Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. 2020/07/26 15:20:04 parsed 1 programs 2020/07/26 15:20:04 executed programs: 0 [ 48.070899] ip (3412) used greatest stack depth: 11304 bytes left [ 48.675948] dccp_close: ABORT with 24 bytes unread [ 48.678703] dccp_close: ABORT with 24 bytes unread [ 48.697145] dccp_close: ABORT with 24 bytes unread [ 48.708114] dccp_close: ABORT with 24 bytes unread [ 48.708863] dccp_close: ABORT with 24 bytes unread [ 48.729336] dccp_close: ABORT with 24 bytes unread [ 48.740329] dccp_close: ABORT with 24 bytes unread [ 48.760084] dccp_close: ABORT with 24 bytes unread [ 48.760397] dccp_close: ABORT with 24 bytes unread [ 48.771547] dccp_close: ABORT with 24 bytes unread [ 48.861552] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 48.874890] CPU: 0 PID: 4105 Comm: syz-executor2 Not tainted 5.8.0-rc6-syzkaller #0 [ 48.882675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.892025] Call Trace: [ 48.894605] [ 48.896755] dump_stack+0xb9/0xf1 [ 48.900208] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 48.905385] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 48.910050] dccp_deliver_input_to_ccids+0x31/0x70 [ 48.914972] dccp_rcv_established+0x49/0x70 [ 48.919283] dccp_v4_do_rcv+0x3b/0x60 [ 48.923070] __sk_receive_skb+0xcc/0x2b0 [ 48.927118] dccp_v4_rcv+0x44b/0x81a [ 48.930827] ip_protocol_deliver_rcu+0x224/0x270 [ 48.935572] ip_local_deliver_finish+0x8d/0x120 [ 48.940221] ip_local_deliver+0x17f/0x220 [ 48.944359] ? ip_protocol_deliver_rcu+0x270/0x270 [ 48.949283] ip_rcv_finish+0x3d/0x60 [ 48.952993] ip_rcv+0x15d/0x210 [ 48.956266] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 48.961443] ? process_backlog+0x90/0x280 [ 48.965577] __netif_receive_skb_one_core+0x81/0x90 [ 48.970595] __netif_receive_skb+0x13/0x60 [ 48.974821] process_backlog+0x101/0x280 [ 48.978892] net_rx_action+0x16f/0x460 [ 48.982772] ? mark_held_locks+0x4e/0x80 [ 48.986830] __do_softirq+0xd3/0x473 [ 48.990527] ? ip_finish_output2+0x22b/0xa00 [ 48.995037] asm_call_on_stack+0x12/0x20 [ 48.999089] [ 49.001314] do_softirq_own_stack+0x81/0x90 [ 49.005618] do_softirq.part.20+0x8a/0xa0 [ 49.009832] __local_bh_enable_ip+0xf6/0x100 [ 49.014218] ip_finish_output2+0x24f/0xa00 [ 49.018479] __ip_finish_output+0x11e/0x310 [ 49.022778] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 49.028029] ? __ip_finish_output+0x11e/0x310 [ 49.032527] ? ip_output+0x184/0x250 [ 49.036360] ip_finish_output+0x27/0xa0 [ 49.040308] ip_output+0x79/0x250 [ 49.043769] ? __ip_finish_output+0x310/0x310 [ 49.048242] ip_local_out+0x3a/0x60 [ 49.051845] __ip_queue_xmit+0x1e4/0x5e0 [ 49.055967] ip_queue_xmit+0x10/0x20 [ 49.059687] dccp_transmit_skb+0x268/0x420 [ 49.063897] dccp_xmit_packet+0x70/0x170 [ 49.067986] dccp_write_xmit+0x8d/0xb0 [ 49.071841] dccp_sendmsg+0x225/0x3c0 [ 49.075617] inet_sendmsg+0x5f/0x70 [ 49.079217] sock_sendmsg+0x57/0x60 [ 49.082814] ____sys_sendmsg+0x1fc/0x270 [ 49.086975] ? copy_msghdr_from_user+0x5b/0x90 [ 49.091529] ? __lock_acquire+0x4f4/0x1700 [ 49.095737] ___sys_sendmsg+0x77/0xb0 [ 49.099530] ? lock_acquire+0xc9/0x3a0 [ 49.103399] ? find_held_lock+0x35/0xa0 [ 49.107345] ? __fget_files+0xe0/0x1d0 [ 49.111207] ? __fget_files+0xfa/0x1d0 [ 49.115070] __sys_sendmsg+0x5d/0xb0 [ 49.118760] __x64_sys_sendmsg+0x1a/0x20 [ 49.122795] do_syscall_64+0x6e/0xf0 [ 49.126517] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.131781] RIP: 0033:0x453009 [ 49.135034] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.153995] RSP: 002b:00007fa04f022c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.161671] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.168924] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.176189] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.183532] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.190785] R13: 00000000ffffffff R14: 00007fa04f0236d4 R15: 0000000000000002 [ 49.280969] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 49.294348] CPU: 1 PID: 4195 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 49.302141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.311840] Call Trace: [ 49.314412] [ 49.316547] dump_stack+0xb9/0xf1 [ 49.319972] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 49.325147] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.329880] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.334813] dccp_rcv_established+0x49/0x70 [ 49.339125] dccp_v4_do_rcv+0x3b/0x60 [ 49.342992] __sk_receive_skb+0xcc/0x2b0 [ 49.347053] dccp_v4_rcv+0x44b/0x81a [ 49.350781] ip_protocol_deliver_rcu+0x224/0x270 [ 49.355539] ip_local_deliver_finish+0x8d/0x120 [ 49.360217] ip_local_deliver+0x17f/0x220 [ 49.364372] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.369304] ip_rcv_finish+0x3d/0x60 [ 49.373188] ip_rcv+0x15d/0x210 [ 49.376459] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.381633] ? process_backlog+0x90/0x280 [ 49.385761] __netif_receive_skb_one_core+0x81/0x90 [ 49.390776] __netif_receive_skb+0x13/0x60 [ 49.394982] process_backlog+0x101/0x280 [ 49.399018] net_rx_action+0x16f/0x460 [ 49.402910] ? mark_held_locks+0x4e/0x80 [ 49.406950] __do_softirq+0xd3/0x473 [ 49.410636] ? ip_finish_output2+0x22b/0xa00 [ 49.415017] asm_call_on_stack+0x12/0x20 [ 49.419047] [ 49.421258] do_softirq_own_stack+0x81/0x90 [ 49.425672] do_softirq.part.20+0x8a/0xa0 [ 49.429790] __local_bh_enable_ip+0xf6/0x100 [ 49.434168] ip_finish_output2+0x24f/0xa00 [ 49.438465] __ip_finish_output+0x11e/0x310 [ 49.442754] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 49.448003] ? __ip_finish_output+0x11e/0x310 [ 49.452486] ? ip_output+0x184/0x250 [ 49.456175] ip_finish_output+0x27/0xa0 [ 49.460127] ip_output+0x79/0x250 [ 49.463558] ? __ip_finish_output+0x310/0x310 [ 49.468027] ip_local_out+0x3a/0x60 [ 49.471624] __ip_queue_xmit+0x1e4/0x5e0 [ 49.475701] ip_queue_xmit+0x10/0x20 [ 49.479384] dccp_transmit_skb+0x268/0x420 [ 49.483590] dccp_xmit_packet+0x70/0x170 [ 49.487620] dccp_write_xmit+0x8d/0xb0 [ 49.491480] dccp_sendmsg+0x225/0x3c0 [ 49.495255] inet_sendmsg+0x5f/0x70 [ 49.498951] sock_sendmsg+0x57/0x60 [ 49.502553] ____sys_sendmsg+0x1fc/0x270 [ 49.506592] ? copy_msghdr_from_user+0x5b/0x90 [ 49.511152] ? __lock_acquire+0x4f4/0x1700 [ 49.515361] ___sys_sendmsg+0x77/0xb0 [ 49.519134] ? lock_acquire+0xc9/0x3a0 [ 49.522997] ? find_held_lock+0x35/0xa0 [ 49.526996] ? __fget_files+0xe0/0x1d0 [ 49.530858] ? __fget_files+0xfa/0x1d0 [ 49.534809] __sys_sendmsg+0x5d/0xb0 [ 49.538503] __x64_sys_sendmsg+0x1a/0x20 [ 49.542539] do_syscall_64+0x6e/0xf0 [ 49.546237] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.551400] RIP: 0033:0x453009 [ 49.554568] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.573441] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.581117] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.588358] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.595781] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.603026] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.610267] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 50.032865] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 50.046191] CPU: 1 PID: 4496 Comm: syz-executor5 Not tainted 5.8.0-rc6-syzkaller #0 [ 50.053982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.063339] Call Trace: [ 50.065920] [ 50.068061] dump_stack+0xb9/0xf1 [ 50.071509] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 50.076690] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 50.081409] dccp_deliver_input_to_ccids+0x31/0x70 [ 50.086328] dccp_rcv_established+0x49/0x70 [ 50.091285] dccp_v4_do_rcv+0x3b/0x60 [ 50.095199] __sk_receive_skb+0xcc/0x2b0 [ 50.099258] dccp_v4_rcv+0x44b/0x81a [ 50.102959] ip_protocol_deliver_rcu+0x224/0x270 [ 50.107710] ip_local_deliver_finish+0x8d/0x120 [ 50.112463] ip_local_deliver+0x17f/0x220 [ 50.116624] ? ip_protocol_deliver_rcu+0x270/0x270 [ 50.121577] ip_rcv_finish+0x3d/0x60 [ 50.127201] ip_rcv+0x15d/0x210 [ 50.130477] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 50.135670] ? process_backlog+0x90/0x280 [ 50.139845] __netif_receive_skb_one_core+0x81/0x90 [ 50.144859] __netif_receive_skb+0x13/0x60 [ 50.149100] process_backlog+0x101/0x280 [ 50.153172] net_rx_action+0x16f/0x460 [ 50.157058] ? mark_held_locks+0x4e/0x80 [ 50.161116] __do_softirq+0xd3/0x473 [ 50.164922] ? ip_finish_output2+0x22b/0xa00 [ 50.169330] asm_call_on_stack+0x12/0x20 [ 50.173366] [ 50.175577] do_softirq_own_stack+0x81/0x90 [ 50.179872] do_softirq.part.20+0x8a/0xa0 [ 50.183989] __local_bh_enable_ip+0xf6/0x100 [ 50.188369] ip_finish_output2+0x24f/0xa00 [ 50.192578] __ip_finish_output+0x11e/0x310 [ 50.196868] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 50.202171] ? __ip_finish_output+0x11e/0x310 [ 50.206635] ? ip_output+0x184/0x250 [ 50.210320] ip_finish_output+0x27/0xa0 [ 50.214411] ip_output+0x79/0x250 [ 50.217883] ? __ip_finish_output+0x310/0x310 [ 50.222348] ip_local_out+0x3a/0x60 [ 50.225946] __ip_queue_xmit+0x1e4/0x5e0 [ 50.229982] ip_queue_xmit+0x10/0x20 [ 50.233666] dccp_transmit_skb+0x268/0x420 [ 50.237872] dccp_xmit_packet+0x70/0x170 [ 50.241904] dccp_write_xmit+0x8d/0xb0 [ 50.245770] dccp_sendmsg+0x225/0x3c0 [ 50.249558] inet_sendmsg+0x5f/0x70 [ 50.253155] sock_sendmsg+0x57/0x60 [ 50.256756] ____sys_sendmsg+0x1fc/0x270 [ 50.260896] ? copy_msghdr_from_user+0x5b/0x90 [ 50.265449] ? __lock_acquire+0x4f4/0x1700 [ 50.269663] ___sys_sendmsg+0x77/0xb0 [ 50.273435] ? lock_acquire+0xc9/0x3a0 [ 50.277303] ? find_held_lock+0x35/0xa0 [ 50.281248] ? __fget_files+0xe0/0x1d0 [ 50.285110] ? __fget_files+0xfa/0x1d0 [ 50.288972] __sys_sendmsg+0x5d/0xb0 [ 50.292661] __x64_sys_sendmsg+0x1a/0x20 [ 50.296693] do_syscall_64+0x6e/0xf0 [ 50.300392] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.305564] RIP: 0033:0x453009 [ 50.308742] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.327719] RSP: 002b:00007fb3fb170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.335407] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.342647] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.349886] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.357126] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.364466] R13: 00000000ffffffff R14: 00007fb3fb1716d4 R15: 0000000000000002 [ 50.553784] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 50.567026] CPU: 1 PID: 4650 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 50.574814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.584159] Call Trace: [ 50.586740] [ 50.588875] dump_stack+0xb9/0xf1 [ 50.592318] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 50.597589] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 50.602250] dccp_deliver_input_to_ccids+0x31/0x70 [ 50.607178] dccp_rcv_established+0x49/0x70 [ 50.611751] dccp_v4_do_rcv+0x3b/0x60 [ 50.615540] __sk_receive_skb+0xcc/0x2b0 [ 50.619596] dccp_v4_rcv+0x44b/0x81a [ 50.623321] ip_protocol_deliver_rcu+0x224/0x270 [ 50.628075] ip_local_deliver_finish+0x8d/0x120 [ 50.632743] ip_local_deliver+0x17f/0x220 [ 50.636885] ? ip_protocol_deliver_rcu+0x270/0x270 [ 50.641813] ip_rcv_finish+0x3d/0x60 [ 50.645519] ip_rcv+0x15d/0x210 [ 50.648789] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 50.654060] ? process_backlog+0x90/0x280 [ 50.658189] __netif_receive_skb_one_core+0x81/0x90 [ 50.663187] __netif_receive_skb+0x13/0x60 [ 50.667423] process_backlog+0x101/0x280 [ 50.671484] net_rx_action+0x16f/0x460 [ 50.675356] ? mark_held_locks+0x4e/0x80 [ 50.679407] __do_softirq+0xd3/0x473 [ 50.683211] ? ip_finish_output2+0x22b/0xa00 [ 50.687603] asm_call_on_stack+0x12/0x20 [ 50.691635] [ 50.693844] do_softirq_own_stack+0x81/0x90 [ 50.698143] do_softirq.part.20+0x8a/0xa0 [ 50.702259] __local_bh_enable_ip+0xf6/0x100 [ 50.706636] ip_finish_output2+0x24f/0xa00 [ 50.710842] __ip_finish_output+0x11e/0x310 [ 50.715237] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 50.720483] ? __ip_finish_output+0x11e/0x310 [ 50.724949] ? ip_output+0x184/0x250 [ 50.728639] ip_finish_output+0x27/0xa0 [ 50.732585] ip_output+0x79/0x250 [ 50.736015] ? __ip_finish_output+0x310/0x310 [ 50.740490] ip_local_out+0x3a/0x60 [ 50.744210] __ip_queue_xmit+0x1e4/0x5e0 [ 50.748246] ip_queue_xmit+0x10/0x20 [ 50.751929] dccp_transmit_skb+0x268/0x420 [ 50.756135] dccp_xmit_packet+0x70/0x170 [ 50.760166] dccp_write_xmit+0x8d/0xb0 [ 50.764040] dccp_sendmsg+0x225/0x3c0 [ 50.767822] inet_sendmsg+0x5f/0x70 [ 50.771421] sock_sendmsg+0x57/0x60 [ 50.775019] ____sys_sendmsg+0x1fc/0x270 [ 50.779050] ? copy_msghdr_from_user+0x5b/0x90 [ 50.783604] ? __lock_acquire+0x4f4/0x1700 [ 50.787809] ___sys_sendmsg+0x77/0xb0 [ 50.791582] ? lock_acquire+0xc9/0x3a0 [ 50.795543] ? find_held_lock+0x35/0xa0 [ 50.799490] ? __fget_files+0xe0/0x1d0 [ 50.803363] ? __fget_files+0xfa/0x1d0 [ 50.807227] __sys_sendmsg+0x5d/0xb0 [ 50.811003] __x64_sys_sendmsg+0x1a/0x20 [ 50.815046] do_syscall_64+0x6e/0xf0 [ 50.818736] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.823906] RIP: 0033:0x453009 [ 50.827073] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.845952] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.853677] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.860920] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.868196] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.875439] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.882681] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 51.651035] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 51.664258] CPU: 0 PID: 5190 Comm: syz-executor Not tainted 5.8.0-rc6-syzkaller #0 [ 51.672172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.681521] Call Trace: [ 51.684177] [ 51.686314] dump_stack+0xb9/0xf1 [ 51.689756] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 51.694941] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 51.699613] dccp_deliver_input_to_ccids+0x31/0x70 [ 51.709310] dccp_rcv_established+0x49/0x70 [ 51.713723] dccp_v4_do_rcv+0x3b/0x60 [ 51.717627] __sk_receive_skb+0xcc/0x2b0 [ 51.721690] dccp_v4_rcv+0x44b/0x81a [ 51.725413] ip_protocol_deliver_rcu+0x224/0x270 [ 51.730176] ip_local_deliver_finish+0x8d/0x120 [ 51.734837] ip_local_deliver+0x17f/0x220 [ 51.738973] ? ip_protocol_deliver_rcu+0x270/0x270 [ 51.743889] ip_rcv_finish+0x3d/0x60 [ 51.747592] ip_rcv+0x15d/0x210 [ 51.750155] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 51.750856] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 51.750863] ? process_backlog+0x90/0x280 [ 51.750867] __netif_receive_skb_one_core+0x81/0x90 [ 51.750872] __netif_receive_skb+0x13/0x60 [ 51.782702] process_backlog+0x101/0x280 [ 51.786737] net_rx_action+0x16f/0x460 [ 51.790597] ? mark_held_locks+0x4e/0x80 [ 51.794638] __do_softirq+0xd3/0x473 [ 51.798327] ? ip_finish_output2+0x22b/0xa00 [ 51.802709] asm_call_on_stack+0x12/0x20 [ 51.806738] [ 51.808948] do_softirq_own_stack+0x81/0x90 [ 51.813243] do_softirq.part.20+0x8a/0xa0 [ 51.817363] __local_bh_enable_ip+0xf6/0x100 [ 51.821744] ip_finish_output2+0x24f/0xa00 [ 51.825953] __ip_finish_output+0x11e/0x310 [ 51.830245] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 51.835489] ? __ip_finish_output+0x11e/0x310 [ 51.839955] ? ip_output+0x184/0x250 [ 51.843778] ip_finish_output+0x27/0xa0 [ 51.847848] ip_output+0x79/0x250 [ 51.851279] ? __ip_finish_output+0x310/0x310 [ 51.855750] ip_local_out+0x3a/0x60 [ 51.859368] __ip_queue_xmit+0x1e4/0x5e0 [ 51.863405] ip_queue_xmit+0x10/0x20 [ 51.867178] dccp_transmit_skb+0x268/0x420 [ 51.871385] dccp_xmit_packet+0x70/0x170 [ 51.875422] dccp_write_xmit+0x8d/0xb0 [ 51.879284] dccp_sendmsg+0x225/0x3c0 [ 51.883060] inet_sendmsg+0x5f/0x70 [ 51.886662] sock_sendmsg+0x57/0x60 [ 51.890262] ____sys_sendmsg+0x1fc/0x270 [ 51.894293] ? copy_msghdr_from_user+0x5b/0x90 [ 51.898848] ? __lock_acquire+0x4f4/0x1700 [ 51.903057] ___sys_sendmsg+0x77/0xb0 [ 51.906834] ? lock_acquire+0xc9/0x3a0 [ 51.910693] ? find_held_lock+0x35/0xa0 [ 51.914641] ? __fget_files+0xe0/0x1d0 [ 51.918591] ? __fget_files+0xfa/0x1d0 [ 51.922543] __sys_sendmsg+0x5d/0xb0 [ 51.926342] __x64_sys_sendmsg+0x1a/0x20 [ 51.930373] do_syscall_64+0x6e/0xf0 [ 51.934060] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.939232] RIP: 0033:0x453009 [ 51.942397] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.961380] RSP: 002b:00007f6573559c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 51.969153] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 51.976395] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.983635] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 51.990876] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.998127] R13: 00000000ffffffff R14: 00007f657355a6d4 R15: 0000000000000002 [ 52.005391] CPU: 1 PID: 5224 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 52.013185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.022542] Call Trace: [ 52.025120] [ 52.027263] dump_stack+0xb9/0xf1 [ 52.030705] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 52.035887] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 52.040563] dccp_deliver_input_to_ccids+0x31/0x70 [ 52.045581] dccp_rcv_established+0x49/0x70 [ 52.049892] dccp_v4_do_rcv+0x3b/0x60 [ 52.053680] __sk_receive_skb+0xcc/0x2b0 [ 52.057745] dccp_v4_rcv+0x44b/0x81a [ 52.061456] ip_protocol_deliver_rcu+0x224/0x270 [ 52.066208] ip_local_deliver_finish+0x8d/0x120 [ 52.070868] ip_local_deliver+0x17f/0x220 [ 52.075008] ? ip_protocol_deliver_rcu+0x270/0x270 [ 52.079933] ip_rcv_finish+0x3d/0x60 [ 52.083636] ip_rcv+0x15d/0x210 [ 52.086911] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 52.092096] ? process_backlog+0x90/0x280 [ 52.096256] __netif_receive_skb_one_core+0x81/0x90 [ 52.101267] __netif_receive_skb+0x13/0x60 [ 52.105497] process_backlog+0x101/0x280 [ 52.109564] net_rx_action+0x16f/0x460 [ 52.113528] ? mark_held_locks+0x4e/0x80 [ 52.117597] __do_softirq+0xd3/0x473 [ 52.121304] ? ip_finish_output2+0x22b/0xa00 [ 52.125686] asm_call_on_stack+0x12/0x20 [ 52.129723] [ 52.131943] do_softirq_own_stack+0x81/0x90 [ 52.136237] do_softirq.part.20+0x8a/0xa0 [ 52.140356] __local_bh_enable_ip+0xf6/0x100 [ 52.144781] ip_finish_output2+0x24f/0xa00 [ 52.149026] __ip_finish_output+0x11e/0x310 [ 52.153322] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 52.158568] ? __ip_finish_output+0x11e/0x310 [ 52.163033] ? ip_output+0x184/0x250 [ 52.166722] ip_finish_output+0x27/0xa0 [ 52.170666] ip_output+0x79/0x250 [ 52.174090] ? __ip_finish_output+0x310/0x310 [ 52.178555] ip_local_out+0x3a/0x60 [ 52.182156] __ip_queue_xmit+0x1e4/0x5e0 [ 52.186319] ip_queue_xmit+0x10/0x20 [ 52.190007] dccp_transmit_skb+0x268/0x420 [ 52.194227] dccp_xmit_packet+0x70/0x170 [ 52.198259] dccp_write_xmit+0x8d/0xb0 [ 52.202483] dccp_sendmsg+0x225/0x3c0 [ 52.206257] inet_sendmsg+0x5f/0x70 [ 52.209856] sock_sendmsg+0x57/0x60 [ 52.213455] ____sys_sendmsg+0x1fc/0x270 [ 52.217486] ? copy_msghdr_from_user+0x5b/0x90 [ 52.222090] ? __lock_acquire+0x4f4/0x1700 [ 52.226298] ___sys_sendmsg+0x77/0xb0 [ 52.230070] ? lock_acquire+0xc9/0x3a0 [ 52.233929] ? find_held_lock+0x35/0xa0 [ 52.237912] ? __fget_files+0xe0/0x1d0 [ 52.241784] ? __fget_files+0xfa/0x1d0 [ 52.245653] __sys_sendmsg+0x5d/0xb0 [ 52.249345] __x64_sys_sendmsg+0x1a/0x20 [ 52.253405] do_syscall_64+0x6e/0xf0 [ 52.257126] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.262285] RIP: 0033:0x453009 [ 52.265449] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.284376] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 52.292051] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 52.299292] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 52.306557] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 52.313799] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 52.321053] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 52.513019] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 52.526286] CPU: 0 PID: 5383 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 52.534062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.543431] Call Trace: [ 52.545999] [ 52.548136] dump_stack+0xb9/0xf1 [ 52.551585] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 52.558323] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 52.562986] dccp_deliver_input_to_ccids+0x31/0x70 [ 52.567902] dccp_rcv_established+0x49/0x70 [ 52.572206] dccp_v4_do_rcv+0x3b/0x60 [ 52.575984] __sk_receive_skb+0xcc/0x2b0 [ 52.580032] dccp_v4_rcv+0x44b/0x81a [ 52.583734] ip_protocol_deliver_rcu+0x224/0x270 [ 52.588480] ip_local_deliver_finish+0x8d/0x120 [ 52.593150] ip_local_deliver+0x17f/0x220 [ 52.597297] ? ip_protocol_deliver_rcu+0x270/0x270 [ 52.602220] ip_rcv_finish+0x3d/0x60 [ 52.606083] ip_rcv+0x15d/0x210 [ 52.609440] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 52.614633] ? process_backlog+0x90/0x280 [ 52.618775] __netif_receive_skb_one_core+0x81/0x90 [ 52.623783] __netif_receive_skb+0x13/0x60 [ 52.628016] process_backlog+0x101/0x280 [ 52.632074] net_rx_action+0x16f/0x460 [ 52.635952] ? mark_held_locks+0x4e/0x80 [ 52.640010] __do_softirq+0xd3/0x473 [ 52.643713] ? ip_finish_output2+0x22b/0xa00 [ 52.648164] asm_call_on_stack+0x12/0x20 [ 52.652212] [ 52.654453] do_softirq_own_stack+0x81/0x90 [ 52.658770] do_softirq.part.20+0x8a/0xa0 [ 52.662915] __local_bh_enable_ip+0xf6/0x100 [ 52.667314] ip_finish_output2+0x24f/0xa00 [ 52.671541] __ip_finish_output+0x11e/0x310 [ 52.675847] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 52.681098] ? __ip_finish_output+0x11e/0x310 [ 52.685565] ? ip_output+0x184/0x250 [ 52.689260] ip_finish_output+0x27/0xa0 [ 52.693219] ip_output+0x79/0x250 [ 52.696654] ? __ip_finish_output+0x310/0x310 [ 52.701133] ip_local_out+0x3a/0x60 [ 52.704743] __ip_queue_xmit+0x1e4/0x5e0 [ 52.708783] ip_queue_xmit+0x10/0x20 [ 52.712472] dccp_transmit_skb+0x268/0x420 [ 52.716683] dccp_xmit_packet+0x70/0x170 [ 52.720717] dccp_write_xmit+0x8d/0xb0 [ 52.724576] dccp_sendmsg+0x225/0x3c0 [ 52.728380] inet_sendmsg+0x5f/0x70 [ 52.731980] sock_sendmsg+0x57/0x60 [ 52.735579] ____sys_sendmsg+0x1fc/0x270 [ 52.739616] ? copy_msghdr_from_user+0x5b/0x90 [ 52.744187] ? __lock_acquire+0x4f4/0x1700 [ 52.748406] ___sys_sendmsg+0x77/0xb0 [ 52.752184] ? lock_acquire+0xc9/0x3a0 [ 52.756044] ? find_held_lock+0x35/0xa0 [ 52.759999] ? __fget_files+0xe0/0x1d0 [ 52.763876] ? __fget_files+0xfa/0x1d0 [ 52.767746] __sys_sendmsg+0x5d/0xb0 [ 52.771461] __x64_sys_sendmsg+0x1a/0x20 [ 52.775493] do_syscall_64+0x6e/0xf0 [ 52.779196] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.784484] RIP: 0033:0x453009 [ 52.787654] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.806530] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e 2020/07/26 15:20:09 executed programs: 356 [ 52.814208] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 52.821511] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 52.828765] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 52.836008] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 52.843250] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 52.940203] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 52.953462] CPU: 1 PID: 5486 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 52.961337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.970772] Call Trace: [ 52.973333] [ 52.975474] dump_stack+0xb9/0xf1 [ 52.978920] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 52.984111] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 52.988778] dccp_deliver_input_to_ccids+0x31/0x70 [ 52.993705] dccp_rcv_established+0x49/0x70 [ 52.998028] dccp_v4_do_rcv+0x3b/0x60 [ 53.001803] __sk_receive_skb+0xcc/0x2b0 [ 53.005859] dccp_v4_rcv+0x44b/0x81a [ 53.009566] ip_protocol_deliver_rcu+0x224/0x270 [ 53.014313] ip_local_deliver_finish+0x8d/0x120 [ 53.018973] ip_local_deliver+0x17f/0x220 [ 53.023116] ? ip_protocol_deliver_rcu+0x270/0x270 [ 53.028046] ip_rcv_finish+0x3d/0x60 [ 53.031748] ip_rcv+0x15d/0x210 [ 53.035016] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 53.040201] ? process_backlog+0x90/0x280 [ 53.044343] __netif_receive_skb_one_core+0x81/0x90 [ 53.049357] __netif_receive_skb+0x13/0x60 [ 53.053585] process_backlog+0x101/0x280 [ 53.057646] net_rx_action+0x16f/0x460 [ 53.061532] ? mark_held_locks+0x4e/0x80 [ 53.065595] __do_softirq+0xd3/0x473 [ 53.069306] ? ip_finish_output2+0x22b/0xa00 [ 53.073706] asm_call_on_stack+0x12/0x20 [ 53.077748] [ 53.079959] do_softirq_own_stack+0x81/0x90 [ 53.084265] do_softirq.part.20+0x8a/0xa0 [ 53.088398] __local_bh_enable_ip+0xf6/0x100 [ 53.092779] ip_finish_output2+0x24f/0xa00 [ 53.096998] __ip_finish_output+0x11e/0x310 [ 53.101293] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 53.106539] ? __ip_finish_output+0x11e/0x310 [ 53.111051] ? ip_output+0x184/0x250 [ 53.114739] ip_finish_output+0x27/0xa0 [ 53.118690] ip_output+0x79/0x250 [ 53.122206] ? __ip_finish_output+0x310/0x310 [ 53.126809] ip_local_out+0x3a/0x60 [ 53.130406] __ip_queue_xmit+0x1e4/0x5e0 [ 53.134440] ip_queue_xmit+0x10/0x20 [ 53.138125] dccp_transmit_skb+0x268/0x420 [ 53.142367] dccp_xmit_packet+0x70/0x170 [ 53.146400] dccp_write_xmit+0x8d/0xb0 [ 53.150393] dccp_sendmsg+0x225/0x3c0 [ 53.154168] inet_sendmsg+0x5f/0x70 [ 53.157818] sock_sendmsg+0x57/0x60 [ 53.161451] ____sys_sendmsg+0x1fc/0x270 [ 53.165479] ? copy_msghdr_from_user+0x5b/0x90 [ 53.170031] ? __lock_acquire+0x4f4/0x1700 [ 53.174239] ___sys_sendmsg+0x77/0xb0 [ 53.178010] ? lock_acquire+0xc9/0x3a0 [ 53.181864] ? find_held_lock+0x35/0xa0 [ 53.185809] ? __fget_files+0xe0/0x1d0 [ 53.189670] ? __fget_files+0xfa/0x1d0 [ 53.193545] __sys_sendmsg+0x5d/0xb0 [ 53.197295] __x64_sys_sendmsg+0x1a/0x20 [ 53.201330] do_syscall_64+0x6e/0xf0 [ 53.205014] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.210347] RIP: 0033:0x453009 [ 53.213510] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.232607] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 53.240284] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 53.247652] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.254891] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.262148] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.269389] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 53.346386] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 53.359662] CPU: 0 PID: 5567 Comm: syz-executor5 Not tainted 5.8.0-rc6-syzkaller #0 [ 53.367454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.376802] Call Trace: [ 53.379364] [ 53.381847] dump_stack+0xb9/0xf1 [ 53.385290] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 53.390488] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 53.395478] dccp_deliver_input_to_ccids+0x31/0x70 [ 53.400382] dccp_rcv_established+0x49/0x70 [ 53.404687] dccp_v4_do_rcv+0x3b/0x60 [ 53.408478] __sk_receive_skb+0xcc/0x2b0 [ 53.412538] dccp_v4_rcv+0x44b/0x81a [ 53.416259] ip_protocol_deliver_rcu+0x224/0x270 [ 53.421010] ip_local_deliver_finish+0x8d/0x120 [ 53.425680] ip_local_deliver+0x17f/0x220 [ 53.429823] ? ip_protocol_deliver_rcu+0x270/0x270 [ 53.434748] ip_rcv_finish+0x3d/0x60 [ 53.438463] ip_rcv+0x15d/0x210 [ 53.441727] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 53.446910] ? process_backlog+0x90/0x280 [ 53.451048] __netif_receive_skb_one_core+0x81/0x90 [ 53.456052] __netif_receive_skb+0x13/0x60 [ 53.460275] process_backlog+0x101/0x280 [ 53.464334] net_rx_action+0x16f/0x460 [ 53.468213] ? mark_held_locks+0x4e/0x80 [ 53.472256] __do_softirq+0xd3/0x473 [ 53.475957] ? ip_finish_output2+0x22b/0xa00 [ 53.480349] asm_call_on_stack+0x12/0x20 [ 53.484384] [ 53.486593] do_softirq_own_stack+0x81/0x90 [ 53.490884] do_softirq.part.20+0x8a/0xa0 [ 53.495001] __local_bh_enable_ip+0xf6/0x100 [ 53.499379] ip_finish_output2+0x24f/0xa00 [ 53.503589] __ip_finish_output+0x11e/0x310 [ 53.507880] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 53.513123] ? __ip_finish_output+0x11e/0x310 [ 53.517588] ? ip_output+0x184/0x250 [ 53.521274] ip_finish_output+0x27/0xa0 [ 53.525219] ip_output+0x79/0x250 [ 53.528646] ? __ip_finish_output+0x310/0x310 [ 53.533159] ip_local_out+0x3a/0x60 [ 53.536757] __ip_queue_xmit+0x1e4/0x5e0 [ 53.540837] ip_queue_xmit+0x10/0x20 [ 53.544577] dccp_transmit_skb+0x268/0x420 [ 53.548783] dccp_xmit_packet+0x70/0x170 [ 53.552815] dccp_write_xmit+0x8d/0xb0 [ 53.556678] dccp_sendmsg+0x225/0x3c0 [ 53.560457] inet_sendmsg+0x5f/0x70 [ 53.564054] sock_sendmsg+0x57/0x60 [ 53.567651] ____sys_sendmsg+0x1fc/0x270 [ 53.571686] ? copy_msghdr_from_user+0x5b/0x90 [ 53.576240] ? __lock_acquire+0x4f4/0x1700 [ 53.580450] ___sys_sendmsg+0x77/0xb0 [ 53.584222] ? lock_acquire+0xc9/0x3a0 [ 53.588259] ? find_held_lock+0x35/0xa0 [ 53.592261] ? __fget_files+0xe0/0x1d0 [ 53.596220] ? __fget_files+0xfa/0x1d0 [ 53.600091] __sys_sendmsg+0x5d/0xb0 [ 53.603782] __x64_sys_sendmsg+0x1a/0x20 [ 53.607815] do_syscall_64+0x6e/0xf0 [ 53.611498] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.616691] RIP: 0033:0x453009 [ 53.619858] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.638766] RSP: 002b:00007fb3fb170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 53.646450] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 53.653732] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.661013] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.668268] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.675524] R13: 00000000ffffffff R14: 00007fb3fb1716d4 R15: 0000000000000002 [ 53.688722] net_ratelimit: 389 callbacks suppressed [ 53.688724] dccp_close: ABORT with 24 bytes unread [ 53.727597] dccp_close: ABORT with 24 bytes unread [ 53.734915] dccp_close: ABORT with 24 bytes unread [ 53.740040] dccp_close: ABORT with 24 bytes unread [ 53.744839] dccp_close: ABORT with 24 bytes unread [ 53.751484] dccp_close: ABORT with 24 bytes unread [ 53.756605] dccp_close: ABORT with 24 bytes unread [ 53.781503] dccp_close: ABORT with 24 bytes unread [ 53.781625] dccp_close: ABORT with 24 bytes unread [ 53.793116] dccp_close: ABORT with 24 bytes unread [ 53.937281] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 53.950558] CPU: 0 PID: 5741 Comm: syz-executor3 Not tainted 5.8.0-rc6-syzkaller #0 [ 53.958393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.967826] Call Trace: [ 53.970480] [ 53.972620] dump_stack+0xb9/0xf1 [ 53.976076] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 53.981271] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 53.985950] dccp_deliver_input_to_ccids+0x31/0x70 [ 53.991594] dccp_rcv_established+0x49/0x70 [ 53.995912] dccp_v4_do_rcv+0x3b/0x60 [ 53.999706] __sk_receive_skb+0xcc/0x2b0 [ 54.003760] dccp_v4_rcv+0x44b/0x81a [ 54.007488] ip_protocol_deliver_rcu+0x224/0x270 [ 54.012251] ip_local_deliver_finish+0x8d/0x120 [ 54.016921] ip_local_deliver+0x17f/0x220 [ 54.021056] ? ip_protocol_deliver_rcu+0x270/0x270 [ 54.026073] ip_rcv_finish+0x3d/0x60 [ 54.029758] ip_rcv+0x15d/0x210 [ 54.033012] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 54.038228] ? process_backlog+0x90/0x280 [ 54.042357] __netif_receive_skb_one_core+0x81/0x90 [ 54.047356] __netif_receive_skb+0x13/0x60 [ 54.051570] process_backlog+0x101/0x280 [ 54.055640] net_rx_action+0x16f/0x460 [ 54.060478] ? mark_held_locks+0x4e/0x80 [ 54.064547] __do_softirq+0xd3/0x473 [ 54.068262] ? ip_finish_output2+0x22b/0xa00 [ 54.072674] asm_call_on_stack+0x12/0x20 [ 54.076713] [ 54.078935] do_softirq_own_stack+0x81/0x90 [ 54.083255] do_softirq.part.20+0x8a/0xa0 [ 54.087395] __local_bh_enable_ip+0xf6/0x100 [ 54.091786] ip_finish_output2+0x24f/0xa00 [ 54.096007] __ip_finish_output+0x11e/0x310 [ 54.100389] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 54.105769] ? __ip_finish_output+0x11e/0x310 [ 54.110246] ? ip_output+0x184/0x250 [ 54.113930] ip_finish_output+0x27/0xa0 [ 54.117875] ip_output+0x79/0x250 [ 54.121299] ? __ip_finish_output+0x310/0x310 [ 54.125767] ip_local_out+0x3a/0x60 [ 54.129367] __ip_queue_xmit+0x1e4/0x5e0 [ 54.133406] ip_queue_xmit+0x10/0x20 [ 54.137094] dccp_transmit_skb+0x268/0x420 [ 54.141300] dccp_xmit_packet+0x70/0x170 [ 54.145338] dccp_write_xmit+0x8d/0xb0 [ 54.149196] dccp_sendmsg+0x225/0x3c0 [ 54.152970] inet_sendmsg+0x5f/0x70 [ 54.156568] sock_sendmsg+0x57/0x60 [ 54.160165] ____sys_sendmsg+0x1fc/0x270 [ 54.164193] ? copy_msghdr_from_user+0x5b/0x90 [ 54.168746] ? __lock_acquire+0x4f4/0x1700 [ 54.172952] ___sys_sendmsg+0x77/0xb0 [ 54.176728] ? lock_acquire+0xc9/0x3a0 [ 54.180586] ? find_held_lock+0x35/0xa0 [ 54.184530] ? __fget_files+0xe0/0x1d0 [ 54.188391] ? __fget_files+0xfa/0x1d0 [ 54.192271] __sys_sendmsg+0x5d/0xb0 [ 54.195959] __x64_sys_sendmsg+0x1a/0x20 [ 54.200077] do_syscall_64+0x6e/0xf0 [ 54.204024] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.209185] RIP: 0033:0x453009 [ 54.212348] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.231326] RSP: 002b:00007fe47a6f0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 54.239002] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 54.246243] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 54.253482] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 54.260722] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 54.268051] R13: 00000000ffffffff R14: 00007fe47a6f16d4 R15: 0000000000000002 [ 54.412465] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 54.425734] CPU: 1 PID: 5870 Comm: syz-executor2 Not tainted 5.8.0-rc6-syzkaller #0 [ 54.433617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.442959] Call Trace: [ 54.445537] [ 54.447687] dump_stack+0xb9/0xf1 [ 54.451126] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 54.456226] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 54.456297] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 54.456305] dccp_deliver_input_to_ccids+0x31/0x70 [ 54.478995] dccp_rcv_established+0x49/0x70 [ 54.483289] dccp_v4_do_rcv+0x3b/0x60 [ 54.487061] __sk_receive_skb+0xcc/0x2b0 [ 54.491096] dccp_v4_rcv+0x44b/0x81a [ 54.494789] ip_protocol_deliver_rcu+0x224/0x270 [ 54.499516] ip_local_deliver_finish+0x8d/0x120 [ 54.504155] ip_local_deliver+0x17f/0x220 [ 54.508275] ? ip_protocol_deliver_rcu+0x270/0x270 [ 54.513178] ip_rcv_finish+0x3d/0x60 [ 54.516863] ip_rcv+0x15d/0x210 [ 54.520117] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 54.525292] ? process_backlog+0x90/0x280 [ 54.529411] __netif_receive_skb_one_core+0x81/0x90 [ 54.534412] __netif_receive_skb+0x13/0x60 [ 54.538618] process_backlog+0x101/0x280 [ 54.542653] net_rx_action+0x16f/0x460 [ 54.546513] ? mark_held_locks+0x4e/0x80 [ 54.550554] __do_softirq+0xd3/0x473 [ 54.554243] ? ip_finish_output2+0x22b/0xa00 [ 54.558624] asm_call_on_stack+0x12/0x20 [ 54.562666] [ 54.564877] do_softirq_own_stack+0x81/0x90 [ 54.569172] do_softirq.part.20+0x8a/0xa0 [ 54.573291] __local_bh_enable_ip+0xf6/0x100 [ 54.577671] ip_finish_output2+0x24f/0xa00 [ 54.581883] __ip_finish_output+0x11e/0x310 [ 54.586176] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 54.591423] ? __ip_finish_output+0x11e/0x310 [ 54.595894] ? ip_output+0x184/0x250 [ 54.599581] ip_finish_output+0x27/0xa0 [ 54.603526] ip_output+0x79/0x250 [ 54.606952] ? __ip_finish_output+0x310/0x310 [ 54.611421] ip_local_out+0x3a/0x60 [ 54.615019] __ip_queue_xmit+0x1e4/0x5e0 [ 54.619055] ip_queue_xmit+0x10/0x20 [ 54.622745] dccp_transmit_skb+0x268/0x420 [ 54.626956] dccp_xmit_packet+0x70/0x170 [ 54.630991] dccp_write_xmit+0x8d/0xb0 [ 54.634849] dccp_sendmsg+0x225/0x3c0 [ 54.638637] inet_sendmsg+0x5f/0x70 [ 54.642324] sock_sendmsg+0x57/0x60 [ 54.645922] ____sys_sendmsg+0x1fc/0x270 [ 54.650056] ? copy_msghdr_from_user+0x5b/0x90 [ 54.654612] ? __lock_acquire+0x4f4/0x1700 [ 54.658831] ___sys_sendmsg+0x77/0xb0 [ 54.662606] ? lock_acquire+0xc9/0x3a0 [ 54.666462] ? find_held_lock+0x35/0xa0 [ 54.670419] ? __fget_files+0xe0/0x1d0 [ 54.674282] ? __fget_files+0xfa/0x1d0 [ 54.678149] __sys_sendmsg+0x5d/0xb0 [ 54.681843] __x64_sys_sendmsg+0x1a/0x20 [ 54.685880] do_syscall_64+0x6e/0xf0 [ 54.689578] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.694737] RIP: 0033:0x453009 [ 54.697911] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.716796] RSP: 002b:00007fa04f022c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 54.724484] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 54.731730] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 54.738973] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 54.746213] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 54.753453] R13: 00000000ffffffff R14: 00007fa04f0236d4 R15: 0000000000000002 [ 54.760711] CPU: 0 PID: 5891 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 54.768508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.777851] Call Trace: [ 54.780406] [ 54.782534] dump_stack+0xb9/0xf1 [ 54.785966] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 54.791140] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 54.795781] dccp_deliver_input_to_ccids+0x31/0x70 [ 54.800788] dccp_rcv_established+0x49/0x70 [ 54.805107] dccp_v4_do_rcv+0x3b/0x60 [ 54.808893] __sk_receive_skb+0xcc/0x2b0 [ 54.812958] dccp_v4_rcv+0x44b/0x81a [ 54.816678] ip_protocol_deliver_rcu+0x224/0x270 [ 54.821441] ip_local_deliver_finish+0x8d/0x120 [ 54.826114] ip_local_deliver+0x17f/0x220 [ 54.830269] ? ip_protocol_deliver_rcu+0x270/0x270 [ 54.835192] ip_rcv_finish+0x3d/0x60 [ 54.838910] ip_rcv+0x15d/0x210 [ 54.842191] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 54.847378] ? process_backlog+0x90/0x280 [ 54.851519] __netif_receive_skb_one_core+0x81/0x90 [ 54.856525] __netif_receive_skb+0x13/0x60 [ 54.860753] process_backlog+0x101/0x280 [ 54.864810] net_rx_action+0x16f/0x460 [ 54.868691] ? mark_held_locks+0x4e/0x80 [ 54.872747] __do_softirq+0xd3/0x473 [ 54.876459] ? ip_finish_output2+0x22b/0xa00 [ 54.880865] asm_call_on_stack+0x12/0x20 [ 54.884919] [ 54.887165] do_softirq_own_stack+0x81/0x90 [ 54.888883] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 54.891475] do_softirq.part.20+0x8a/0xa0 [ 54.891480] __local_bh_enable_ip+0xf6/0x100 [ 54.891486] ip_finish_output2+0x24f/0xa00 [ 54.891497] __ip_finish_output+0x11e/0x310 [ 54.891501] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 54.891503] ? __ip_finish_output+0x11e/0x310 [ 54.891505] ? ip_output+0x184/0x250 [ 54.891511] ip_finish_output+0x27/0xa0 [ 54.891516] ip_output+0x79/0x250 [ 54.945265] ? __ip_finish_output+0x310/0x310 [ 54.949739] ip_local_out+0x3a/0x60 [ 54.953441] __ip_queue_xmit+0x1e4/0x5e0 [ 54.957573] ip_queue_xmit+0x10/0x20 [ 54.961274] dccp_transmit_skb+0x268/0x420 [ 54.965487] dccp_xmit_packet+0x70/0x170 [ 54.969542] dccp_write_xmit+0x8d/0xb0 [ 54.973420] dccp_sendmsg+0x225/0x3c0 [ 54.977203] inet_sendmsg+0x5f/0x70 [ 54.980817] sock_sendmsg+0x57/0x60 [ 54.984416] ____sys_sendmsg+0x1fc/0x270 [ 54.988449] ? copy_msghdr_from_user+0x5b/0x90 [ 54.993007] ? __lock_acquire+0x4f4/0x1700 [ 54.997219] ___sys_sendmsg+0x77/0xb0 [ 55.000995] ? lock_acquire+0xc9/0x3a0 [ 55.004864] ? find_held_lock+0x35/0xa0 [ 55.008838] ? __fget_files+0xe0/0x1d0 [ 55.012708] ? __fget_files+0xfa/0x1d0 [ 55.016699] __sys_sendmsg+0x5d/0xb0 [ 55.020423] __x64_sys_sendmsg+0x1a/0x20 [ 55.024559] do_syscall_64+0x6e/0xf0 [ 55.028957] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.034209] RIP: 0033:0x453009 [ 55.037381] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.056340] RSP: 002b:00007f15ffd5fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.064204] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 55.072492] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.080257] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.087607] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.094853] R13: 00000000ffffffff R14: 00007f15ffd606d4 R15: 0000000000000002 [ 55.102113] CPU: 1 PID: 5929 Comm: syz-executor3 Not tainted 5.8.0-rc6-syzkaller #0 [ 55.109951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.121477] Call Trace: [ 55.124053] [ 55.126288] dump_stack+0xb9/0xf1 [ 55.129913] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 55.135102] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 55.139776] dccp_deliver_input_to_ccids+0x31/0x70 [ 55.144699] dccp_rcv_established+0x49/0x70 [ 55.149026] dccp_v4_do_rcv+0x3b/0x60 [ 55.152872] __sk_receive_skb+0xcc/0x2b0 [ 55.156931] dccp_v4_rcv+0x44b/0x81a [ 55.160645] ip_protocol_deliver_rcu+0x224/0x270 [ 55.165505] ip_local_deliver_finish+0x8d/0x120 [ 55.170257] ip_local_deliver+0x17f/0x220 [ 55.174399] ? ip_protocol_deliver_rcu+0x270/0x270 [ 55.179429] ip_rcv_finish+0x3d/0x60 [ 55.183146] ip_rcv+0x15d/0x210 [ 55.186427] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 55.191712] ? process_backlog+0x90/0x280 [ 55.195900] __netif_receive_skb_one_core+0x81/0x90 [ 55.196028] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 55.201061] __netif_receive_skb+0x13/0x60 [ 55.201067] process_backlog+0x101/0x280 [ 55.201074] net_rx_action+0x16f/0x460 [ 55.201080] ? mark_held_locks+0x4e/0x80 [ 55.201094] __do_softirq+0xd3/0x473 [ 55.201102] ? ip_finish_output2+0x22b/0xa00 [ 55.201107] asm_call_on_stack+0x12/0x20 [ 55.201109] [ 55.201115] do_softirq_own_stack+0x81/0x90 [ 55.201121] do_softirq.part.20+0x8a/0xa0 [ 55.201125] __local_bh_enable_ip+0xf6/0x100 [ 55.201129] ip_finish_output2+0x24f/0xa00 [ 55.201141] __ip_finish_output+0x11e/0x310 [ 55.201148] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 55.272509] ? __ip_finish_output+0x11e/0x310 [ 55.276978] ? ip_output+0x184/0x250 [ 55.280669] ip_finish_output+0x27/0xa0 [ 55.284637] ip_output+0x79/0x250 [ 55.288066] ? __ip_finish_output+0x310/0x310 [ 55.292536] ip_local_out+0x3a/0x60 [ 55.296135] __ip_queue_xmit+0x1e4/0x5e0 [ 55.300188] ip_queue_xmit+0x10/0x20 [ 55.303878] dccp_transmit_skb+0x268/0x420 [ 55.308086] dccp_xmit_packet+0x70/0x170 [ 55.312120] dccp_write_xmit+0x8d/0xb0 [ 55.315981] dccp_sendmsg+0x225/0x3c0 [ 55.319760] inet_sendmsg+0x5f/0x70 [ 55.323395] sock_sendmsg+0x57/0x60 [ 55.326996] ____sys_sendmsg+0x1fc/0x270 [ 55.331027] ? copy_msghdr_from_user+0x5b/0x90 [ 55.335586] ? __lock_acquire+0x4f4/0x1700 [ 55.339797] ___sys_sendmsg+0x77/0xb0 [ 55.343574] ? lock_acquire+0xc9/0x3a0 [ 55.347447] ? find_held_lock+0x35/0xa0 [ 55.351395] ? __fget_files+0xe0/0x1d0 [ 55.355260] ? __fget_files+0xfa/0x1d0 [ 55.359126] __sys_sendmsg+0x5d/0xb0 [ 55.362823] __x64_sys_sendmsg+0x1a/0x20 [ 55.366863] do_syscall_64+0x6e/0xf0 [ 55.370552] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.375735] RIP: 0033:0x453009 [ 55.379005] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.397882] RSP: 002b:00007fe47a6f0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.405562] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 55.412807] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.420049] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.427294] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.434537] R13: 00000000ffffffff R14: 00007fe47a6f16d4 R15: 0000000000000002 [ 55.441794] CPU: 0 PID: 5952 Comm: syz-executor Not tainted 5.8.0-rc6-syzkaller #0 [ 55.449537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.458886] Call Trace: [ 55.461464] [ 55.463613] dump_stack+0xb9/0xf1 [ 55.467073] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 55.472279] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 55.476953] dccp_deliver_input_to_ccids+0x31/0x70 [ 55.481875] dccp_rcv_established+0x49/0x70 [ 55.486199] dccp_v4_do_rcv+0x3b/0x60 [ 55.490006] __sk_receive_skb+0xcc/0x2b0 [ 55.494069] dccp_v4_rcv+0x44b/0x81a [ 55.497791] ip_protocol_deliver_rcu+0x224/0x270 [ 55.502548] ip_local_deliver_finish+0x8d/0x120 [ 55.507233] ip_local_deliver+0x17f/0x220 [ 55.511384] ? ip_protocol_deliver_rcu+0x270/0x270 [ 55.516325] ip_rcv_finish+0x3d/0x60 [ 55.520048] ip_rcv+0x15d/0x210 [ 55.523324] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 55.528510] ? process_backlog+0x90/0x280 [ 55.532667] __netif_receive_skb_one_core+0x81/0x90 [ 55.537693] __netif_receive_skb+0x13/0x60 [ 55.541925] process_backlog+0x101/0x280 [ 55.545999] net_rx_action+0x16f/0x460 [ 55.549888] ? mark_held_locks+0x4e/0x80 [ 55.553962] __do_softirq+0xd3/0x473 [ 55.557677] ? ip_finish_output2+0x22b/0xa00 [ 55.562093] asm_call_on_stack+0x12/0x20 [ 55.566155] [ 55.568389] do_softirq_own_stack+0x81/0x90 [ 55.572714] do_softirq.part.20+0x8a/0xa0 [ 55.576874] __local_bh_enable_ip+0xf6/0x100 [ 55.581257] ip_finish_output2+0x24f/0xa00 [ 55.585477] __ip_finish_output+0x11e/0x310 [ 55.589778] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 55.595025] ? __ip_finish_output+0x11e/0x310 [ 55.599493] ? ip_output+0x184/0x250 [ 55.603182] ip_finish_output+0x27/0xa0 [ 55.607128] ip_output+0x79/0x250 [ 55.610559] ? __ip_finish_output+0x310/0x310 [ 55.615035] ip_local_out+0x3a/0x60 [ 55.618634] __ip_queue_xmit+0x1e4/0x5e0 [ 55.622694] ip_queue_xmit+0x10/0x20 [ 55.626443] dccp_transmit_skb+0x268/0x420 [ 55.630654] dccp_xmit_packet+0x70/0x170 [ 55.634696] dccp_write_xmit+0x8d/0xb0 [ 55.638561] dccp_sendmsg+0x225/0x3c0 [ 55.642339] inet_sendmsg+0x5f/0x70 [ 55.645940] sock_sendmsg+0x57/0x60 [ 55.649560] ____sys_sendmsg+0x1fc/0x270 [ 55.653608] ? copy_msghdr_from_user+0x5b/0x90 [ 55.658165] ? __lock_acquire+0x4f4/0x1700 [ 55.662406] ___sys_sendmsg+0x77/0xb0 [ 55.666180] ? lock_acquire+0xc9/0x3a0 [ 55.670039] ? find_held_lock+0x35/0xa0 [ 55.673985] ? __fget_files+0xe0/0x1d0 [ 55.677847] ? __fget_files+0xfa/0x1d0 [ 55.681877] __sys_sendmsg+0x5d/0xb0 [ 55.685583] __x64_sys_sendmsg+0x1a/0x20 [ 55.690012] do_syscall_64+0x6e/0xf0 [ 55.693766] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.699050] RIP: 0033:0x453009 [ 55.702227] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.721378] RSP: 002b:00007f6573559c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.729077] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 55.736319] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.743565] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.750806] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.758049] R13: 00000000ffffffff R14: 00007f657355a6d4 R15: 0000000000000002 [ 56.051081] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 56.064460] CPU: 0 PID: 6176 Comm: syz-executor1 Not tainted 5.8.0-rc6-syzkaller #0 [ 56.072241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.081579] Call Trace: [ 56.084277] [ 56.086406] dump_stack+0xb9/0xf1 [ 56.089840] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 56.095025] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 56.099691] dccp_deliver_input_to_ccids+0x31/0x70 [ 56.104604] dccp_rcv_established+0x49/0x70 [ 56.108916] dccp_v4_do_rcv+0x3b/0x60 [ 56.112716] __sk_receive_skb+0xcc/0x2b0 [ 56.116776] dccp_v4_rcv+0x44b/0x81a [ 56.120483] ip_protocol_deliver_rcu+0x224/0x270 [ 56.125319] ip_local_deliver_finish+0x8d/0x120 [ 56.129979] ip_local_deliver+0x17f/0x220 [ 56.134121] ? ip_protocol_deliver_rcu+0x270/0x270 [ 56.139052] ip_rcv_finish+0x3d/0x60 [ 56.142754] ip_rcv+0x15d/0x210 [ 56.146018] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 56.151203] ? process_backlog+0x90/0x280 [ 56.155341] __netif_receive_skb_one_core+0x81/0x90 [ 56.160349] __netif_receive_skb+0x13/0x60 [ 56.164579] process_backlog+0x101/0x280 [ 56.168638] net_rx_action+0x16f/0x460 [ 56.172511] ? mark_held_locks+0x4e/0x80 [ 56.176564] __do_softirq+0xd3/0x473 [ 56.180267] ? ip_finish_output2+0x22b/0xa00 [ 56.184651] asm_call_on_stack+0x12/0x20 [ 56.188682] [ 56.190889] do_softirq_own_stack+0x81/0x90 [ 56.195244] do_softirq.part.20+0x8a/0xa0 [ 56.199369] __local_bh_enable_ip+0xf6/0x100 [ 56.203751] ip_finish_output2+0x24f/0xa00 [ 56.207955] __ip_finish_output+0x11e/0x310 [ 56.212246] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 56.217553] ? __ip_finish_output+0x11e/0x310 [ 56.222017] ? ip_output+0x184/0x250 [ 56.225704] ip_finish_output+0x27/0xa0 [ 56.229647] ip_output+0x79/0x250 [ 56.233071] ? __ip_finish_output+0x310/0x310 [ 56.237586] ip_local_out+0x3a/0x60 [ 56.241188] __ip_queue_xmit+0x1e4/0x5e0 [ 56.245223] ip_queue_xmit+0x10/0x20 [ 56.248907] dccp_transmit_skb+0x268/0x420 [ 56.253111] dccp_xmit_packet+0x70/0x170 [ 56.257141] dccp_write_xmit+0x8d/0xb0 [ 56.260998] dccp_sendmsg+0x225/0x3c0 [ 56.264774] inet_sendmsg+0x5f/0x70 [ 56.268372] sock_sendmsg+0x57/0x60 [ 56.271967] ____sys_sendmsg+0x1fc/0x270 [ 56.275997] ? copy_msghdr_from_user+0x5b/0x90 [ 56.280550] ? __lock_acquire+0x4f4/0x1700 [ 56.284756] ___sys_sendmsg+0x77/0xb0 [ 56.288527] ? lock_acquire+0xc9/0x3a0 [ 56.292385] ? find_held_lock+0x35/0xa0 [ 56.296332] ? __fget_files+0xe0/0x1d0 [ 56.300200] ? __fget_files+0xfa/0x1d0 [ 56.304064] __sys_sendmsg+0x5d/0xb0 [ 56.307755] __x64_sys_sendmsg+0x1a/0x20 [ 56.311784] do_syscall_64+0x6e/0xf0 [ 56.315469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.320626] RIP: 0033:0x453009 [ 56.323788] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.342660] RSP: 002b:00007f49817d7c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.350356] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 56.357596] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.364856] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.372095] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.379353] R13: 00000000ffffffff R14: 00007f49817d86d4 R15: 0000000000000002 [ 56.818217] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 56.831470] CPU: 1 PID: 6493 Comm: syz-executor5 Not tainted 5.8.0-rc6-syzkaller #0 [ 56.839263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.848626] Call Trace: [ 56.851202] [ 56.853340] dump_stack+0xb9/0xf1 [ 56.856787] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 56.861964] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 56.866621] dccp_deliver_input_to_ccids+0x31/0x70 [ 56.871553] dccp_rcv_established+0x49/0x70 [ 56.875871] dccp_v4_do_rcv+0x3b/0x60 [ 56.879653] __sk_receive_skb+0xcc/0x2b0 [ 56.883699] dccp_v4_rcv+0x44b/0x81a [ 56.887403] ip_protocol_deliver_rcu+0x224/0x270 [ 56.892149] ip_local_deliver_finish+0x8d/0x120 [ 56.896809] ip_local_deliver+0x17f/0x220 [ 56.900951] ? ip_protocol_deliver_rcu+0x270/0x270 [ 56.905881] ip_rcv_finish+0x3d/0x60 [ 56.909589] ip_rcv+0x15d/0x210 [ 56.912871] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 56.918095] ? process_backlog+0x90/0x280 [ 56.922240] __netif_receive_skb_one_core+0x81/0x90 [ 56.927253] __netif_receive_skb+0x13/0x60 [ 56.931478] process_backlog+0x101/0x280 [ 56.935538] net_rx_action+0x16f/0x460 [ 56.939422] ? mark_held_locks+0x4e/0x80 [ 56.943485] __do_softirq+0xd3/0x473 [ 56.947192] ? ip_finish_output2+0x22b/0xa00 [ 56.951591] asm_call_on_stack+0x12/0x20 [ 56.955627] [ 56.957839] do_softirq_own_stack+0x81/0x90 [ 56.962142] do_softirq.part.20+0x8a/0xa0 [ 56.966261] __local_bh_enable_ip+0xf6/0x100 [ 56.970648] ip_finish_output2+0x24f/0xa00 [ 56.974861] __ip_finish_output+0x11e/0x310 [ 56.979153] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 56.984397] ? __ip_finish_output+0x11e/0x310 [ 56.988860] ? ip_output+0x184/0x250 [ 56.992547] ip_finish_output+0x27/0xa0 [ 56.996491] ip_output+0x79/0x250 [ 56.999923] ? __ip_finish_output+0x310/0x310 [ 57.004401] ip_local_out+0x3a/0x60 [ 57.008007] __ip_queue_xmit+0x1e4/0x5e0 [ 57.012095] ip_queue_xmit+0x10/0x20 [ 57.015781] dccp_transmit_skb+0x268/0x420 [ 57.019989] dccp_xmit_packet+0x70/0x170 [ 57.024049] dccp_write_xmit+0x8d/0xb0 [ 57.027948] dccp_sendmsg+0x225/0x3c0 [ 57.031725] inet_sendmsg+0x5f/0x70 [ 57.035335] sock_sendmsg+0x57/0x60 [ 57.038934] ____sys_sendmsg+0x1fc/0x270 [ 57.042967] ? copy_msghdr_from_user+0x5b/0x90 [ 57.047531] ? __lock_acquire+0x4f4/0x1700 [ 57.051759] ___sys_sendmsg+0x77/0xb0 [ 57.055532] ? lock_acquire+0xc9/0x3a0 [ 57.059392] ? find_held_lock+0x35/0xa0 [ 57.063340] ? __fget_files+0xe0/0x1d0 [ 57.067202] ? __fget_files+0xfa/0x1d0 [ 57.071063] __sys_sendmsg+0x5d/0xb0 [ 57.074761] __x64_sys_sendmsg+0x1a/0x20 [ 57.078794] do_syscall_64+0x6e/0xf0 [ 57.082478] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.087638] RIP: 0033:0x453009 [ 57.090886] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.109758] RSP: 002b:00007fb3fb170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.117434] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 57.124676] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.131917] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.139158] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.146416] R13: 00000000ffffffff R14: 00007fb3fb1716d4 R15: 0000000000000002 [ 57.310398] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.323659] CPU: 1 PID: 6630 Comm: syz-executor3 Not tainted 5.8.0-rc6-syzkaller #0 [ 57.331453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.340797] Call Trace: [ 57.343365] [ 57.345503] dump_stack+0xb9/0xf1 [ 57.348951] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 57.354136] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 57.358800] dccp_deliver_input_to_ccids+0x31/0x70 [ 57.363756] dccp_rcv_established+0x49/0x70 [ 57.368080] dccp_v4_do_rcv+0x3b/0x60 [ 57.371877] __sk_receive_skb+0xcc/0x2b0 [ 57.375927] dccp_v4_rcv+0x44b/0x81a [ 57.379644] ip_protocol_deliver_rcu+0x224/0x270 [ 57.384572] ip_local_deliver_finish+0x8d/0x120 [ 57.389237] ip_local_deliver+0x17f/0x220 [ 57.393377] ? ip_protocol_deliver_rcu+0x270/0x270 [ 57.398296] ip_rcv_finish+0x3d/0x60 [ 57.401526] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.401999] ip_rcv+0x15d/0x210 [ 57.418417] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 57.423579] ? process_backlog+0x90/0x280 [ 57.427697] __netif_receive_skb_one_core+0x81/0x90 [ 57.432686] __netif_receive_skb+0x13/0x60 [ 57.436893] process_backlog+0x101/0x280 [ 57.440944] net_rx_action+0x16f/0x460 [ 57.444802] ? mark_held_locks+0x4e/0x80 [ 57.448927] __do_softirq+0xd3/0x473 [ 57.452615] ? ip_finish_output2+0x22b/0xa00 [ 57.456995] asm_call_on_stack+0x12/0x20 [ 57.461043] [ 57.463272] do_softirq_own_stack+0x81/0x90 [ 57.467565] do_softirq.part.20+0x8a/0xa0 [ 57.471684] __local_bh_enable_ip+0xf6/0x100 [ 57.476089] ip_finish_output2+0x24f/0xa00 [ 57.480298] __ip_finish_output+0x11e/0x310 [ 57.484609] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 57.489869] ? __ip_finish_output+0x11e/0x310 [ 57.494333] ? ip_output+0x184/0x250 [ 57.498020] ip_finish_output+0x27/0xa0 [ 57.501965] ip_output+0x79/0x250 [ 57.505409] ? __ip_finish_output+0x310/0x310 [ 57.509876] ip_local_out+0x3a/0x60 [ 57.513475] __ip_queue_xmit+0x1e4/0x5e0 [ 57.517512] ip_queue_xmit+0x10/0x20 [ 57.521196] dccp_transmit_skb+0x268/0x420 [ 57.525404] dccp_xmit_packet+0x70/0x170 [ 57.529453] dccp_write_xmit+0x8d/0xb0 [ 57.533314] dccp_sendmsg+0x225/0x3c0 [ 57.537111] inet_sendmsg+0x5f/0x70 [ 57.540710] sock_sendmsg+0x57/0x60 [ 57.544343] ____sys_sendmsg+0x1fc/0x270 [ 57.548384] ? copy_msghdr_from_user+0x5b/0x90 [ 57.552938] ? __lock_acquire+0x4f4/0x1700 [ 57.557150] ___sys_sendmsg+0x77/0xb0 [ 57.560923] ? lock_acquire+0xc9/0x3a0 [ 57.564796] ? find_held_lock+0x35/0xa0 [ 57.568745] ? __fget_files+0xe0/0x1d0 [ 57.572607] ? __fget_files+0xfa/0x1d0 [ 57.576490] __sys_sendmsg+0x5d/0xb0 [ 57.580184] __x64_sys_sendmsg+0x1a/0x20 [ 57.584233] do_syscall_64+0x6e/0xf0 [ 57.587919] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.593079] RIP: 0033:0x453009 [ 57.596243] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.615116] RSP: 002b:00007fe47a6f0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.622792] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 57.630032] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.637274] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.644516] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.651769] R13: 00000000ffffffff R14: 00007fe47a6f16d4 R15: 0000000000000002 [ 57.659024] CPU: 0 PID: 6666 Comm: syz-executor2 Not tainted 5.8.0-rc6-syzkaller #0 [ 57.666825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.676170] Call Trace: [ 57.678746] [ 57.680892] dump_stack+0xb9/0xf1 [ 57.684332] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 57.689524] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 57.694190] dccp_deliver_input_to_ccids+0x31/0x70 [ 57.699115] dccp_rcv_established+0x49/0x70 [ 57.703434] dccp_v4_do_rcv+0x3b/0x60 [ 57.707235] __sk_receive_skb+0xcc/0x2b0 [ 57.711288] dccp_v4_rcv+0x44b/0x81a [ 57.714997] ip_protocol_deliver_rcu+0x224/0x270 [ 57.719741] ip_local_deliver_finish+0x8d/0x120 [ 57.724408] ip_local_deliver+0x17f/0x220 [ 57.728566] ? ip_protocol_deliver_rcu+0x270/0x270 [ 57.733494] ip_rcv_finish+0x3d/0x60 [ 57.737217] ip_rcv+0x15d/0x210 [ 57.740494] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 57.745677] ? process_backlog+0x90/0x280 [ 57.749826] __netif_receive_skb_one_core+0x81/0x90 [ 57.754843] __netif_receive_skb+0x13/0x60 [ 57.759070] process_backlog+0x101/0x280 [ 57.763124] net_rx_action+0x16f/0x460 [ 57.767012] ? mark_held_locks+0x4e/0x80 [ 57.771078] __do_softirq+0xd3/0x473 [ 57.774787] ? ip_finish_output2+0x22b/0xa00 [ 57.779199] asm_call_on_stack+0x12/0x20 [ 57.783259] [ 57.785491] do_softirq_own_stack+0x81/0x90 [ 57.789799] do_softirq.part.20+0x8a/0xa0 [ 57.793931] __local_bh_enable_ip+0xf6/0x100 [ 57.795308] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.798316] ip_finish_output2+0x24f/0xa00 [ 57.798326] __ip_finish_output+0x11e/0x310 [ 57.798330] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 57.798332] ? __ip_finish_output+0x11e/0x310 [ 57.798334] ? ip_output+0x184/0x250 [ 57.798340] ip_finish_output+0x27/0xa0 [ 57.837332] ip_output+0x79/0x250 [ 57.840760] ? __ip_finish_output+0x310/0x310 [ 57.845227] ip_local_out+0x3a/0x60 [ 57.848825] __ip_queue_xmit+0x1e4/0x5e0 [ 57.852862] ip_queue_xmit+0x10/0x20 [ 57.856547] dccp_transmit_skb+0x268/0x420 [ 57.860771] dccp_xmit_packet+0x70/0x170 [ 57.864807] dccp_write_xmit+0x8d/0xb0 [ 57.868670] dccp_sendmsg+0x225/0x3c0 [ 57.872451] inet_sendmsg+0x5f/0x70 [ 57.876049] sock_sendmsg+0x57/0x60 [ 57.879649] ____sys_sendmsg+0x1fc/0x270 [ 57.883681] ? copy_msghdr_from_user+0x5b/0x90 [ 57.888264] ? __lock_acquire+0x4f4/0x1700 [ 57.892474] ___sys_sendmsg+0x77/0xb0 [ 57.896271] ? lock_acquire+0xc9/0x3a0 [ 57.900133] ? find_held_lock+0x35/0xa0 [ 57.904081] ? __fget_files+0xe0/0x1d0 [ 57.907945] ? __fget_files+0xfa/0x1d0 [ 57.911811] __sys_sendmsg+0x5d/0xb0 [ 57.915504] __x64_sys_sendmsg+0x1a/0x20 [ 57.919537] do_syscall_64+0x6e/0xf0 [ 57.923222] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.928383] RIP: 0033:0x453009 [ 57.931548] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.950421] RSP: 002b:00007fa04f022c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.958110] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 57.965359] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.972606] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.979848] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.987091] R13: 00000000ffffffff R14: 00007fa04f0236d4 R15: 0000000000000002 [ 57.994349] CPU: 1 PID: 6715 Comm: syz-executor Not tainted 5.8.0-rc6-syzkaller #0 [ 58.002055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 2020/07/26 15:20:14 executed programs: 674 [ 58.011382] Call Trace: [ 58.014062] [ 58.016187] dump_stack+0xb9/0xf1 [ 58.019613] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 58.024792] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 58.029458] dccp_deliver_input_to_ccids+0x31/0x70 [ 58.034385] dccp_rcv_established+0x49/0x70 [ 58.038705] dccp_v4_do_rcv+0x3b/0x60 [ 58.042502] __sk_receive_skb+0xcc/0x2b0 [ 58.046561] dccp_v4_rcv+0x44b/0x81a [ 58.050270] ip_protocol_deliver_rcu+0x224/0x270 [ 58.055017] ip_local_deliver_finish+0x8d/0x120 [ 58.059675] ip_local_deliver+0x17f/0x220 [ 58.063819] ? ip_protocol_deliver_rcu+0x270/0x270 [ 58.068746] ip_rcv_finish+0x3d/0x60 [ 58.072458] ip_rcv+0x15d/0x210 [ 58.075730] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 58.080907] ? process_backlog+0x90/0x280 [ 58.085044] __netif_receive_skb_one_core+0x81/0x90 [ 58.090051] __netif_receive_skb+0x13/0x60 [ 58.094281] process_backlog+0x101/0x280 [ 58.098345] net_rx_action+0x16f/0x460 [ 58.102218] ? mark_held_locks+0x4e/0x80 [ 58.106297] __do_softirq+0xd3/0x473 [ 58.110002] ? ip_finish_output2+0x22b/0xa00 [ 58.114405] asm_call_on_stack+0x12/0x20 [ 58.118456] [ 58.120687] do_softirq_own_stack+0x81/0x90 [ 58.124997] do_softirq.part.20+0x8a/0xa0 [ 58.129139] __local_bh_enable_ip+0xf6/0x100 [ 58.133548] ip_finish_output2+0x24f/0xa00 [ 58.137779] __ip_finish_output+0x11e/0x310 [ 58.142072] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 58.147326] ? __ip_finish_output+0x11e/0x310 [ 58.151799] ? ip_output+0x184/0x250 [ 58.155486] ip_finish_output+0x27/0xa0 [ 58.159431] ip_output+0x79/0x250 [ 58.162856] ? __ip_finish_output+0x310/0x310 [ 58.167425] ip_local_out+0x3a/0x60 [ 58.171022] __ip_queue_xmit+0x1e4/0x5e0 [ 58.175056] ip_queue_xmit+0x10/0x20 [ 58.178746] dccp_transmit_skb+0x268/0x420 [ 58.182951] dccp_xmit_packet+0x70/0x170 [ 58.186982] dccp_write_xmit+0x8d/0xb0 [ 58.190840] dccp_sendmsg+0x225/0x3c0 [ 58.194623] inet_sendmsg+0x5f/0x70 [ 58.198223] sock_sendmsg+0x57/0x60 [ 58.201823] ____sys_sendmsg+0x1fc/0x270 [ 58.205853] ? copy_msghdr_from_user+0x5b/0x90 [ 58.210407] ? __lock_acquire+0x4f4/0x1700 [ 58.214614] ___sys_sendmsg+0x77/0xb0 [ 58.218385] ? lock_acquire+0xc9/0x3a0 [ 58.222241] ? find_held_lock+0x35/0xa0 [ 58.226186] ? __fget_files+0xe0/0x1d0 [ 58.230049] ? __fget_files+0xfa/0x1d0 [ 58.233922] __sys_sendmsg+0x5d/0xb0 [ 58.237617] __x64_sys_sendmsg+0x1a/0x20 [ 58.241652] do_syscall_64+0x6e/0xf0 [ 58.245337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.250496] RIP: 0033:0x453009 [ 58.253657] Code: e8 ac b7 02 00 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 ab b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.272528] RSP: 002b:00007f6573559c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 58.280204] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 58.287444] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 58.294685] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 58.301927] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 58.309166] R13: 00000000ffffffff R14: 00007f657355a6d4 R15: 0000000000000002 [ 58.620456] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 58.633725] CPU: 0 PID: 6952 Comm: syz-executor4 Not tainted 5.8.0-rc6-syzkaller #0 [ 58.641507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.650861] Call Trace: [ 58.653460] [ 58.655608] dump_stack+0xb9/0xf1 [ 58.659060] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x58 [ 58.664248] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 58.668906] dccp_deliver_input_to_ccids+0x31/0x70 [ 58.673817] dccp_rcv_established+0x49/0x70 [ 58.678129] dccp_v4_do_rcv+0x3b/0x60 [ 58.681917] __sk_receive_skb+0xcc/0x2b0 [ 58.685990] dccp_v4_rcv+0x44b/0x81a [ 58.689705] ip_protocol_deliver_rcu+0x224/0x270 [ 58.694460] ip_local_deliver_finish+0x8d/0x120 [ 58.699129] ip_local_deliver+0x17f/0x220 [ 58.703265] ? ip_protocol_deliver_rcu+0x270/0x270 [ 58.703691] net_ratelimit: 329 callbacks suppressed [ 58.703693] dccp_close: ABORT with 24 bytes unread [ 58.708179] ip_rcv_finish+0x3d/0x60 [ 58.708183] ip_rcv+0x15d/0x210 [ 58.708189] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 58.708196] ? process_backlog+0x90/0x280 [ 58.708199] __netif_receive_skb_one_core+0x81/0x90 [ 58.708206] __netif_receive_skb+0x13/0x60 [ 58.708210] process_backlog+0x101/0x280 [ 58.708219] net_rx_action+0x16f/0x460 [ 58.708224] ? mark_held_locks+0x4e/0x80 [ 58.708239] __do_softirq+0xd3/0x473 [ 58.708246] ? ip_finish_output2+0x22b/0xa00 [ 58.708251] asm_call_on_stack+0x12/0x20 [ 58.717666] dccp_close: ABORT with 24 bytes unread [ 58.718161] [ 58.718168] do_softirq_own_stack+0x81/0x90 [ 58.723543] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 58.725123] do_softirq.part.20+0x8a/0xa0 [ 58.725128] __local_bh_enable_ip+0xf6/0x100 [ 58.725133] ip_finish_output2+0x24f/0xa00 [ 58.725144] __ip_finish_output+0x11e/0x310 [ 58.725148] ? __build_flow_key.constprop.60+0xe0/0xe0 [ 58.725150] ? __ip_finish_output+0x11e/0x310 [ 58.725152] ? ip_output+0x184/0x250 [ 58.725158] ip_finish_output+0x27/0xa0 [ 58.725164] ip_output+0x79/0x250 [ 58.830128] ? __ip_finish_output+0x310/0x310 [ 58.834604] ip_local_out+0x3a/0x60 [ 58.838220] __ip_queue_xmit+0x1e4/0x5e0 [ 58.842271] ip_queue_xmit+0x10/0x20 [ 58.845980] dccp_transmit_skb+0x268/0x420 [ 58.850207] dccp_xmit_packet+0x70/0x170 [ 58.854243] dccp_write_xmit+0x8d/0xb0 [ 58.858102] dccp_sendmsg+0x225/0x3c0 [ 58.861896] inet_sendmsg+0x5f/0x70 [ 58.865514] sock_sendmsg+0x57/0x60