================================================================================ 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: 7838 Comm: syz-executor.5 Not tainted 4.19.149-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_ipmac_create.cold+0x1a/0x2b 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 ___sys_sendmsg+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 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:00007f2f19ecdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000029b40 RCX: 000000000045dd99 RDX: 0000000000000000 RSI: 0000000020001080 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff581c341f R14: 00007f2f19ece9c0 R15: 000000000118bf2c ================================================================================ xt_hashlimit: overflow, rate too high: 0 xt_hashlimit: overflow, rate too high: 0 xt_hashlimit: overflow, rate too high: 0 xt_hashlimit: overflow, rate too high: 0 input: syz0 as /devices/virtual/input/input43 binder: binder_mmap: 7908 2000f000-20013000 bad vm_flags failed -1 input: syz0 as /devices/virtual/input/input44 binder: binder_mmap: 7934 2000f000-20013000 bad vm_flags failed -1 input: syz0 as /devices/virtual/input/input45 input: syz0 as /devices/virtual/input/input46 binder: binder_mmap: 7968 2000f000-20013000 bad vm_flags failed -1 input: syz0 as /devices/virtual/input/input47 binder: binder_mmap: 7990 2000f000-20013000 bad vm_flags failed -1 device wlan1 left promiscuous mode audit: type=1800 audit(1601561826.331:16483): pid=8028 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=16369 res=0 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode audit: type=1800 audit(1601561826.841:16484): pid=8031 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="wlan1" dev="sda1" ino=16353 res=0 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode audit: type=1800 audit(1601561827.541:16485): pid=8081 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=16047 res=0 audit: type=1800 audit(1601561827.571:16486): pid=8082 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16058 res=0 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode device wlan1 left promiscuous mode audit: type=1800 audit(1601561828.541:16487): pid=8118 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16337 res=0 EXT4-fs warning (device sda1): ext4_group_add:1680: No reserved GDT blocks, can't resize audit: type=1800 audit(1601561828.541:16488): pid=8112 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=16060 res=0 netlink: 1009 bytes leftover after parsing attributes in process `syz-executor.5'. device wlan1 left promiscuous mode netlink: 1009 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 1009 bytes leftover after parsing attributes in process `syz-executor.5'. device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready netlink: 1009 bytes leftover after parsing attributes in process `syz-executor.5'. device wlan1 left promiscuous mode audit: type=1800 audit(1601561829.691:16489): pid=8165 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=16025 res=0 audit: type=1800 audit(1601561829.751:16490): pid=8171 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16060 res=0 EXT4-fs warning (device sda1): ext4_group_add:1680: No reserved GDT blocks, can't resize device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready attempt to access beyond end of device loop5: rw=1, want=230, limit=54 attempt to access beyond end of device xt_cluster: you have exceeded the maximum number of cluster nodes (166 > 32) loop5: rw=1, want=62, limit=54 attempt to access beyond end of device loop5: rw=1, want=230, limit=54 attempt to access beyond end of device loop5: rw=1, want=62, limit=54 wlan1: Trigger new scan to find an IBSS to join attempt to access beyond end of device loop5: rw=1, want=230, limit=54 attempt to access beyond end of device loop5: rw=1, want=62, limit=54 attempt to access beyond end of device loop5: rw=1, want=230, limit=54 attempt to access beyond end of device loop5: rw=1, want=62, limit=54