================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 75 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work 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 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_calc_qavg include/net/red.h:313 [inline] choke_enqueue+0x2a7e/0x2cc0 net/sched/sch_choke.c:231 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x14e1/0x2ec0 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip_finish_output2+0xc04/0x1640 net/ipv4/ip_output.c:230 ip_finish_output+0x88e/0xd80 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x203/0x650 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:455 [inline] ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x63e/0xa30 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:865 [inline] geneve_xmit+0xf46/0x2ac0 drivers/net/geneve.c:938 __netdev_start_xmit include/linux/netdevice.h:4333 [inline] netdev_start_xmit include/linux/netdevice.h:4347 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x960 net/core/dev.c:3272 __dev_queue_xmit+0x276a/0x2ec0 net/core/dev.c:3838 neigh_resolve_output+0x55a/0x950 net/core/neighbour.c:1374 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0x1184/0x2370 net/ipv6/ip6_output.c:120 ip6_finish_output+0x610/0xcc0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:455 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xa6b/0x1860 net/ipv6/ndisc.c:491 ndisc_send_rs+0x131/0x6a0 net/ipv6/ndisc.c:685 addrconf_dad_completed+0x31e/0xb60 net/ipv6/addrconf.c:4151 addrconf_dad_work+0x787/0x1130 net/ipv6/addrconf.c:4062 process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ================================================================================ ntfs: (device loop0): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ntfs: (device loop0): ntfs_fill_super(): Unable to determine device size. mkiss: ax0: crc mode is auto. ntfs: (device loop0): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ntfs: (device loop0): ntfs_fill_super(): Unable to determine device size. mkiss: ax0: crc mode is auto. ntfs: (device loop0): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ntfs: (device loop0): ntfs_fill_super(): Unable to determine device size. ntfs: (device loop0): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ntfs: (device loop0): ntfs_fill_super(): Unable to determine device size. ntfs: (device loop0): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ntfs: (device loop0): ntfs_fill_super(): Unable to determine device size. bond_slave_0: Device is already in use. kauditd_printk_skb: 1 callbacks suppressed audit: type=1804 audit(1602624604.193:10): pid=8433 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir139429936/syzkaller.LSoSwP/10/bus" dev="sda1" ino=15805 res=1 mmap: syz-executor.5 (8434) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. audit: type=1400 audit(1602624605.273:11): avc: denied { name_bind } for pid=8464 comm="syz-executor.4" src=20003 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1602624605.273:12): avc: denied { node_bind } for pid=8464 comm="syz-executor.4" src=20003 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1602624605.273:13): avc: denied { name_connect } for pid=8464 comm="syz-executor.4" dest=20003 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.