[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 40.870622] audit: type=1400 audit(1602975065.892:8): avc: denied { execmem } for pid=6488 comm="syz-executor143" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 41.590802] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 41.619356] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program [ 41.646848] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 41.670087] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 41.687396] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program executing program executing program [ 41.701916] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 42.224947] ================================================================================ [ 42.233773] UBSAN: Undefined behaviour in ./include/net/red.h:272:18 [ 42.240312] shift exponent 115 is too large for 64-bit type 'long unsigned int' [ 42.247779] CPU: 1 PID: 6501 Comm: syz-executor143 Not tainted 4.19.152-syzkaller #0 [ 42.255702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.265070] Call Trace: [ 42.267665] [ 42.269833] dump_stack+0x22c/0x33e [ 42.273477] ubsan_epilogue+0xe/0x3a [ 42.277203] __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 [ 42.283361] ? mark_held_locks+0xa6/0xf0 [ 42.287442] ? kvm_clock_get_cycles+0x14/0x30 [ 42.291985] ? ktime_get+0x21b/0x320 [ 42.295716] red_adaptative_timer+0x7ed/0x870 [ 42.300233] call_timer_fn+0x177/0x760 [ 42.304133] ? hfsc_dump_class.cold+0x41/0x41 [ 42.308640] ? init_timer_key+0x370/0x370 [ 42.312803] ? _raw_spin_unlock_irq+0x24/0x90 [ 42.317310] ? hfsc_dump_class.cold+0x41/0x41 [ 42.321817] expire_timers+0x243/0x500 [ 42.325718] run_timer_softirq+0x259/0x730 [ 42.329967] ? expire_timers+0x500/0x500 [ 42.334038] ? kvm_sched_clock_read+0x14/0x40 [ 42.338573] ? sched_clock+0x2a/0x50 [ 42.342321] ? sched_clock_cpu+0x18/0x260 [ 42.346580] ? check_preemption_disabled+0x41/0x2b0 [ 42.351652] __do_softirq+0x27d/0xad2 [ 42.355503] irq_exit+0x22d/0x270 [ 42.358967] smp_apic_timer_interrupt+0x15f/0x5d0 [ 42.363824] apic_timer_interrupt+0xf/0x20 [ 42.368060] [ 42.370335] RIP: 0010:_raw_spin_unlock_irq+0x50/0x90 [ 42.375445] Code: c0 f8 89 63 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d 41 5d b2 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 96 d8 9b f9 65 8b 05 ff c0 50 78 85 c0 74 02 5d [ 42.379315] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 42.394363] RSP: 0018:ffff8880a4d372a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 42.394386] RAX: 1ffffffff12c713f RBX: 0000000076d330a8 RCX: 0000000000000000 [ 42.394393] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a32c6cc4 [ 42.394401] RBP: ffff8880ae32c2c0 R08: 0000000000000000 R09: 0000000000000000 [ 42.394408] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae32c2c0 [ 42.394415] R13: ffff8880a496e1c0 R14: 0000000000000000 R15: 0000000000000001 [ 42.394448] ? _raw_spin_unlock_irq+0x24/0x90 [ 42.394460] finish_task_switch+0x174/0x8b0 [ 42.394470] ? finish_task_switch+0x146/0x8b0 [ 42.394487] __schedule+0x8ed/0x22e0 [ 42.394505] ? io_schedule_timeout+0x140/0x140 [ 42.394520] ? find_held_lock+0x2d/0x110 [ 42.394539] ? ___preempt_schedule+0x16/0x18 [ 42.477630] preempt_schedule_common+0x45/0xc0 [ 42.482242] ___preempt_schedule+0x16/0x18 [ 42.486498] ? ip_finish_output2+0xe20/0x1640 [ 42.491052] __local_bh_enable_ip+0x245/0x2a0 [ 42.495570] ip_finish_output2+0xe53/0x1640 [ 42.499916] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.504261] ? lock_downgrade+0x750/0x750 [ 42.508473] ip_finish_output+0x88e/0xd80 [ 42.512636] ip_mc_output+0x268/0xff0 [ 42.516452] ? __ip_queue_xmit+0x1bd0/0x1bd0 [ 42.520893] ? ip_fragment.constprop.0+0x240/0x240 [ 42.525829] ? ip_do_fragment+0x2210/0x2210 [ 42.530165] ip_local_out+0xaf/0x170 [ 42.533888] ip_send_skb+0x3e/0xe0 [ 42.537434] udp_send_skb+0x72a/0x1240 [ 42.541337] udp_sendmsg+0x1cdb/0x2530 [ 42.545238] ? ip_do_fragment+0x2210/0x2210 [ 42.549571] ? __lock_acquire+0x6ec/0x3ff0 [ 42.553814] ? udp_destroy_sock+0x1a0/0x1a0 [ 42.558181] ? rw_copy_check_uvector+0x27c/0x340 [ 42.562961] ? __might_fault+0x192/0x1d0 [ 42.567042] ? __sock_recv_ts_and_drops+0x540/0x540 [ 42.572066] ? find_held_lock+0x2d/0x110 [ 42.576148] inet_sendmsg+0x174/0x640 [ 42.579955] ? security_socket_sendmsg+0x83/0xb0 [ 42.584729] ? inet_sock_destruct+0x800/0x800 [ 42.589236] sock_sendmsg+0xc7/0x130 [ 42.592959] ___sys_sendmsg+0x3b3/0x8f0 [ 42.596943] ? copy_msghdr_from_user+0x440/0x440 [ 42.601710] ? finish_task_switch+0x174/0x8b0 [ 42.606212] ? finish_task_switch+0x146/0x8b0 [ 42.610722] ? mark_held_locks+0xf0/0xf0 [ 42.614800] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.619567] ? find_held_lock+0x2d/0x110 [ 42.623645] ? __might_fault+0x11f/0x1d0 [ 42.627740] ? lock_downgrade+0x750/0x750 [ 42.631897] ? lock_acquire+0x170/0x3f0 [ 42.635880] ? __might_fault+0xef/0x1d0 [ 42.639870] __sys_sendmmsg+0x195/0x470 [ 42.643860] ? __ia32_sys_sendmsg+0x220/0x220 [ 42.648369] ? inet_autobind+0x190/0x190 [ 42.652447] ? __sys_connect+0x140/0x2c0 [ 42.656520] ? __ia32_sys_accept+0xb0/0xb0 [ 42.660759] ? __ia32_sys_socketpair+0xf0/0xf0 [ 42.665359] ? up_read+0x17/0x110 [ 42.669787] ? __do_page_fault+0x1ca/0xe00 [ 42.674053] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.679438] __x64_sys_sendmmsg+0x99/0x100 [ 42.683689] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 42.688292] do_syscall_64+0xf9/0x670 [ 42.692137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.697346] RIP: 0033:0x441909 [ 42.700555] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 6b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 42.719468] RSP: 002b:00007ffe51441778 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 42.727182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441909 [ 42.734449] RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003 [ 42.741736] RBP: 0000000000009fbc R08: 00000000004002c8 R09: 00000000004002c8 [ 42.748996] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402600 [ 42.756285] R13: 0000000000402690 R14: 0000000000000000 R15: 0000000000000000 [ 42.763560] ================================================================================ executing program executing program executing program [ 42.774573] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 42.786942] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 42.816886] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.605381] nla_parse: 27 callbacks suppressed [ 46.605391] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program [ 46.664941] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 46.834266] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 46.871209] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program executing program executing program [ 46.889612] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 46.907907] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 47.368190] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program [ 47.459380] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program executing program executing program [ 47.648131] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. [ 47.674930] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 51.804999] nla_parse: 30 callbacks suppressed [ 51.805009] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program [ 51.924761] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program [ 51.984626] netlink: 1164 bytes leftover after parsing attributes in process `syz-executor143'. executing program