================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 193 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 17700 Comm: syz-executor.3 Not tainted 4.19.152-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 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_calc_qavg include/net/red.h:313 [inline] red_enqueue+0x2064/0x2200 net/sched/sch_red.c:68 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x14e1/0x2ec0 net/core/dev.c:3807 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] ip6_xmit+0xe46/0x2110 net/ipv6/ip6_output.c:275 sctp_v6_xmit+0x38e/0x720 net/sctp/ipv6.c:229 sctp_packet_transmit+0x1c3c/0x3210 net/sctp/output.c:641 sctp_packet_singleton net/sctp/outqueue.c:792 [inline] sctp_outq_flush_ctrl.constprop.0+0x6d3/0xc50 net/sctp/outqueue.c:923 sctp_outq_flush net/sctp/outqueue.c:1205 [inline] sctp_outq_uncork+0x10b/0x200 net/sctp/outqueue.c:777 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1815 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x520/0x4fd0 net/sctp/sm_sideeffect.c:1170 sctp_primitive_ASSOCIATE+0x98/0xc0 net/sctp/primitive.c:88 __sctp_connect+0x908/0xd40 net/sctp/socket.c:1244 sctp_connect net/sctp/socket.c:4523 [inline] sctp_inet_connect+0x14b/0x1b0 net/sctp/socket.c:4538 __sys_connect+0x265/0x2c0 net/socket.c:1663 __do_sys_connect net/socket.c:1674 [inline] __se_sys_connect net/socket.c:1671 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1671 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:00007fdd7303cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000002380 RCX: 000000000045de59 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff21d1b7af R14: 00007fdd7303d9c0 R15: 000000000118bf2c ================================================================================ kauditd_printk_skb: 3 callbacks suppressed audit: type=1800 audit(1603095935.658:45): pid=17700 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16162 res=0 vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=17767 comm=syz-executor.1 usb 20-1: SetAddress Request (2) to port 0 usb 20-1: new SuperSpeed Gen 1 USB device number 2 using vhci_hcd vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=17767 comm=syz-executor.1 vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: 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: set_ctl: invalid protocol: 58 127.0.0.1:20004 device bond0 entered promiscuous mode device bond_slave_0 entered promiscuous mode device bond_slave_1 entered promiscuous mode netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. device vxlan0 entered promiscuous mode IPVS: set_ctl: invalid protocol: 58 127.0.0.1:20004 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. device vxlan0 entered promiscuous mode FAT-fs (loop1): Unrecognized mount option "iochars" or missing value FAT-fs (loop1): Unrecognized mount option "iochars" or missing value EXT4-fs (loop5): Unrecognized mount option "Ne€" or missing value mmap: syz-executor.0 (17982) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst. EXT4-fs (loop5): Unrecognized mount option "Ne€" or missing value audit: type=1804 audit(1603095942.278:46): pid=18020 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-testdir092681673/syzkaller.EqIrBw/818/file0" dev="sda1" ino=15759 res=1 audit: type=1804 audit(1603095943.118:47): pid=18062 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-testdir092681673/syzkaller.EqIrBw/818/file0" dev="sda1" ino=15759 res=1 usb 20-1: device descriptor read/8, error -110 usb 20-1: new SuperSpeed Gen 1 USB device number 2 using vhci_hcd usb 20-1: enqueue for inactive port 0 usb 20-1: enqueue for inactive port 0 device team1 entered promiscuous mode usb 20-1: enqueue for inactive port 0 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. FAT-fs (loop3): Unrecognized mount option "sys_immutable0'XYc<0v 8(Zwf=^.kZ_Ȧt5GIՠ\Fm^֨r"u _vf<9Gʷ;BYO룏mG5WOc0(jz*2 {<7ځ\i(׀)?Jvt !_^~joid"eZ47|"3 KV|L" or missing value netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. FAT-fs (loop3): Unrecognized mount option "sys_immutable0'XYc<0v 8(Zwf=^.kZ_Ȧt5GIՠ\Fm^֨r"u _vf<9Gʷ;BYO룏mG5WOc0(jz*2 {<7ځ\i(׀)?Jvt !_^~joid"eZ47|"3 KV|L" or missing value netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. bridge1: port 1(syz_tun) entered blocking state IPVS: ftp: loaded support on port[0] = 21 bridge1: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode bridge1: port 2(geneve0) entered blocking state bridge1: port 2(geneve0) entered disabled state device geneve0 entered promiscuous mode device geneve0 left promiscuous mode bridge1: port 2(geneve0) entered disabled state bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) device syz_tun left promiscuous mode bridge1: port 1(syz_tun) entered disabled state usb usb20-port1: Cannot enable. Maybe the USB cable is bad? usb usb20-port1: attempt power cycle bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1)