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: 20745 Comm: syz-executor.4 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+0x14df/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+0xc04/0x16b0 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 ip_send_skb net/ipv4/ip_output.c:1447 [inline] ip_push_pending_frames+0x8b/0x140 net/ipv4/ip_output.c:1467 icmp_push_reply+0x3e7/0x580 net/ipv4/icmp.c:395 __icmp_send+0xcd2/0x1550 net/ipv4/icmp.c:744 ipv4_send_dest_unreach net/ipv4/route.c:1220 [inline] ipv4_link_failure+0x623/0xa40 net/ipv4/route.c:1227 dst_link_failure include/net/dst.h:438 [inline] vti_xmit net/ipv4/ip_vti.c:300 [inline] vti_tunnel_xmit+0x49f/0x1920 net/ipv4/ip_vti.c:336 __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+0x2768/0x2ec0 net/core/dev.c:3838 neigh_output include/net/neighbour.h:501 [inline] ip_finish_output2+0xdca/0x16b0 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 ip_send_skb+0x3e/0xe0 net/ipv4/ip_output.c:1447 udp_send_skb+0x72a/0x1240 net/ipv4/udp.c:848 udp_sendmsg+0x1cdb/0x2590 net/ipv4/udp.c:1135 inet_sendmsg+0x174/0x640 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8f0 net/socket.c:2115 __sys_sendmmsg+0x195/0x470 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236 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:00007efbfe82ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045de59 RDX: 0400000000000075 RSI: 0000000020007fc0 RDI: 0000000000000006 RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff4634c40f R14: 00007efbfe82b9c0 R15: 000000000118bf2c ================================================================================ audit: type=1400 audit(1603284413.060:63): avc: denied { dac_override } for pid=20833 comm="syz-executor.4" capability=1 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 audit: type=1400 audit(1603284413.090:64): avc: denied { sys_ptrace } for pid=20827 comm="syz-executor.4" capability=19 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready 8021q: adding VLAN 0 to HW filter on device bond3 (unnamed net_device) (uninitialized): option ad_actor_sys_prio: mode dependency failed, not supported in mode balance-tlb(5) tmpfs: Bad value 'interleave=static :' for mount option 'mpol' netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. tmpfs: Bad value 'interleave=static :' for mount option 'mpol' IPv6: ADDRCONF(NETDEV_UP): bond4: link is not ready 8021q: adding VLAN 0 to HW filter on device bond4 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. netlink: 'syz-executor.3': attribute type 4 has an invalid length. netlink: 'syz-executor.3': attribute type 4 has an invalid length. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond5: link is not ready 8021q: adding VLAN 0 to HW filter on device bond5 netlink: 'syz-executor.3': attribute type 4 has an invalid length. netlink: 'syz-executor.3': attribute type 4 has an invalid length. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond6: link is not ready 8021q: adding VLAN 0 to HW filter on device bond6 netlink: 'syz-executor.3': attribute type 4 has an invalid length. netlink: 'syz-executor.4': attribute type 4 has an invalid length. netlink: 'syz-executor.4': attribute type 4 has an invalid length. qnx6: unable to read the first superblock qnx6: unable to read the first superblock netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. input: syz1 as /devices/virtual/input/input11 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. input: syz1 as /devices/virtual/input/input12 (unnamed net_device) (uninitialized): option packets_per_slave: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option packets_per_slave: allowed values 0 - 65535 (unnamed net_device) (uninitialized): option packets_per_slave: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option packets_per_slave: allowed values 0 - 65535 (unnamed net_device) (uninitialized): option packets_per_slave: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option packets_per_slave: allowed values 0 - 65535