018 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/399/file0" dev="sda1" ino=17667 res=1 audit: type=1804 audit(1601055044.828:84): pid=20034 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/400/file0" dev="sda1" ino=17662 res=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1804 audit(1601055045.148:85): pid=20050 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/401/file0" dev="sda1" ino=17679 res=1 audit: type=1804 audit(1601055045.498:86): pid=20063 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/402/file0" dev="sda1" ino=17679 res=1 audit: type=1804 audit(1601055045.758:87): pid=20066 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/403/file0" dev="sda1" ino=17678 res=1 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. device wlan1 left promiscuous mode audit: type=1804 audit(1601055046.018:88): pid=20081 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/404/file0" dev="sda1" ino=17682 res=1 audit: type=1804 audit(1601055046.298:89): pid=20092 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/405/file0" dev="sda1" ino=17682 res=1 audit: type=1804 audit(1601055046.748:90): pid=20104 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/406/file0" dev="sda1" ino=17682 res=1 psmouse serio2: Failed to reset mouse on : -5 audit: type=1804 audit(1601055047.008:91): pid=20122 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir349094241/syzkaller.RYiazF/407/file0" dev="sda1" ino=17685 res=1