================================================================================ 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: 31367 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] 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] ip6_finish_output2+0xe78/0x2370 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:1328 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x3aec/0x4fd0 net/sctp/sm_sideeffect.c:1170 sctp_assoc_bh_rcv+0x345/0x670 net/sctp/associola.c:1073 sctp_inq_push+0x1fa/0x290 net/sctp/inqueue.c:95 sctp_backlog_rcv+0x209/0x1210 net/sctp/input.c:356 sk_backlog_rcv include/net/sock.h:950 [inline] __release_sock+0x134/0x3a0 net/core/sock.c:2344 release_sock+0x54/0x1b0 net/core/sock.c:2881 sctp_connect net/sctp/socket.c:4525 [inline] sctp_inet_connect+0x15b/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:00007f0a48b9bc78 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: 00007fff43ffae5f R14: 00007f0a48b9c9c0 R15: 000000000118bf2c ================================================================================ (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) EXT4-fs (loop3): corrupt root inode, run e2fsck EXT4-fs (loop3): mount failed EXT4-fs (loop3): corrupt root inode, run e2fsck EXT4-fs (loop3): mount failed (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) audit: type=1400 audit(1603217879.032:57): avc: denied { relabelto } for pid=31511 comm="syz-executor.3" name="NETLINK" dev="sockfs" ino=135300 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:semanage_read_lock_t:s0 tclass=netlink_route_socket permissive=1 (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) kvm_set_msr_common: 1420 callbacks suppressed kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31544]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) REISERFS warning (device loop3): super-6506 reiserfs_getopt: bad value "continue" for option "errors" (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) ptrace attach of ""[31759] was attempted by "/root/syz-executor.3"[31763] (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option arp_validate: invalid value (18446744073709551615) kvm_set_msr_common: 3051 callbacks suppressed kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop kvm [31829]: vcpu0, guest rIP: 0xcc kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop nla_parse: 16 callbacks suppressed netlink: 88 bytes leftover after parsing attributes in process `syz-executor.3'.