xt_SECMARK: invalid security context 'system_u:object_r:systemd_systemctl_exec_t:s0' 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. xt_SECMARK: invalid security context 'system_u:object_r:systemd_systemctl_exec_t:s0' ================================================================================ UBSAN: Undefined behaviour in ./include/net/sch_generic.h:1051:7 shift exponent 129 is too large for 32-bit type 'int' CPU: 1 PID: 9425 Comm: syz-executor.1 Not tainted 4.19.148-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 qdisc_l2t include/net/sch_generic.h:1051 [inline] cbq_update net/sched/sch_cbq.c:567 [inline] cbq_dequeue.cold+0x189/0x18e net/sched/sch_cbq.c:814 dequeue_skb net/sched/sch_generic.c:282 [inline] qdisc_restart net/sched/sch_generic.c:385 [inline] __qdisc_run+0x1b9/0x1670 net/sched/sch_generic.c:403 __dev_xmit_skb net/core/dev.c:3500 [inline] __dev_queue_xmit+0x15ef/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 __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: 0033:0x45dd99 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:00007f7db8db4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000002d680 RCX: 000000000045dd99 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 0000000020000040 R09: 0000000000000010 R10: 0000000020004000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe8e3c9d9f R14: 00007f7db8db59c0 R15: 000000000118bf2c ================================================================================ xt_SECMARK: invalid security context 'system_u:object_r:systemd_systemctl_exec_t:s0' xt_SECMARK: invalid security context 'system_u:object_r:systemd_systemctl_exec_t:s0' audit: type=1400 audit(1601515721.796:12): avc: denied { create } for pid=9698 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Failed to obtain node identity Enabling of bearer rejected, failed to enable media Failed to obtain node identity Enabling of bearer rejected, failed to enable media xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 netlink: 48 bytes leftover after parsing attributes in process `syz-executor.5'. audit: type=1326 audit(1601515725.396:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x50000 audit: type=1326 audit(1601515725.396:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x50000 audit: type=1326 audit(1601515725.396:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515725.396:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x50000 audit: type=1326 audit(1601515725.396:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515725.396:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x50000 audit: type=1326 audit(1601515725.396:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515725.396:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x50000 audit: type=1326 audit(1601515725.396:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 kauditd_printk_skb: 2921 callbacks suppressed audit: type=1326 audit(1601515726.786:2945): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2946): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2947): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2948): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2949): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2920): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=1 compat=0 ip=0x417631 code=0x50000 audit: type=1326 audit(1601515726.786:2951): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=1 compat=0 ip=0x417631 code=0x50000 audit: type=1326 audit(1601515726.786:2950): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000 audit: type=1326 audit(1601515726.786:2952): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=1 compat=0 ip=0x417631 code=0x50000 audit: type=1326 audit(1601515726.786:2953): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=9974 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x45dd99 code=0x50000