================================================================================ 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: 18941 Comm: syz-executor.3 Not tainted 4.19.150-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_netport_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 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: 0033:0x45de59 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:00007fa44b88ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000000350c0 RCX: 000000000045de59 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fffdb2da33f R14: 00007fa44b88b9c0 R15: 000000000118bf2c ================================================================================ device geneve2 entered promiscuous mode audit: type=1800 audit(1602326950.638:94): pid=18990 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=17036 res=0 (unnamed net_device) (uninitialized): Removing last arp target with arp_interval on [drm:drm_calc_timestamping_constants] *ERROR* crtc 29: Can't calculate constants, dotclock = 0! audit: type=1800 audit(1602326951.358:95): pid=18985 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=17036 res=0 audit: type=1800 audit(1602326951.628:96): pid=19057 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=17054 res=0 device geneve2 entered promiscuous mode syz-executor.4 (19074) used greatest stack depth: 21888 bytes left netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. A link change request failed with some changes committed already. Interface veth15 may have been left with an inconsistent configuration, please check. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1800 audit(1602326952.928:97): pid=19121 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=16673 res=0 device geneve2 entered promiscuous mode audit: type=1800 audit(1602326953.424:98): pid=19145 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=17044 res=0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. device geneve2 entered promiscuous mode netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. mac80211_hwsim hwsim4 wlan1: (WE) : Wireless Event (cmd=0x8B1A) too big (33) device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. device wlan1 left promiscuous mode mac80211_hwsim hwsim4 wlan1: (WE) : Wireless Event (cmd=0x8B1A) too big (33) mac80211_hwsim hwsim4 wlan1: (WE) : Wireless Event (cmd=0x8B1A) too big (33) mac80211_hwsim hwsim4 wlan1: (WE) : Wireless Event (cmd=0x8B1A) too big (33) IPVS: ftp: loaded support on port[0] = 21 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) Started in network mode Own node identity 7f, cluster identity 4711 32-bit node address hash set to 7f IPVS: ftp: loaded support on port[0] = 21 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) Left network mode IPVS: ftp: loaded support on port[0] = 21 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) Started in network mode Own node identity 7f, cluster identity 4711 32-bit node address hash set to 7f