[info] Using makefile-style concurrent boot in runlevel 2. [ 26.027011] audit: type=1800 audit(1544463941.261:21): pid=5829 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 26.054145] audit: type=1800 audit(1544463941.271:22): pid=5829 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.686605] Started in network mode [ 34.690403] Own node identity 00000000000000000000000000000001, cluster identity 4711 [ 34.699030] New replicast peer: fe80:0000:0000:0000:0000:0000:0000:00aa [ 34.706328] ================================================================== [ 34.713794] BUG: KASAN: use-after-free in kfree_skb+0xb7/0x580 [ 34.719760] Read of size 4 at addr ffff8881bd5584a4 by task syz-executor589/5983 [ 34.727273] [ 34.728889] CPU: 1 PID: 5983 Comm: syz-executor589 Not tainted 4.20.0-rc6+ #273 [ 34.736324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.745659] Call Trace: [ 34.748235] dump_stack+0x244/0x39d [ 34.751850] ? dump_stack_print_info.cold.1+0x20/0x20 [ 34.757028] ? printk+0xa7/0xcf [ 34.760291] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 34.765051] print_address_description.cold.7+0x9/0x1ff [ 34.770410] kasan_report.cold.8+0x242/0x309 [ 34.774816] ? kfree_skb+0xb7/0x580 [ 34.778432] check_memory_region+0x13e/0x1b0 [ 34.782832] kasan_check_read+0x11/0x20 [ 34.786895] kfree_skb+0xb7/0x580 [ 34.790337] ? __kfree_skb+0x20/0x20 [ 34.794039] ? skb_tstamp_tx+0x50/0x50 [ 34.797922] tipc_udp_send_msg+0x5a6/0x670 [ 34.802143] ? tipc_udp_xmit.isra.14+0xef0/0xef0 [ 34.806883] ? bearer_get+0x2f8/0x4e0 [ 34.810678] ? __tipc_nl_add_media+0xca0/0xca0 [ 34.815252] ? kasan_check_read+0x11/0x20 [ 34.819386] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 34.824645] ? rcu_softirq_qs+0x20/0x20 [ 34.828604] ? tipc_disc_remove_dest+0x120/0x120 [ 34.833431] ? tipc_enable_bearer+0x90d/0xf10 [ 34.837998] ? rcu_read_lock_sched_held+0x14f/0x180 [ 34.843002] tipc_bearer_xmit_skb+0x171/0x350 [ 34.847594] tipc_enable_bearer+0xc5e/0xf10 [ 34.851903] ? mutex_trylock+0x2b0/0x2b0 [ 34.855951] ? tipc_bearer_xmit_skb+0x350/0x350 [ 34.860609] ? nla_memcmp+0x90/0x90 [ 34.864227] ? lock_release+0xa00/0xa00 [ 34.868203] ? perf_trace_sched_process_exec+0x860/0x860 [ 34.873636] ? mark_held_locks+0x130/0x130 [ 34.877889] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 34.882628] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 34.887544] ? tipc_nl_bearer_disable+0x30/0x30 [ 34.892206] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.897731] ? __nla_parse+0x12c/0x3e0 [ 34.901611] tipc_nl_bearer_enable+0x22/0x30 [ 34.906010] genl_family_rcv_msg+0x8a7/0x11a0 [ 34.910493] ? genl_unregister_family+0x8a0/0x8a0 [ 34.915323] ? lock_downgrade+0x900/0x900 [ 34.919459] ? check_preemption_disabled+0x48/0x280 [ 34.924464] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 34.929379] ? kasan_check_read+0x11/0x20 [ 34.933512] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 34.938769] ? rcu_softirq_qs+0x20/0x20 [ 34.942758] genl_rcv_msg+0xc6/0x168 [ 34.946457] netlink_rcv_skb+0x172/0x440 [ 34.950502] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 34.955244] ? netlink_ack+0xb80/0xb80 [ 34.959116] ? down_read+0x8d/0x120 [ 34.962732] genl_rcv+0x28/0x40 [ 34.965996] netlink_unicast+0x5a5/0x760 [ 34.970057] ? netlink_attachskb+0x9a0/0x9a0 [ 34.974453] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.979984] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.984995] netlink_sendmsg+0xa18/0xfc0 [ 34.989043] ? netlink_unicast+0x760/0x760 [ 34.993371] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 34.998312] ? apparmor_socket_sendmsg+0x29/0x30 [ 35.003052] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.008595] ? security_socket_sendmsg+0x94/0xc0 [ 35.013425] ? netlink_unicast+0x760/0x760 [ 35.017645] sock_sendmsg+0xd5/0x120 [ 35.021344] ___sys_sendmsg+0x7fd/0x930 [ 35.025310] ? copy_msghdr_from_user+0x580/0x580 [ 35.030061] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 35.035502] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.041046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.046567] ? __fget_light+0x2e9/0x430 [ 35.050528] ? fget_raw+0x20/0x20 [ 35.053971] ? task_work_run+0x1af/0x2a0 [ 35.058020] ? _raw_spin_unlock_irq+0x27/0x80 [ 35.062513] ? _raw_spin_unlock_irq+0x27/0x80 [ 35.067012] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 35.071598] ? trace_hardirqs_on+0xbd/0x310 [ 35.075906] ? kasan_check_read+0x11/0x20 [ 35.080056] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.085577] ? sockfd_lookup_light+0xc5/0x160 [ 35.090062] __sys_sendmsg+0x11d/0x280 [ 35.093939] ? __ia32_sys_shutdown+0x80/0x80 [ 35.098332] ? do_fast_syscall_32+0xcd5/0xfb2 [ 35.102812] ? trace_hardirqs_on+0x310/0x310 [ 35.107223] ? do_fast_syscall_32+0x150/0xfb2 [ 35.111707] ? do_fast_syscall_32+0x150/0xfb2 [ 35.116189] ? trace_hardirqs_off_caller+0x310/0x310 [ 35.121279] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.126812] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 35.131551] do_fast_syscall_32+0x34d/0xfb2 [ 35.135867] ? do_int80_syscall_32+0x890/0x890 [ 35.140437] ? entry_SYSENTER_compat+0x68/0x7f [ 35.145006] ? trace_hardirqs_off_caller+0xbb/0x310 [ 35.150013] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.154948] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.159793] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.164620] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.169625] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 35.174626] ? prepare_exit_to_usermode+0x291/0x3b0 [ 35.179643] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.184477] entry_SYSENTER_compat+0x70/0x7f [ 35.188890] RIP: 0023:0xf7f61a29 [ 35.192243] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 35.211131] RSP: 002b:00000000ffd439dc EFLAGS: 00000213 ORIG_RAX: 0000000000000172 [ 35.218821] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000700 [ 35.226074] RDX: 0000000000000000 RSI: 00000000080ef080 RDI: 00000000ffd43a30 [ 35.233328] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 [ 35.240581] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 35.247836] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 35.255115] [ 35.256727] Allocated by task 5983: [ 35.260346] save_stack+0x43/0xd0 [ 35.263791] kasan_kmalloc+0xc7/0xe0 [ 35.267486] kasan_slab_alloc+0x12/0x20 [ 35.271443] kmem_cache_alloc_node+0x144/0x730 [ 35.276009] __alloc_skb+0x119/0x770 [ 35.279704] __pskb_copy_fclone+0x16b/0xeb0 [ 35.284014] tipc_udp_send_msg+0x44e/0x670 [ 35.288234] tipc_bearer_xmit_skb+0x171/0x350 [ 35.292714] tipc_enable_bearer+0xc5e/0xf10 [ 35.297017] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 35.301756] tipc_nl_bearer_enable+0x22/0x30 [ 35.306158] genl_family_rcv_msg+0x8a7/0x11a0 [ 35.310638] genl_rcv_msg+0xc6/0x168 [ 35.314334] netlink_rcv_skb+0x172/0x440 [ 35.318374] genl_rcv+0x28/0x40 [ 35.321635] netlink_unicast+0x5a5/0x760 [ 35.325676] netlink_sendmsg+0xa18/0xfc0 [ 35.329720] sock_sendmsg+0xd5/0x120 [ 35.333431] ___sys_sendmsg+0x7fd/0x930 [ 35.337386] __sys_sendmsg+0x11d/0x280 [ 35.341345] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 35.346099] do_fast_syscall_32+0x34d/0xfb2 [ 35.350404] entry_SYSENTER_compat+0x70/0x7f [ 35.354795] [ 35.356402] Freed by task 5983: [ 35.359664] save_stack+0x43/0xd0 [ 35.363112] __kasan_slab_free+0x102/0x150 [ 35.367330] kasan_slab_free+0xe/0x10 [ 35.371115] kmem_cache_free+0x83/0x290 [ 35.375072] kfree_skbmem+0x154/0x230 [ 35.378869] kfree_skb+0x1c3/0x580 [ 35.382412] tipc_udp_xmit.isra.14+0x420/0xef0 [ 35.387215] tipc_udp_send_msg+0x398/0x670 [ 35.391437] tipc_bearer_xmit_skb+0x171/0x350 [ 35.395914] tipc_enable_bearer+0xc5e/0xf10 [ 35.400232] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 35.404980] tipc_nl_bearer_enable+0x22/0x30 [ 35.409371] genl_family_rcv_msg+0x8a7/0x11a0 [ 35.413862] genl_rcv_msg+0xc6/0x168 [ 35.417571] netlink_rcv_skb+0x172/0x440 [ 35.421613] genl_rcv+0x28/0x40 [ 35.424961] netlink_unicast+0x5a5/0x760 [ 35.429021] netlink_sendmsg+0xa18/0xfc0 [ 35.433064] sock_sendmsg+0xd5/0x120 [ 35.436783] ___sys_sendmsg+0x7fd/0x930 [ 35.440745] __sys_sendmsg+0x11d/0x280 [ 35.444635] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 35.449377] do_fast_syscall_32+0x34d/0xfb2 [ 35.453681] entry_SYSENTER_compat+0x70/0x7f [ 35.458066] [ 35.459677] The buggy address belongs to the object at ffff8881bd5583c0 [ 35.459677] which belongs to the cache skbuff_head_cache of size 232 [ 35.472854] The buggy address is located 228 bytes inside of [ 35.472854] 232-byte region [ffff8881bd5583c0, ffff8881bd5584a8) [ 35.484708] The buggy address belongs to the page: [ 35.489631] page:ffffea0006f55600 count:1 mapcount:0 mapping:ffff8881d9bee600 index:0x0 [ 35.497852] flags: 0x2fffc0000000200(slab) [ 35.502071] raw: 02fffc0000000200 ffffea000735e748 ffffea0006f5f4c8 ffff8881d9bee600 [ 35.509955] raw: 0000000000000000 ffff8881bd558000 000000010000000c 0000000000000000 [ 35.517830] page dumped because: kasan: bad access detected [ 35.523620] [ 35.525226] Memory state around the buggy address: [ 35.530141] ffff8881bd558380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 35.537492] ffff8881bd558400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.544836] >ffff8881bd558480: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc [ 35.552192] ^ [ 35.556587] ffff8881bd558500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.563936] ffff8881bd558580: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 35.571291] ================================================================== [ 35.578631] Disabling lock debugging due to kernel taint [ 35.584199] ================================================================== [ 35.591595] BUG: KASAN: double-free or invalid-free in skb_free_head+0x99/0xc0 [ 35.599022] [ 35.600635] CPU: 1 PID: 5983 Comm: syz-executor589 Tainted: G B 4.20.0-rc6+ #273 [ 35.609449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.618794] Call Trace: [ 35.621361] [ 35.623629] dump_stack+0x244/0x39d [ 35.627255] ? dump_stack_print_info.cold.1+0x20/0x20 [ 35.632442] ? printk+0xa7/0xcf [ 35.635703] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 35.640440] ? debug_check_no_obj_freed+0x305/0x58d [ 35.645453] print_address_description.cold.7+0x9/0x1ff [ 35.650798] ? skb_free_head+0x99/0xc0 [ 35.654676] kasan_report_invalid_free+0x64/0xa0 [ 35.659411] ? skb_free_head+0x99/0xc0 [ 35.663280] __kasan_slab_free+0x13a/0x150 [ 35.667594] ? skb_free_head+0x99/0xc0 [ 35.671474] kasan_slab_free+0xe/0x10 [ 35.675257] kfree+0xcf/0x230 [ 35.678344] skb_free_head+0x99/0xc0 [ 35.682056] skb_release_data+0x70c/0x9a0 [ 35.686187] ? __copy_skb_header+0x350/0x6b0 [ 35.690583] ? skb_tx_error+0x410/0x410 [ 35.694543] ? tipc_udp_xmit.isra.14+0x425/0xef0 [ 35.699282] ? kasan_end_report+0x32/0x4f [ 35.703407] ? kasan_report.cold.8+0x76/0x309 [ 35.707898] skb_release_all+0x4a/0x60 [ 35.711782] kfree_skb+0x1bb/0x580 [ 35.715306] ? tipc_udp_send_msg+0x5a6/0x670 [ 35.719707] ? __kfree_skb+0x20/0x20 [ 35.723424] ? skb_tstamp_tx+0x50/0x50 [ 35.727303] tipc_udp_send_msg+0x5a6/0x670 [ 35.731521] ? tipc_udp_xmit.isra.14+0xef0/0xef0 [ 35.736259] ? bearer_get+0x2f8/0x4e0 [ 35.740041] ? __tipc_nl_add_media+0xca0/0xca0 [ 35.745030] ? skb_clone+0x21a/0x500 [ 35.748748] ? _raw_spin_unlock_bh+0x30/0x40 [ 35.753141] ? trace_hardirqs_off_caller+0x310/0x310 [ 35.758228] ? do_raw_spin_trylock+0x270/0x270 [ 35.762816] tipc_bearer_xmit_skb+0x171/0x350 [ 35.767294] tipc_disc_timeout+0xb2b/0xfc0 [ 35.771514] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 35.776686] ? lock_acquire+0x1ed/0x520 [ 35.780641] ? call_timer_fn+0x1db/0x920 [ 35.784685] ? lock_release+0xa00/0xa00 [ 35.788642] ? cpuacct_css_alloc+0x160/0x160 [ 35.793037] call_timer_fn+0x272/0x920 [ 35.796921] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 35.802106] ? process_timeout+0x40/0x40 [ 35.806148] ? trace_hardirqs_off+0xb8/0x310 [ 35.810550] ? kasan_check_read+0x11/0x20 [ 35.814678] ? do_raw_spin_unlock+0xa7/0x330 [ 35.819067] ? trace_hardirqs_on+0x310/0x310 [ 35.823467] ? __run_timers+0x7da/0xc70 [ 35.827448] ? lock_downgrade+0x900/0x900 [ 35.831580] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 35.836752] ? trace_hardirqs_on+0xbd/0x310 [ 35.841055] ? kasan_check_read+0x11/0x20 [ 35.845189] ? __run_timers+0x7da/0xc70 [ 35.849158] ? trace_hardirqs_off_caller+0x310/0x310 [ 35.854250] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.859772] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 35.864942] __run_timers+0x7e5/0xc70 [ 35.868746] ? timer_fixup_init+0x70/0x70 [ 35.872876] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 35.877959] ? timerqueue_add+0x207/0x2b0 [ 35.882116] ? enqueue_hrtimer+0x1a5/0x560 [ 35.886334] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 35.891504] ? rwlock_bug.part.2+0x90/0x90 [ 35.895728] ? hrtimer_forward+0x1e5/0x2a0 [ 35.899952] ? pvclock_read_flags+0x160/0x160 [ 35.904439] ? lock_downgrade+0x900/0x900 [ 35.908575] ? trace_hardirqs_on+0xbd/0x310 [ 35.912880] ? kvm_sched_clock_read+0x9/0x20 [ 35.917269] ? irq_exit+0x17f/0x1c0 [ 35.920883] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.926408] ? check_preemption_disabled+0x48/0x280 [ 35.931479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.937000] run_timer_softirq+0x52/0xb0 [ 35.941061] ? __this_cpu_preempt_check+0x1c/0x20 [ 35.945886] __do_softirq+0x308/0xb7e [ 35.949670] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 35.954161] ? lock_downgrade+0x900/0x900 [ 35.958290] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 35.963380] ? pvclock_read_flags+0x160/0x160 [ 35.967857] ? lapic_next_event+0x5a/0x90 [ 35.971993] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.977513] ? clockevents_program_event+0x140/0x370 [ 35.982602] ? kvm_clock_read+0x18/0x30 [ 35.986555] ? kvm_sched_clock_read+0x9/0x20 [ 35.990956] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.996499] ? check_preemption_disabled+0x48/0x280 [ 36.001498] irq_exit+0x17f/0x1c0 [ 36.004959] smp_apic_timer_interrupt+0x1cb/0x760 [ 36.009790] ? smp_reschedule_interrupt+0x109/0x650 [ 36.014791] ? smp_call_function_single_interrupt+0x650/0x650 [ 36.020656] ? interrupt_entry+0xb5/0xc0 [ 36.024700] ? trace_hardirqs_off_caller+0xbb/0x310 [ 36.029710] ? trace_hardirqs_off_caller+0xbb/0x310 [ 36.034722] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.039552] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.044554] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.049560] ? task_prio+0x50/0x50 [ 36.053086] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.058607] ? check_preemption_disabled+0x48/0x280 [ 36.063611] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.068441] apic_timer_interrupt+0xf/0x20 [ 36.072654] [ 36.074879] RIP: 0010:_raw_spin_unlock_irqrestore+0xaf/0xd0 [ 36.080584] Code: f0 00 52 89 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 28 48 83 3d 18 ef 76 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb ad e8 1c 6b 25 f9 eb bb 0f 0b 0f 0b e8 9a d7 e7 [ 36.099466] RSP: 0018:ffff8881c236ed98 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 36.107158] RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff8185acea [ 36.114421] RDX: 1ffffffff12a401e RSI: ffffffff8185ad04 RDI: 0000000000000286 [ 36.121670] RBP: ffff8881c236eda8 R08: ffff8881c22ce600 R09: fffffbfff12c7248 [ 36.128919] R10: fffffbfff12c7248 R11: ffffffff89639243 R12: ffffffff89639240 [ 36.136171] R13: 0000000000000000 R14: ffff8881bd5584a4 R15: ffff8881bd5584a4 [ 36.143442] ? trace_hardirqs_on+0x9a/0x310 [ 36.147744] ? trace_hardirqs_on+0xb4/0x310 [ 36.152049] kasan_end_report+0x32/0x4f [ 36.156001] kasan_report.cold.8+0x76/0x309 [ 36.160304] ? kfree_skb+0xb7/0x580 [ 36.163915] check_memory_region+0x13e/0x1b0 [ 36.168306] kasan_check_read+0x11/0x20 [ 36.172263] kfree_skb+0xb7/0x580 [ 36.175702] ? __kfree_skb+0x20/0x20 [ 36.179398] ? skb_tstamp_tx+0x50/0x50 [ 36.183274] tipc_udp_send_msg+0x5a6/0x670 [ 36.187493] ? tipc_udp_xmit.isra.14+0xef0/0xef0 [ 36.192231] ? bearer_get+0x2f8/0x4e0 [ 36.196012] ? __tipc_nl_add_media+0xca0/0xca0 [ 36.200573] ? kasan_check_read+0x11/0x20 [ 36.204709] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 36.209967] ? rcu_softirq_qs+0x20/0x20 [ 36.213929] ? tipc_disc_remove_dest+0x120/0x120 [ 36.218682] ? tipc_enable_bearer+0x90d/0xf10 [ 36.223170] ? rcu_read_lock_sched_held+0x14f/0x180 [ 36.228170] tipc_bearer_xmit_skb+0x171/0x350 [ 36.232653] tipc_enable_bearer+0xc5e/0xf10 [ 36.236955] ? mutex_trylock+0x2b0/0x2b0 [ 36.241002] ? tipc_bearer_xmit_skb+0x350/0x350 [ 36.245652] ? nla_memcmp+0x90/0x90 [ 36.249263] ? lock_release+0xa00/0xa00 [ 36.253218] ? perf_trace_sched_process_exec+0x860/0x860 [ 36.258651] ? mark_held_locks+0x130/0x130 [ 36.262888] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 36.267732] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 36.272642] ? tipc_nl_bearer_disable+0x30/0x30 [ 36.277298] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.282819] ? __nla_parse+0x12c/0x3e0 [ 36.286698] tipc_nl_bearer_enable+0x22/0x30 [ 36.291093] genl_family_rcv_msg+0x8a7/0x11a0 [ 36.295572] ? genl_unregister_family+0x8a0/0x8a0 [ 36.300409] ? lock_downgrade+0x900/0x900 [ 36.305408] ? check_preemption_disabled+0x48/0x280 [ 36.310410] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 36.315327] ? kasan_check_read+0x11/0x20 [ 36.319467] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 36.324842] ? rcu_softirq_qs+0x20/0x20 [ 36.328805] genl_rcv_msg+0xc6/0x168 [ 36.332502] netlink_rcv_skb+0x172/0x440 [ 36.336545] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 36.341282] ? netlink_ack+0xb80/0xb80 [ 36.345167] ? down_read+0x8d/0x120 [ 36.348779] genl_rcv+0x28/0x40 [ 36.352041] netlink_unicast+0x5a5/0x760 [ 36.356087] ? netlink_attachskb+0x9a0/0x9a0 [ 36.360479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.365993] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.371002] netlink_sendmsg+0xa18/0xfc0 [ 36.375048] ? netlink_unicast+0x760/0x760 [ 36.379264] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 36.384178] ? apparmor_socket_sendmsg+0x29/0x30 [ 36.388924] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.394446] ? security_socket_sendmsg+0x94/0xc0 [ 36.399187] ? netlink_unicast+0x760/0x760 [ 36.403405] sock_sendmsg+0xd5/0x120 [ 36.407101] ___sys_sendmsg+0x7fd/0x930 [ 36.411057] ? copy_msghdr_from_user+0x580/0x580 [ 36.415800] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 36.421244] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.426765] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.432282] ? __fget_light+0x2e9/0x430 [ 36.436236] ? fget_raw+0x20/0x20 [ 36.439680] ? task_work_run+0x1af/0x2a0 [ 36.443729] ? _raw_spin_unlock_irq+0x27/0x80 [ 36.448207] ? _raw_spin_unlock_irq+0x27/0x80 [ 36.452690] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 36.457268] ? trace_hardirqs_on+0xbd/0x310 [ 36.461575] ? kasan_check_read+0x11/0x20 [ 36.465710] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.471234] ? sockfd_lookup_light+0xc5/0x160 [ 36.475714] __sys_sendmsg+0x11d/0x280 [ 36.479584] ? __ia32_sys_shutdown+0x80/0x80 [ 36.483999] ? do_fast_syscall_32+0xcd5/0xfb2 [ 36.488477] ? trace_hardirqs_on+0x310/0x310 [ 36.492889] ? do_fast_syscall_32+0x150/0xfb2 [ 36.497368] ? do_fast_syscall_32+0x150/0xfb2 [ 36.501847] ? trace_hardirqs_off_caller+0x310/0x310 [ 36.506942] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.512462] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 36.517219] do_fast_syscall_32+0x34d/0xfb2 [ 36.521526] ? do_int80_syscall_32+0x890/0x890 [ 36.526091] ? entry_SYSENTER_compat+0x68/0x7f [ 36.530655] ? trace_hardirqs_off_caller+0xbb/0x310 [ 36.535697] ? syscall_return_slowpath+0x5e0/0x5e0 [ 36.540611] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.545433] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.550256] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.555256] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 36.560258] ? prepare_exit_to_usermode+0x291/0x3b0 [ 36.565257] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.570083] entry_SYSENTER_compat+0x70/0x7f [ 36.574580] RIP: 0023:0xf7f61a29 [ 36.577943] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 36.596911] RSP: 002b:00000000ffd439dc EFLAGS: 00000213 ORIG_RAX: 0000000000000172 [ 36.604613] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000700 [ 36.611882] RDX: 0000000000000000 RSI: 00000000080ef080 RDI: 00000000ffd43a30 [ 36.619135] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 [ 36.626386] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 36.633647] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 36.640924] [ 36.642535] Allocated by task 5983: [ 36.646155] save_stack+0x43/0xd0 [ 36.649595] kasan_kmalloc+0xc7/0xe0 [ 36.653292] __kmalloc_node_track_caller+0x50/0x70 [ 36.658202] __kmalloc_reserve.isra.40+0x41/0xe0 [ 36.662936] __alloc_skb+0x155/0x770 [ 36.666629] __pskb_copy_fclone+0x16b/0xeb0 [ 36.670941] tipc_udp_send_msg+0x44e/0x670 [ 36.675189] tipc_bearer_xmit_skb+0x171/0x350 [ 36.679675] tipc_disc_timeout+0xb2b/0xfc0 [ 36.683894] call_timer_fn+0x272/0x920 [ 36.687767] __run_timers+0x7e5/0xc70 [ 36.691550] run_timer_softirq+0x52/0xb0 [ 36.695594] __do_softirq+0x308/0xb7e [ 36.699380] [ 36.700987] Freed by task 5983: [ 36.704250] save_stack+0x43/0xd0 [ 36.707683] __kasan_slab_free+0x102/0x150 [ 36.711900] kasan_slab_free+0xe/0x10 [ 36.715681] kfree+0xcf/0x230 [ 36.718767] skb_free_head+0x99/0xc0 [ 36.722461] skb_release_data+0x70c/0x9a0 [ 36.726587] skb_release_all+0x4a/0x60 [ 36.730451] kfree_skb+0x1bb/0x580 [ 36.733970] tipc_udp_xmit.isra.14+0x420/0xef0 [ 36.738546] tipc_udp_send_msg+0x398/0x670 [ 36.742763] tipc_bearer_xmit_skb+0x171/0x350 [ 36.747236] tipc_disc_timeout+0xb2b/0xfc0 [ 36.751470] call_timer_fn+0x272/0x920 [ 36.755334] __run_timers+0x7e5/0xc70 [ 36.759112] run_timer_softirq+0x52/0xb0 [ 36.763247] __do_softirq+0x308/0xb7e [ 36.767021] [ 36.768652] The buggy address belongs to the object at ffff8881cd1ba940 [ 36.768652] which belongs to the cache kmalloc-1k of size 1024 [ 36.781435] The buggy address is located 0 bytes inside of [ 36.781435] 1024-byte region [ffff8881cd1ba940, ffff8881cd1bad40) [ 36.793200] The buggy address belongs to the page: [ 36.798128] page:ffffea0007346e80 count:1 mapcount:0 mapping:ffff8881da800ac0 index:0x0 compound_mapcount: 0 [ 36.808077] flags: 0x2fffc0000010200(slab|head) [ 36.812732] raw: 02fffc0000010200 ffffea0007347808 ffffea0007332388 ffff8881da800ac0 [ 36.820592] raw: 0000000000000000 ffff8881cd1ba040 0000000100000007 0000000000000000 [ 36.828448] page dumped because: kasan: bad access detected [ 36.834139] [ 36.835755] Memory state around the buggy address: [ 36.840669] ffff8881cd1ba800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 36.848008] ffff8881cd1ba880: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 36.855365] >ffff8881cd1ba900: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 36.862715] ^ [ 36.868148] ffff8881cd1ba980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 36.875488] ffff8881cd1baa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 36.882909] ================================================================== [ 36.890254] Kernel panic - not syncing: panic_on_warn set ... [ 36.896134] CPU: 1 PID: 5983 Comm: syz-executor589 Tainted: G B 4.20.0-rc6+ #273 [ 36.904955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.914391] Call Trace: [ 36.916957] [ 36.919103] dump_stack+0x244/0x39d [ 36.922715] ? dump_stack_print_info.cold.1+0x20/0x20 [ 36.927891] ? skb_free_head+0x30/0xc0 [ 36.931765] panic+0x2ad/0x55c [ 36.934939] ? add_taint.cold.5+0x16/0x16 [ 36.939089] ? print_shadow_for_address+0xb6/0x116 [ 36.944003] ? trace_hardirqs_off+0xaf/0x310 [ 36.948397] ? skb_free_head+0x99/0xc0 [ 36.952284] kasan_end_report+0x47/0x4f [ 36.956240] kasan_report_invalid_free+0x81/0xa0 [ 36.960975] ? skb_free_head+0x99/0xc0 [ 36.964937] __kasan_slab_free+0x13a/0x150 [ 36.969166] ? skb_free_head+0x99/0xc0 [ 36.973035] kasan_slab_free+0xe/0x10 [ 36.976885] kfree+0xcf/0x230 [ 36.979980] skb_free_head+0x99/0xc0 [ 36.983683] skb_release_data+0x70c/0x9a0 [ 36.987813] ? __copy_skb_header+0x350/0x6b0 [ 36.992223] ? skb_tx_error+0x410/0x410 [ 36.996184] ? tipc_udp_xmit.isra.14+0x425/0xef0 [ 37.000919] ? kasan_end_report+0x32/0x4f [ 37.005063] ? kasan_report.cold.8+0x76/0x309 [ 37.009547] skb_release_all+0x4a/0x60 [ 37.013420] kfree_skb+0x1bb/0x580 [ 37.016947] ? tipc_udp_send_msg+0x5a6/0x670 [ 37.021337] ? __kfree_skb+0x20/0x20 [ 37.025032] ? skb_tstamp_tx+0x50/0x50 [ 37.028915] tipc_udp_send_msg+0x5a6/0x670 [ 37.033160] ? tipc_udp_xmit.isra.14+0xef0/0xef0 [ 37.037901] ? bearer_get+0x2f8/0x4e0 [ 37.041698] ? __tipc_nl_add_media+0xca0/0xca0 [ 37.046265] ? skb_clone+0x21a/0x500 [ 37.049968] ? _raw_spin_unlock_bh+0x30/0x40 [ 37.054368] ? trace_hardirqs_off_caller+0x310/0x310 [ 37.059457] ? do_raw_spin_trylock+0x270/0x270 [ 37.064023] tipc_bearer_xmit_skb+0x171/0x350 [ 37.068524] tipc_disc_timeout+0xb2b/0xfc0 [ 37.072750] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 37.077927] ? lock_acquire+0x1ed/0x520 [ 37.081887] ? call_timer_fn+0x1db/0x920 [ 37.085948] ? lock_release+0xa00/0xa00 [ 37.089906] ? cpuacct_css_alloc+0x160/0x160 [ 37.094302] call_timer_fn+0x272/0x920 [ 37.098172] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 37.103343] ? process_timeout+0x40/0x40 [ 37.107388] ? trace_hardirqs_off+0xb8/0x310 [ 37.111780] ? kasan_check_read+0x11/0x20 [ 37.115926] ? do_raw_spin_unlock+0xa7/0x330 [ 37.120331] ? trace_hardirqs_on+0x310/0x310 [ 37.124724] ? __run_timers+0x7da/0xc70 [ 37.128682] ? lock_downgrade+0x900/0x900 [ 37.132816] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 37.137901] ? trace_hardirqs_on+0xbd/0x310 [ 37.142204] ? kasan_check_read+0x11/0x20 [ 37.146425] ? __run_timers+0x7da/0xc70 [ 37.150384] ? trace_hardirqs_off_caller+0x310/0x310 [ 37.155473] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.160998] ? tipc_disc_msg_xmit.isra.19+0x180/0x180 [ 37.166171] __run_timers+0x7e5/0xc70 [ 37.169956] ? timer_fixup_init+0x70/0x70 [ 37.174095] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 37.179090] ? timerqueue_add+0x207/0x2b0 [ 37.183220] ? enqueue_hrtimer+0x1a5/0x560 [ 37.187437] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 37.192608] ? rwlock_bug.part.2+0x90/0x90 [ 37.196831] ? hrtimer_forward+0x1e5/0x2a0 [ 37.201052] ? pvclock_read_flags+0x160/0x160 [ 37.205530] ? lock_downgrade+0x900/0x900 [ 37.209673] ? trace_hardirqs_on+0xbd/0x310 [ 37.213976] ? kvm_sched_clock_read+0x9/0x20 [ 37.218366] ? irq_exit+0x17f/0x1c0 [ 37.221994] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.227515] ? check_preemption_disabled+0x48/0x280 [ 37.232514] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.238033] run_timer_softirq+0x52/0xb0 [ 37.242093] ? __this_cpu_preempt_check+0x1c/0x20 [ 37.246924] __do_softirq+0x308/0xb7e [ 37.250725] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 37.255203] ? lock_downgrade+0x900/0x900 [ 37.259334] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 37.264426] ? pvclock_read_flags+0x160/0x160 [ 37.268938] ? lapic_next_event+0x5a/0x90 [ 37.273075] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.278597] ? clockevents_program_event+0x140/0x370 [ 37.283692] ? kvm_clock_read+0x18/0x30 [ 37.287650] ? kvm_sched_clock_read+0x9/0x20 [ 37.292063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.297590] ? check_preemption_disabled+0x48/0x280 [ 37.302610] irq_exit+0x17f/0x1c0 [ 37.306053] smp_apic_timer_interrupt+0x1cb/0x760 [ 37.310878] ? smp_reschedule_interrupt+0x109/0x650 [ 37.315880] ? smp_call_function_single_interrupt+0x650/0x650 [ 37.321748] ? interrupt_entry+0xb5/0xc0 [ 37.325791] ? trace_hardirqs_off_caller+0xbb/0x310 [ 37.330805] ? trace_hardirqs_off_caller+0xbb/0x310 [ 37.335805] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.340630] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.345626] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.350633] ? task_prio+0x50/0x50 [ 37.354158] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.359676] ? check_preemption_disabled+0x48/0x280 [ 37.364675] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.369502] apic_timer_interrupt+0xf/0x20 [ 37.373732] [ 37.375954] RIP: 0010:_raw_spin_unlock_irqrestore+0xaf/0xd0 [ 37.381662] Code: f0 00 52 89 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 28 48 83 3d 18 ef 76 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb ad e8 1c 6b 25 f9 eb bb 0f 0b 0f 0b e8 9a d7 e7 [ 37.400828] RSP: 0018:ffff8881c236ed98 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 37.408519] RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff8185acea [ 37.415771] RDX: 1ffffffff12a401e RSI: ffffffff8185ad04 RDI: 0000000000000286 [ 37.423040] RBP: ffff8881c236eda8 R08: ffff8881c22ce600 R09: fffffbfff12c7248 [ 37.430552] R10: fffffbfff12c7248 R11: ffffffff89639243 R12: ffffffff89639240 [ 37.437823] R13: 0000000000000000 R14: ffff8881bd5584a4 R15: ffff8881bd5584a4 [ 37.445084] ? trace_hardirqs_on+0x9a/0x310 [ 37.449390] ? trace_hardirqs_on+0xb4/0x310 [ 37.453697] kasan_end_report+0x32/0x4f [ 37.457651] kasan_report.cold.8+0x76/0x309 [ 37.461956] ? kfree_skb+0xb7/0x580 [ 37.465563] check_memory_region+0x13e/0x1b0 [ 37.469959] kasan_check_read+0x11/0x20 [ 37.473924] kfree_skb+0xb7/0x580 [ 37.477362] ? __kfree_skb+0x20/0x20 [ 37.481071] ? skb_tstamp_tx+0x50/0x50 [ 37.484944] tipc_udp_send_msg+0x5a6/0x670 [ 37.489178] ? tipc_udp_xmit.isra.14+0xef0/0xef0 [ 37.493932] ? bearer_get+0x2f8/0x4e0 [ 37.497732] ? __tipc_nl_add_media+0xca0/0xca0 [ 37.502296] ? kasan_check_read+0x11/0x20 [ 37.506441] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 37.511714] ? rcu_softirq_qs+0x20/0x20 [ 37.515671] ? tipc_disc_remove_dest+0x120/0x120 [ 37.520411] ? tipc_enable_bearer+0x90d/0xf10 [ 37.524894] ? rcu_read_lock_sched_held+0x14f/0x180 [ 37.530028] tipc_bearer_xmit_skb+0x171/0x350 [ 37.534603] tipc_enable_bearer+0xc5e/0xf10 [ 37.538905] ? mutex_trylock+0x2b0/0x2b0 [ 37.542970] ? tipc_bearer_xmit_skb+0x350/0x350 [ 37.547624] ? nla_memcmp+0x90/0x90 [ 37.551237] ? lock_release+0xa00/0xa00 [ 37.555193] ? perf_trace_sched_process_exec+0x860/0x860 [ 37.560623] ? mark_held_locks+0x130/0x130 [ 37.564944] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 37.569681] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 37.574597] ? tipc_nl_bearer_disable+0x30/0x30 [ 37.579254] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.584773] ? __nla_parse+0x12c/0x3e0 [ 37.588641] tipc_nl_bearer_enable+0x22/0x30 [ 37.593050] genl_family_rcv_msg+0x8a7/0x11a0 [ 37.597539] ? genl_unregister_family+0x8a0/0x8a0 [ 37.602493] ? lock_downgrade+0x900/0x900 [ 37.606712] ? check_preemption_disabled+0x48/0x280 [ 37.611712] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 37.616624] ? kasan_check_read+0x11/0x20 [ 37.620755] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 37.626012] ? rcu_softirq_qs+0x20/0x20 [ 37.630000] genl_rcv_msg+0xc6/0x168 [ 37.633710] netlink_rcv_skb+0x172/0x440 [ 37.637769] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 37.642510] ? netlink_ack+0xb80/0xb80 [ 37.646383] ? down_read+0x8d/0x120 [ 37.650001] genl_rcv+0x28/0x40 [ 37.653268] netlink_unicast+0x5a5/0x760 [ 37.657309] ? netlink_attachskb+0x9a0/0x9a0 [ 37.661713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.667235] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.672230] netlink_sendmsg+0xa18/0xfc0 [ 37.676274] ? netlink_unicast+0x760/0x760 [ 37.680488] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 37.685396] ? apparmor_socket_sendmsg+0x29/0x30 [ 37.690140] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.695672] ? security_socket_sendmsg+0x94/0xc0 [ 37.700407] ? netlink_unicast+0x760/0x760 [ 37.704623] sock_sendmsg+0xd5/0x120 [ 37.708325] ___sys_sendmsg+0x7fd/0x930 [ 37.712283] ? copy_msghdr_from_user+0x580/0x580 [ 37.717025] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 37.722458] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.728010] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.733546] ? __fget_light+0x2e9/0x430 [ 37.737521] ? fget_raw+0x20/0x20 [ 37.740961] ? task_work_run+0x1af/0x2a0 [ 37.745180] ? _raw_spin_unlock_irq+0x27/0x80 [ 37.749742] ? _raw_spin_unlock_irq+0x27/0x80 [ 37.754319] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 37.758887] ? trace_hardirqs_on+0xbd/0x310 [ 37.763194] ? kasan_check_read+0x11/0x20 [ 37.767337] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.772856] ? sockfd_lookup_light+0xc5/0x160 [ 37.777334] __sys_sendmsg+0x11d/0x280 [ 37.781206] ? __ia32_sys_shutdown+0x80/0x80 [ 37.785602] ? do_fast_syscall_32+0xcd5/0xfb2 [ 37.790083] ? trace_hardirqs_on+0x310/0x310 [ 37.794483] ? do_fast_syscall_32+0x150/0xfb2 [ 37.798958] ? do_fast_syscall_32+0x150/0xfb2 [ 37.803443] ? trace_hardirqs_off_caller+0x310/0x310 [ 37.808529] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.814049] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 37.818791] do_fast_syscall_32+0x34d/0xfb2 [ 37.823094] ? do_int80_syscall_32+0x890/0x890 [ 37.827660] ? entry_SYSENTER_compat+0x68/0x7f [ 37.832224] ? trace_hardirqs_off_caller+0xbb/0x310 [ 37.837222] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.842131] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.846957] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.851782] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.856780] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 37.861780] ? prepare_exit_to_usermode+0x291/0x3b0 [ 37.866781] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.871614] entry_SYSENTER_compat+0x70/0x7f [ 37.876011] RIP: 0023:0xf7f61a29 [ 37.879373] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 37.898256] RSP: 002b:00000000ffd439dc EFLAGS: 00000213 ORIG_RAX: 0000000000000172 [ 37.905948] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000700 [ 37.913209] RDX: 0000000000000000 RSI: 00000000080ef080 RDI: 00000000ffd43a30 [ 37.920463] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 [ 37.927715] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 37.934965] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 37.943417] Kernel Offset: disabled [ 37.947052] Rebooting in 86400 seconds..