================================================================================ 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: 9436 Comm: syz-executor.5 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_netiface_create.cold+0x1a/0x1f 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 batman_adv: batadv0: Adding interface: veth3 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 batman_adv: batadv0: The MTU of interface veth3 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. 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: 0033:0x45dd99 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007feca0e82c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 batman_adv: batadv0: Not using interface veth3 (retrying later): interface not active RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045dd99 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffc38fa2c3f R14: 00007feca0e839c0 R15: 000000000118bf2c ================================================================================ batman_adv: batadv0: Removing interface: veth3 batman_adv: batadv0: Adding interface: veth3 batman_adv: batadv0: The MTU of interface veth3 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 veth3 (retrying later): interface not active IPVS: ftp: loaded support on port[0] = 21 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPVS: ftp: loaded support on port[0] = 21 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1601378320.930:17): pid=9705 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir150607871/syzkaller.OgtQCh/67/memory.events" dev="sda1" ino=15950 res=1 audit: type=1800 audit(1601378320.930:18): pid=9705 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="memory.events" dev="sda1" ino=15950 res=0 audit: type=1804 audit(1601378320.930:19): pid=9705 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir150607871/syzkaller.OgtQCh/67/memory.events" dev="sda1" ino=15950 res=1 audit: type=1804 audit(1601378321.140:20): pid=9732 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir150607871/syzkaller.OgtQCh/67/memory.events" dev="sda1" ino=15950 res=1 audit: type=1800 audit(1601378321.170:21): pid=9705 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="memory.events" dev="sda1" ino=15950 res=0 audit: type=1804 audit(1601378321.170:22): pid=9705 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir150607871/syzkaller.OgtQCh/67/memory.events" dev="sda1" ino=15950 res=1 nla_parse: 4 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 'syz-executor.5': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. IPVS: ftp: loaded support on port[0] = 21 netlink: 60 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1804 audit(1601378323.250:23): pid=9858 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-testdir483217722/syzkaller.DUwTZI/74/memory.events" dev="sda1" ino=15943 res=1 audit: type=1800 audit(1601378323.280:24): pid=9858 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=15943 res=0 audit: type=1804 audit(1601378323.370:25): pid=9864 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-testdir483217722/syzkaller.DUwTZI/74/memory.events" dev="sda1" ino=15943 res=1 audit: type=1804 audit(1601378323.390:26): pid=9858 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-testdir483217722/syzkaller.DUwTZI/74/memory.events" dev="sda1" ino=15943 res=1 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 netlink: 6 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 13 bytes leftover after parsing attributes in process `syz-executor.5'. device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bridge1: port 1(bridge_slave_0) entered blocking state bridge1: port 1(bridge_slave_0) entered disabled state device bridge_slave_0 entered promiscuous mode netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1540 sclass=netlink_route_socket pid=9940 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1540 sclass=netlink_route_socket pid=9940 comm=syz-executor.1 netlink: 56 bytes leftover after parsing attributes in process `syz-executor.3'. Invalid UDP bearer configuration Enabling of bearer rejected, failed to enable media device batadv0 entered promiscuous mode