================================================================================ 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: 16681 Comm: syz-executor.2 Not tainted 4.19.150-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] 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 __ip_queue_xmit+0x8a0/0x1bd0 net/ipv4/ip_output.c:506 __tcp_transmit_skb+0x1c72/0x36c0 net/ipv4/tcp_output.c:1148 tcp_transmit_skb net/ipv4/tcp_output.c:1164 [inline] tcp_send_syn_data net/ipv4/tcp_output.c:3486 [inline] tcp_connect+0x121e/0x2610 net/ipv4/tcp_output.c:3525 tcp_v4_connect+0x141c/0x1aa0 net/ipv4/tcp_ipv4.c:315 __inet_stream_connect+0x836/0xe50 net/ipv4/af_inet.c:655 tcp_sendmsg_fastopen net/ipv4/tcp.c:1185 [inline] tcp_sendmsg_locked+0x22cb/0x2fe0 net/ipv4/tcp.c:1232 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1460 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_sendto+0x21a/0x320 net/socket.c:1787 netlink: 40 bytes leftover after parsing attributes in process `syz-executor.3'. __do_sys_sendto net/socket.c:1799 [inline] __se_sys_sendto net/socket.c:1795 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1795 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:00007fb03dcd2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000002e880 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 000000000118bf78 R08: 0000000020000100 R09: 0000000000000010 R10: 0000000020000802 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe60df8c7f R14: 00007fb03dcd39c0 R15: 000000000118bf2c ================================================================================ IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0xcbf/0xf30 net/netfilter/ipvs/ip_vs_ctl.c:2451 XFS (loop4): Invalid superblock magic number netlink: 'syz-executor.1': attribute type 33 has an invalid length. XFS (loop4): Invalid superblock magic number netlink: 'syz-executor.1': attribute type 33 has an invalid length. netlink: 'syz-executor.1': attribute type 33 has an invalid length. XFS (loop4): Invalid superblock magic number netlink: 'syz-executor.1': attribute type 33 has an invalid length. XFS (loop4): Invalid superblock magic number ptrace attach of "/root/syz-executor.1"[16906] was attempted by "/root/syz-executor.1"[16908] 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. audit: type=1804 audit(1602753573.523:97): pid=17009 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/264/bus" dev="sda1" ino=16745 res=1 audit: type=1804 audit(1602753573.703:98): pid=17000 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/264/file0/bus" dev="ramfs" ino=55177 res=1 audit: type=1804 audit(1602753573.703:99): pid=17009 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/264/file0/bus" dev="ramfs" ino=55177 res=1 audit: type=1804 audit(1602753573.703:100): pid=17005 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/264/file0/bus" dev="ramfs" ino=55177 res=1 audit: type=1804 audit(1602753574.163:101): pid=17036 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/265/bus" dev="sda1" ino=16698 res=1 audit: type=1804 audit(1602753574.213:102): pid=17036 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/265/bus" dev="sda1" ino=16698 res=1 rtc_cmos 00:00: Alarms can be up to one day in the future audit: type=1804 audit(1602753574.223:103): pid=17036 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir967075105/syzkaller.wVk7De/265/bus" dev="sda1" ino=16698 res=1 rtc_cmos 00:00: Alarms can be up to one day in the future audit: type=1804 audit(1602753574.373:104): pid=17045 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-testdir041186074/syzkaller.CF0RPW/31/bus" dev="sda1" ino=16737 res=1 rtc_cmos 00:00: Alarms can be up to one day in the future audit: type=1804 audit(1602753574.533:105): pid=17040 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir041186074/syzkaller.CF0RPW/31/bus" dev="sda1" ino=16737 res=1 rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future audit: type=1804 audit(1602753574.533:106): pid=17040 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir041186074/syzkaller.CF0RPW/31/bus" dev="sda1" ino=16737 res=1 rtc rtc0: __rtc_set_alarm: err=-22 rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future rtc rtc0: __rtc_set_alarm: err=-22 rtc_cmos 00:00: Alarms can be up to one day in the future rtc_cmos 00:00: Alarms can be up to one day in the future