[ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 38.172163] can: request_module (can-proto-0) failed. [ 38.175315] can: request_module (can-proto-0) failed. [ 38.895216] ip (3002) used greatest stack depth: 11488 bytes left [ 38.939877] audit: type=1400 audit(1607344260.568:8): avc: denied { sys_admin } for pid=2866 comm="syz-executor0" capability=21 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 [ 38.961856] audit: type=1400 audit(1607344260.590:9): avc: denied { sys_chroot } for pid=3027 comm="syz-executor0" capability=18 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 Warning: Permanently added '10.128.15.194' (ECDSA) to the list of known hosts. 2020/12/07 12:31:07 parsed 1 programs 2020/12/07 12:31:07 executed programs: 0 [ 47.186805] audit: type=1400 audit(1607344268.817:10): avc: denied { create } for pid=4014 comm="syz-executor4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 47.220737] dccp_close: ABORT with 24 bytes unread [ 47.224702] audit: type=1400 audit(1607344268.817:11): avc: denied { name_bind } for pid=4021 comm="syz-executor2" src=20008 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 47.250428] dccp_close: ABORT with 24 bytes unread [ 47.267872] dccp_close: ABORT with 24 bytes unread [ 47.268753] audit: type=1400 audit(1607344268.817:12): avc: denied { node_bind } for pid=4021 comm="syz-executor2" src=20008 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 [ 47.296057] dccp_close: ABORT with 24 bytes unread [ 47.311612] audit: type=1400 audit(1607344268.817:13): avc: denied { name_connect } for pid=4021 comm="syz-executor2" dest=20008 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 47.333971] audit: type=1400 audit(1607344268.817:14): avc: denied { write } for pid=4021 comm="syz-executor2" path="socket:[16088]" dev="sockfs" ino=16088 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 47.339816] dccp_close: ABORT with 24 bytes unread [ 47.359486] dccp_close: ABORT with 24 bytes unread [ 47.383245] dccp_close: ABORT with 24 bytes unread [ 47.383422] dccp_close: ABORT with 24 bytes unread [ 47.388687] dccp_close: ABORT with 24 bytes unread [ 47.403891] dccp_close: ABORT with 24 bytes unread [ 47.867923] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 47.881237] CPU: 0 PID: 4367 Comm: syz-executor Not tainted 5.10.0-rc7-syzkaller #0 [ 47.889022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.898376] Call Trace: [ 47.900946] [ 47.903088] dump_stack+0xa9/0xd1 [ 47.906546] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 47.911735] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 47.916406] dccp_deliver_input_to_ccids+0x31/0x70 [ 47.921336] dccp_rcv_established+0x49/0x70 [ 47.925651] dccp_v4_do_rcv+0x3b/0x60 [ 47.929443] __sk_receive_skb+0xcc/0x2b0 [ 47.933502] dccp_v4_rcv+0x44b/0x820 [ 47.937224] ip_protocol_deliver_rcu+0x224/0x270 [ 47.941975] ip_local_deliver_finish+0x8d/0x130 [ 47.946666] ip_local_deliver+0x184/0x220 [ 47.950809] ? ip_protocol_deliver_rcu+0x270/0x270 [ 47.955740] ip_rcv_finish+0x3d/0x60 [ 47.959448] ip_rcv+0x162/0x210 [ 47.962731] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 47.967920] ? process_backlog+0xb1/0x2d0 [ 47.972068] __netif_receive_skb_one_core+0x81/0x90 [ 47.977084] __netif_receive_skb+0x13/0x60 [ 47.981309] process_backlog+0x122/0x2d0 [ 47.985371] net_rx_action+0x17d/0x4b0 [ 47.989253] __do_softirq+0xdc/0x452 [ 47.992955] ? ip_finish_output2+0x22b/0xa10 [ 47.997355] asm_call_irq_on_stack+0x12/0x20 [ 48.001747] [ 48.003969] do_softirq_own_stack+0x5c/0x70 [ 48.008283] do_softirq.part.21+0x81/0xa0 [ 48.012410] __local_bh_enable_ip+0x10a/0x110 [ 48.016884] ip_finish_output2+0x24f/0xa10 [ 48.021099] __ip_finish_output+0x11e/0x340 [ 48.025393] ? __ip_finish_output+0x11e/0x340 [ 48.029860] ? ip_output+0x184/0x260 [ 48.033549] ip_finish_output+0x27/0xa0 [ 48.037498] ip_output+0x79/0x260 [ 48.040929] ? __ip_finish_output+0x340/0x340 [ 48.045446] ip_local_out+0x3a/0x60 [ 48.049046] __ip_queue_xmit+0x1e4/0x600 [ 48.053087] ip_queue_xmit+0x10/0x20 [ 48.056781] dccp_transmit_skb+0x26e/0x420 [ 48.060999] dccp_xmit_packet+0x70/0x170 [ 48.065089] dccp_write_xmit+0x8d/0xb0 [ 48.068952] dccp_sendmsg+0x225/0x3a0 [ 48.072738] inet_sendmsg+0x5f/0x70 [ 48.076343] sock_sendmsg+0x57/0x60 [ 48.079952] ____sys_sendmsg+0x1fc/0x270 [ 48.084431] ? copy_msghdr_from_user+0x5b/0x90 [ 48.088994] ___sys_sendmsg+0x77/0xb0 [ 48.092771] ? find_held_lock+0x35/0xa0 [ 48.096731] ? __fget_files+0xe0/0x1e0 [ 48.100599] ? __fget_files+0xff/0x1e0 [ 48.104466] ? __fget_light+0x5e/0x70 [ 48.108242] __sys_sendmsg+0x5d/0xb0 [ 48.111953] ? do_syscall_64+0x13/0x80 [ 48.115820] __x64_sys_sendmsg+0x1a/0x20 [ 48.119943] do_syscall_64+0x37/0x80 [ 48.123716] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.128889] RIP: 0033:0x453009 [ 48.132056] 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 [ 48.150933] RSP: 002b:00007fe8af2c2c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 48.158626] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 48.165875] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 48.173118] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 48.180360] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 48.187601] R13: 00000000ffffffff R14: 00007fe8af2c36d4 R15: 0000000000000002 [ 48.981519] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 48.994788] CPU: 1 PID: 4895 Comm: syz-executor3 Not tainted 5.10.0-rc7-syzkaller #0 [ 49.002650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.011995] Call Trace: [ 49.014565] [ 49.016699] dump_stack+0xa9/0xd1 [ 49.020132] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.025304] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.030041] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.034945] dccp_rcv_established+0x49/0x70 [ 49.039243] dccp_v4_do_rcv+0x3b/0x60 [ 49.043021] __sk_receive_skb+0xcc/0x2b0 [ 49.047071] dccp_v4_rcv+0x44b/0x820 [ 49.050768] ip_protocol_deliver_rcu+0x224/0x270 [ 49.055503] ip_local_deliver_finish+0x8d/0x130 [ 49.060237] ip_local_deliver+0x184/0x220 [ 49.064449] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.069358] ip_rcv_finish+0x3d/0x60 [ 49.073057] ip_rcv+0x162/0x210 [ 49.076312] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.081478] ? process_backlog+0xb1/0x2d0 [ 49.085611] __netif_receive_skb_one_core+0x81/0x90 [ 49.090609] __netif_receive_skb+0x13/0x60 [ 49.094837] process_backlog+0x122/0x2d0 [ 49.098879] net_rx_action+0x17d/0x4b0 [ 49.102757] __do_softirq+0xdc/0x452 [ 49.106451] ? ip_finish_output2+0x22b/0xa10 [ 49.110835] asm_call_irq_on_stack+0x12/0x20 [ 49.115233] [ 49.117446] do_softirq_own_stack+0x5c/0x70 [ 49.121745] do_softirq.part.21+0x81/0xa0 [ 49.125869] __local_bh_enable_ip+0x10a/0x110 [ 49.130339] ip_finish_output2+0x24f/0xa10 [ 49.134557] __ip_finish_output+0x11e/0x340 [ 49.138851] ? __ip_finish_output+0x11e/0x340 [ 49.143318] ? ip_output+0x184/0x260 [ 49.147009] ip_finish_output+0x27/0xa0 [ 49.150958] ip_output+0x79/0x260 [ 49.154391] ? __ip_finish_output+0x340/0x340 [ 49.158871] ip_local_out+0x3a/0x60 [ 49.162471] __ip_queue_xmit+0x1e4/0x600 [ 49.166523] ip_queue_xmit+0x10/0x20 [ 49.170216] dccp_transmit_skb+0x26e/0x420 [ 49.174427] dccp_xmit_packet+0x70/0x170 [ 49.178465] dccp_write_xmit+0x8d/0xb0 [ 49.182339] dccp_sendmsg+0x225/0x3a0 [ 49.186126] inet_sendmsg+0x5f/0x70 [ 49.189732] sock_sendmsg+0x57/0x60 [ 49.193333] ____sys_sendmsg+0x1fc/0x270 [ 49.197374] ? copy_msghdr_from_user+0x5b/0x90 [ 49.201945] ___sys_sendmsg+0x77/0xb0 [ 49.205730] ? find_held_lock+0x35/0xa0 [ 49.209681] ? __fget_files+0xe0/0x1e0 [ 49.213552] ? __fget_files+0xff/0x1e0 [ 49.217418] ? __fget_light+0x5e/0x70 [ 49.221198] __sys_sendmsg+0x5d/0xb0 [ 49.224910] ? do_syscall_64+0x13/0x80 [ 49.228777] __x64_sys_sendmsg+0x1a/0x20 [ 49.232810] do_syscall_64+0x37/0x80 [ 49.236530] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.241705] RIP: 0033:0x453009 [ 49.244876] 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 [ 49.263751] RSP: 002b:00007f5f1b502c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.271435] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.278677] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.285932] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.293177] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.300420] R13: 00000000ffffffff R14: 00007f5f1b5036d4 R15: 0000000000000004 [ 49.495378] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 49.508752] CPU: 1 PID: 5010 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 49.516627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.525975] Call Trace: [ 49.528551] [ 49.530701] dump_stack+0xa9/0xd1 [ 49.534156] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.539604] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.544276] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.549208] dccp_rcv_established+0x49/0x70 [ 49.553520] dccp_v4_do_rcv+0x3b/0x60 [ 49.557317] __sk_receive_skb+0xcc/0x2b0 [ 49.561380] dccp_v4_rcv+0x44b/0x820 [ 49.565095] ip_protocol_deliver_rcu+0x224/0x270 [ 49.569848] ip_local_deliver_finish+0x8d/0x130 [ 49.574512] ip_local_deliver+0x184/0x220 [ 49.578665] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.583596] ip_rcv_finish+0x3d/0x60 [ 49.587303] ip_rcv+0x162/0x210 [ 49.590570] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.595743] ? process_backlog+0xb1/0x2d0 [ 49.599871] __netif_receive_skb_one_core+0x81/0x90 [ 49.604870] __netif_receive_skb+0x13/0x60 [ 49.609160] process_backlog+0x122/0x2d0 [ 49.613200] net_rx_action+0x17d/0x4b0 [ 49.617071] __do_softirq+0xdc/0x452 [ 49.620761] ? ip_finish_output2+0x22b/0xa10 [ 49.625151] asm_call_irq_on_stack+0x12/0x20 [ 49.629534] [ 49.631743] do_softirq_own_stack+0x5c/0x70 [ 49.636040] do_softirq.part.21+0x81/0xa0 [ 49.640202] __local_bh_enable_ip+0x10a/0x110 [ 49.644673] ip_finish_output2+0x24f/0xa10 [ 49.648890] __ip_finish_output+0x11e/0x340 [ 49.653183] ? __ip_finish_output+0x11e/0x340 [ 49.657653] ? ip_output+0x184/0x260 [ 49.661342] ip_finish_output+0x27/0xa0 [ 49.665292] ip_output+0x79/0x260 [ 49.668720] ? __ip_finish_output+0x340/0x340 [ 49.673190] ip_local_out+0x3a/0x60 [ 49.676792] __ip_queue_xmit+0x1e4/0x600 [ 49.680845] ip_queue_xmit+0x10/0x20 [ 49.684532] dccp_transmit_skb+0x26e/0x420 [ 49.688745] dccp_xmit_packet+0x70/0x170 [ 49.692781] dccp_write_xmit+0x8d/0xb0 [ 49.696644] dccp_sendmsg+0x225/0x3a0 [ 49.700424] inet_sendmsg+0x5f/0x70 [ 49.704027] sock_sendmsg+0x57/0x60 [ 49.707644] ____sys_sendmsg+0x1fc/0x270 [ 49.711676] ? copy_msghdr_from_user+0x5b/0x90 [ 49.716246] ___sys_sendmsg+0x77/0xb0 [ 49.722200] ? find_held_lock+0x35/0xa0 [ 49.726158] ? __fget_files+0xe0/0x1e0 [ 49.730026] ? __fget_files+0xff/0x1e0 [ 49.733890] ? __fget_light+0x5e/0x70 [ 49.737665] __sys_sendmsg+0x5d/0xb0 [ 49.741377] ? do_syscall_64+0x13/0x80 [ 49.745241] __x64_sys_sendmsg+0x1a/0x20 [ 49.749272] do_syscall_64+0x37/0x80 [ 49.752963] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.758137] RIP: 0033:0x453009 [ 49.761300] 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 [ 49.780173] RSP: 002b:00007f4faa83bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.787851] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.795094] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.802338] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.809602] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.816850] R13: 00000000ffffffff R14: 00007f4faa83c6d4 R15: 0000000000000002 [ 49.861267] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 49.874609] CPU: 1 PID: 5069 Comm: syz-executor Not tainted 5.10.0-rc7-syzkaller #0 [ 49.882386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.891730] Call Trace: [ 49.894304] [ 49.896435] dump_stack+0xa9/0xd1 [ 49.899873] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.905043] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.909696] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.914610] dccp_rcv_established+0x49/0x70 [ 49.918909] dccp_v4_do_rcv+0x3b/0x60 [ 49.922694] __sk_receive_skb+0xcc/0x2b0 [ 49.926746] dccp_v4_rcv+0x44b/0x820 [ 49.930448] ip_protocol_deliver_rcu+0x224/0x270 [ 49.935192] ip_local_deliver_finish+0x8d/0x130 [ 49.939839] ip_local_deliver+0x184/0x220 [ 49.943970] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.948900] ip_rcv_finish+0x3d/0x60 [ 49.952592] ip_rcv+0x162/0x210 [ 49.955852] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.961027] ? process_backlog+0xb1/0x2d0 [ 49.965153] __netif_receive_skb_one_core+0x81/0x90 [ 49.970145] __netif_receive_skb+0x13/0x60 [ 49.974357] process_backlog+0x122/0x2d0 [ 49.978400] net_rx_action+0x17d/0x4b0 [ 49.982292] __do_softirq+0xdc/0x452 [ 49.985986] ? ip_finish_output2+0x22b/0xa10 [ 49.990396] asm_call_irq_on_stack+0x12/0x20 [ 49.994779] [ 49.997018] do_softirq_own_stack+0x5c/0x70 [ 50.001324] do_softirq.part.21+0x81/0xa0 [ 50.005447] __local_bh_enable_ip+0x10a/0x110 [ 50.009917] ip_finish_output2+0x24f/0xa10 [ 50.014140] __ip_finish_output+0x11e/0x340 [ 50.018524] ? __ip_finish_output+0x11e/0x340 [ 50.022991] ? ip_output+0x184/0x260 [ 50.026689] ip_finish_output+0x27/0xa0 [ 50.030644] ip_output+0x79/0x260 [ 50.034081] ? __ip_finish_output+0x340/0x340 [ 50.038819] ip_local_out+0x3a/0x60 [ 50.042421] __ip_queue_xmit+0x1e4/0x600 [ 50.046475] ip_queue_xmit+0x10/0x20 [ 50.050165] dccp_transmit_skb+0x26e/0x420 [ 50.054395] dccp_xmit_packet+0x70/0x170 [ 50.058438] dccp_write_xmit+0x8d/0xb0 [ 50.062306] dccp_sendmsg+0x225/0x3a0 [ 50.066092] inet_sendmsg+0x5f/0x70 [ 50.069703] sock_sendmsg+0x57/0x60 [ 50.073413] ____sys_sendmsg+0x1fc/0x270 [ 50.077448] ? copy_msghdr_from_user+0x5b/0x90 [ 50.082017] ___sys_sendmsg+0x77/0xb0 [ 50.085807] ? find_held_lock+0x35/0xa0 [ 50.089762] ? __fget_files+0xe0/0x1e0 [ 50.093636] ? __fget_files+0xff/0x1e0 [ 50.097503] ? __fget_light+0x5e/0x70 [ 50.101283] __sys_sendmsg+0x5d/0xb0 [ 50.104980] ? do_syscall_64+0x13/0x80 [ 50.108853] __x64_sys_sendmsg+0x1a/0x20 [ 50.112889] do_syscall_64+0x37/0x80 [ 50.116581] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.121746] RIP: 0033:0x453009 [ 50.124918] 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 [ 50.143793] RSP: 002b:00007fe8af2c2c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.151737] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.158983] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.166229] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.173476] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.180721] R13: 00000000ffffffff R14: 00007fe8af2c36d4 R15: 0000000000000004 [ 50.695340] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 50.708586] CPU: 1 PID: 5394 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 50.716450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.725782] Call Trace: [ 50.728340] [ 50.730652] dump_stack+0xa9/0xd1 [ 50.734085] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 50.739251] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 50.743901] dccp_deliver_input_to_ccids+0x31/0x70 [ 50.750114] dccp_rcv_established+0x49/0x70 [ 50.754448] dccp_v4_do_rcv+0x3b/0x60 [ 50.758227] __sk_receive_skb+0xcc/0x2b0 [ 50.762269] dccp_v4_rcv+0x44b/0x820 [ 50.765971] ip_protocol_deliver_rcu+0x224/0x270 [ 50.770707] ip_local_deliver_finish+0x8d/0x130 [ 50.775355] ip_local_deliver+0x184/0x220 [ 50.779483] ? ip_protocol_deliver_rcu+0x270/0x270 [ 50.784571] ip_rcv_finish+0x3d/0x60 [ 50.788261] ip_rcv+0x162/0x210 [ 50.791521] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 50.797643] ? process_backlog+0xb1/0x2d0 [ 50.801766] __netif_receive_skb_one_core+0x81/0x90 [ 50.806759] __netif_receive_skb+0x13/0x60 [ 50.810970] process_backlog+0x122/0x2d0 [ 50.815029] net_rx_action+0x17d/0x4b0 [ 50.818905] __do_softirq+0xdc/0x452 [ 50.822611] ? ip_finish_output2+0x22b/0xa10 [ 50.826999] asm_call_irq_on_stack+0x12/0x20 [ 50.831380] [ 50.833595] do_softirq_own_stack+0x5c/0x70 [ 50.837893] do_softirq.part.21+0x81/0xa0 [ 50.842019] __local_bh_enable_ip+0x10a/0x110 [ 50.846491] ip_finish_output2+0x24f/0xa10 [ 50.850711] __ip_finish_output+0x11e/0x340 [ 50.855006] ? __ip_finish_output+0x11e/0x340 [ 50.859495] ? ip_output+0x184/0x260 [ 50.863186] ip_finish_output+0x27/0xa0 [ 50.867139] ip_output+0x79/0x260 [ 50.870574] ? __ip_finish_output+0x340/0x340 [ 50.875047] ip_local_out+0x3a/0x60 [ 50.878651] __ip_queue_xmit+0x1e4/0x600 [ 50.882700] ip_queue_xmit+0x10/0x20 [ 50.886391] dccp_transmit_skb+0x26e/0x420 [ 50.890712] dccp_xmit_packet+0x70/0x170 [ 50.894749] dccp_write_xmit+0x8d/0xb0 [ 50.898611] dccp_sendmsg+0x225/0x3a0 [ 50.902404] inet_sendmsg+0x5f/0x70 [ 50.906021] sock_sendmsg+0x57/0x60 [ 50.909622] ____sys_sendmsg+0x1fc/0x270 [ 50.913665] ? copy_msghdr_from_user+0x5b/0x90 [ 50.918230] ___sys_sendmsg+0x77/0xb0 [ 50.922021] ? find_held_lock+0x35/0xa0 [ 50.925970] ? __fget_files+0xe0/0x1e0 [ 50.929840] ? __fget_files+0xff/0x1e0 [ 50.933705] ? __fget_light+0x5e/0x70 [ 50.937487] __sys_sendmsg+0x5d/0xb0 [ 50.941180] ? do_syscall_64+0x13/0x80 [ 50.945046] __x64_sys_sendmsg+0x1a/0x20 [ 50.949079] do_syscall_64+0x37/0x80 [ 50.952767] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.957929] RIP: 0033:0x453009 [ 50.961095] 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 [ 50.980316] RSP: 002b:00007f4faa83bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.988004] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.995249] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.002497] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 51.009740] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.016983] R13: 00000000ffffffff R14: 00007f4faa83c6d4 R15: 0000000000000002 2020/12/07 12:31:12 executed programs: 364 [ 51.273608] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 51.286846] CPU: 1 PID: 5552 Comm: syz-executor5 Not tainted 5.10.0-rc7-syzkaller #0 [ 51.294713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.304045] Call Trace: [ 51.306606] [ 51.308734] dump_stack+0xa9/0xd1 [ 51.312163] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 51.317329] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 51.321979] dccp_deliver_input_to_ccids+0x31/0x70 [ 51.326898] dccp_rcv_established+0x49/0x70 [ 51.331195] dccp_v4_do_rcv+0x3b/0x60 [ 51.334988] __sk_receive_skb+0xcc/0x2b0 [ 51.339053] dccp_v4_rcv+0x44b/0x820 [ 51.342768] ip_protocol_deliver_rcu+0x224/0x270 [ 51.347520] ip_local_deliver_finish+0x8d/0x130 [ 51.352188] ip_local_deliver+0x184/0x220 [ 51.356342] ? ip_protocol_deliver_rcu+0x270/0x270 [ 51.361273] ip_rcv_finish+0x3d/0x60 [ 51.364994] ip_rcv+0x162/0x210 [ 51.368275] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 51.373464] ? process_backlog+0xb1/0x2d0 [ 51.377609] __netif_receive_skb_one_core+0x81/0x90 [ 51.382620] __netif_receive_skb+0x13/0x60 [ 51.386851] process_backlog+0x122/0x2d0 [ 51.390911] net_rx_action+0x17d/0x4b0 [ 51.394805] __do_softirq+0xdc/0x452 [ 51.398515] ? ip_finish_output2+0x22b/0xa10 [ 51.402924] asm_call_irq_on_stack+0x12/0x20 [ 51.407327] [ 51.409564] do_softirq_own_stack+0x5c/0x70 [ 51.413875] do_softirq.part.21+0x81/0xa0 [ 51.418010] __local_bh_enable_ip+0x10a/0x110 [ 51.422491] ip_finish_output2+0x24f/0xa10 [ 51.426709] __ip_finish_output+0x11e/0x340 [ 51.431010] ? __ip_finish_output+0x11e/0x340 [ 51.435487] ? ip_output+0x184/0x260 [ 51.439178] ip_finish_output+0x27/0xa0 [ 51.443127] ip_output+0x79/0x260 [ 51.446557] ? __ip_finish_output+0x340/0x340 [ 51.451034] ip_local_out+0x3a/0x60 [ 51.454634] __ip_queue_xmit+0x1e4/0x600 [ 51.458774] ip_queue_xmit+0x10/0x20 [ 51.462462] dccp_transmit_skb+0x26e/0x420 [ 51.466677] dccp_xmit_packet+0x70/0x170 [ 51.470713] dccp_write_xmit+0x8d/0xb0 [ 51.474572] dccp_sendmsg+0x225/0x3a0 [ 51.478354] inet_sendmsg+0x5f/0x70 [ 51.481955] sock_sendmsg+0x57/0x60 [ 51.485557] ____sys_sendmsg+0x1fc/0x270 [ 51.489589] ? copy_msghdr_from_user+0x5b/0x90 [ 51.494181] ___sys_sendmsg+0x77/0xb0 [ 51.497963] ? find_held_lock+0x35/0xa0 [ 51.501916] ? __fget_files+0xe0/0x1e0 [ 51.505788] ? __fget_files+0xff/0x1e0 [ 51.509656] ? __fget_light+0x5e/0x70 [ 51.513435] __sys_sendmsg+0x5d/0xb0 [ 51.517128] ? do_syscall_64+0x13/0x80 [ 51.520995] __x64_sys_sendmsg+0x1a/0x20 [ 51.525028] do_syscall_64+0x37/0x80 [ 51.528715] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.533876] RIP: 0033:0x453009 [ 51.537058] 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 [ 51.555946] RSP: 002b:00007f8121477c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 51.563669] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 51.570923] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.582509] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 51.589751] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.597009] R13: 00000000ffffffff R14: 00007f81214786d4 R15: 0000000000000002 [ 51.908145] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 51.921405] CPU: 1 PID: 5775 Comm: syz-executor5 Not tainted 5.10.0-rc7-syzkaller #0 [ 51.929278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.938706] Call Trace: [ 51.941448] [ 51.943592] dump_stack+0xa9/0xd1 [ 51.947040] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 51.952229] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 51.956987] dccp_deliver_input_to_ccids+0x31/0x70 [ 51.961914] dccp_rcv_established+0x49/0x70 [ 51.969018] dccp_v4_do_rcv+0x3b/0x60 [ 51.972814] __sk_receive_skb+0xcc/0x2b0 [ 51.976958] dccp_v4_rcv+0x44b/0x820 [ 51.980660] ip_protocol_deliver_rcu+0x224/0x270 [ 51.985398] ip_local_deliver_finish+0x8d/0x130 [ 51.990043] ip_local_deliver+0x184/0x220 [ 51.994170] ? ip_protocol_deliver_rcu+0x270/0x270 [ 51.999075] ip_rcv_finish+0x3d/0x60 [ 52.002762] ip_rcv+0x162/0x210 [ 52.006021] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 52.011185] ? process_backlog+0xb1/0x2d0 [ 52.015307] __netif_receive_skb_one_core+0x81/0x90 [ 52.020342] __netif_receive_skb+0x13/0x60 [ 52.024556] process_backlog+0x122/0x2d0 [ 52.028642] net_rx_action+0x17d/0x4b0 [ 52.032530] __do_softirq+0xdc/0x452 [ 52.036223] ? ip_finish_output2+0x22b/0xa10 [ 52.040621] asm_call_irq_on_stack+0x12/0x20 [ 52.045006] [ 52.047272] do_softirq_own_stack+0x5c/0x70 [ 52.051637] do_softirq.part.21+0x81/0xa0 [ 52.055763] __local_bh_enable_ip+0x10a/0x110 [ 52.060254] ip_finish_output2+0x24f/0xa10 [ 52.064480] __ip_finish_output+0x11e/0x340 [ 52.068775] ? __ip_finish_output+0x11e/0x340 [ 52.073246] ? ip_output+0x184/0x260 [ 52.076942] ip_finish_output+0x27/0xa0 [ 52.080930] ip_output+0x79/0x260 [ 52.084360] ? __ip_finish_output+0x340/0x340 [ 52.088859] ip_local_out+0x3a/0x60 [ 52.092461] __ip_queue_xmit+0x1e4/0x600 [ 52.096500] ip_queue_xmit+0x10/0x20 [ 52.100186] dccp_transmit_skb+0x26e/0x420 [ 52.104398] dccp_xmit_packet+0x70/0x170 [ 52.108436] dccp_write_xmit+0x8d/0xb0 [ 52.112299] dccp_sendmsg+0x225/0x3a0 [ 52.116099] inet_sendmsg+0x5f/0x70 [ 52.119709] sock_sendmsg+0x57/0x60 [ 52.123328] ____sys_sendmsg+0x1fc/0x270 [ 52.127371] ? copy_msghdr_from_user+0x5b/0x90 [ 52.131945] ___sys_sendmsg+0x77/0xb0 [ 52.135723] ? find_held_lock+0x35/0xa0 [ 52.139672] ? __fget_files+0xe0/0x1e0 [ 52.143541] ? __fget_files+0xff/0x1e0 [ 52.147411] ? __fget_light+0x5e/0x70 [ 52.151459] __sys_sendmsg+0x5d/0xb0 [ 52.155153] ? do_syscall_64+0x13/0x80 [ 52.159029] __x64_sys_sendmsg+0x1a/0x20 [ 52.163063] do_syscall_64+0x37/0x80 [ 52.166770] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.171931] RIP: 0033:0x453009 [ 52.175095] 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 [ 52.193972] RSP: 002b:00007f8121477c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 52.201651] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 52.208893] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 52.216136] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 52.223389] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 52.230636] R13: 00000000ffffffff R14: 00007f81214786d4 R15: 0000000000000002 [ 52.244542] net_ratelimit: 431 callbacks suppressed [ 52.244546] dccp_close: ABORT with 24 bytes unread [ 52.277430] dccp_close: ABORT with 24 bytes unread [ 52.295589] dccp_close: ABORT with 24 bytes unread [ 52.295799] dccp_close: ABORT with 24 bytes unread [ 52.304558] dccp_close: ABORT with 24 bytes unread [ 52.307386] dccp_close: ABORT with 24 bytes unread [ 52.320882] dccp_close: ABORT with 24 bytes unread [ 52.337225] dccp_close: ABORT with 24 bytes unread [ 52.343786] dccp_close: ABORT with 24 bytes unread [ 52.352096] dccp_close: ABORT with 24 bytes unread [ 52.694200] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 52.707430] CPU: 0 PID: 6055 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 52.715285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.724613] Call Trace: [ 52.727175] [ 52.729315] dump_stack+0xa9/0xd1 [ 52.732748] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 52.737912] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 52.742565] dccp_deliver_input_to_ccids+0x31/0x70 [ 52.747469] dccp_rcv_established+0x49/0x70 [ 52.751766] dccp_v4_do_rcv+0x3b/0x60 [ 52.755541] __sk_receive_skb+0xcc/0x2b0 [ 52.759580] dccp_v4_rcv+0x44b/0x820 [ 52.763275] ip_protocol_deliver_rcu+0x224/0x270 [ 52.768008] ip_local_deliver_finish+0x8d/0x130 [ 52.772651] ip_local_deliver+0x184/0x220 [ 52.776773] ? ip_protocol_deliver_rcu+0x270/0x270 [ 52.781680] ip_rcv_finish+0x3d/0x60 [ 52.787539] ip_rcv+0x162/0x210 [ 52.790808] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 52.795975] ? process_backlog+0xb1/0x2d0 [ 52.800098] __netif_receive_skb_one_core+0x81/0x90 [ 52.805090] __netif_receive_skb+0x13/0x60 [ 52.809735] process_backlog+0x122/0x2d0 [ 52.813775] net_rx_action+0x17d/0x4b0 [ 52.817648] __do_softirq+0xdc/0x452 [ 52.821341] ? ip_finish_output2+0x22b/0xa10 [ 52.825726] asm_call_irq_on_stack+0x12/0x20 [ 52.830111] [ 52.832337] do_softirq_own_stack+0x5c/0x70 [ 52.836633] do_softirq.part.21+0x81/0xa0 [ 52.840769] __local_bh_enable_ip+0x10a/0x110 [ 52.845239] ip_finish_output2+0x24f/0xa10 [ 52.849457] __ip_finish_output+0x11e/0x340 [ 52.853750] ? __ip_finish_output+0x11e/0x340 [ 52.858216] ? ip_output+0x184/0x260 [ 52.861911] ip_finish_output+0x27/0xa0 [ 52.865864] ip_output+0x79/0x260 [ 52.869312] ? __ip_finish_output+0x340/0x340 [ 52.873803] ip_local_out+0x3a/0x60 [ 52.877425] __ip_queue_xmit+0x1e4/0x600 [ 52.881469] ip_queue_xmit+0x10/0x20 [ 52.885169] dccp_transmit_skb+0x26e/0x420 [ 52.889381] dccp_xmit_packet+0x70/0x170 [ 52.893420] dccp_write_xmit+0x8d/0xb0 [ 52.897284] dccp_sendmsg+0x225/0x3a0 [ 52.901067] inet_sendmsg+0x5f/0x70 [ 52.904669] sock_sendmsg+0x57/0x60 [ 52.908271] ____sys_sendmsg+0x1fc/0x270 [ 52.912312] ? copy_msghdr_from_user+0x5b/0x90 [ 52.916877] ___sys_sendmsg+0x77/0xb0 [ 52.920660] ? find_held_lock+0x35/0xa0 [ 52.924618] ? __fget_files+0xe0/0x1e0 [ 52.928490] ? __fget_files+0xff/0x1e0 [ 52.932357] ? __fget_light+0x5e/0x70 [ 52.936146] __sys_sendmsg+0x5d/0xb0 [ 52.939859] ? do_syscall_64+0x13/0x80 [ 52.943724] __x64_sys_sendmsg+0x1a/0x20 [ 52.947758] do_syscall_64+0x37/0x80 [ 52.951447] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.956619] RIP: 0033:0x453009 [ 52.959787] 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 [ 52.978669] RSP: 002b:00007f4faa83bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 52.986351] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 52.993620] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.000864] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.008108] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.015349] R13: 00000000ffffffff R14: 00007f4faa83c6d4 R15: 0000000000000002 [ 53.204403] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 53.217663] CPU: 1 PID: 6172 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 53.225543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.234888] Call Trace: [ 53.237462] [ 53.239606] dump_stack+0xa9/0xd1 [ 53.243056] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 53.248237] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 53.252902] dccp_deliver_input_to_ccids+0x31/0x70 [ 53.257829] dccp_rcv_established+0x49/0x70 [ 53.262141] dccp_v4_do_rcv+0x3b/0x60 [ 53.265935] __sk_receive_skb+0xcc/0x2b0 [ 53.270077] dccp_v4_rcv+0x44b/0x820 [ 53.273787] ip_protocol_deliver_rcu+0x224/0x270 [ 53.278551] ip_local_deliver_finish+0x8d/0x130 [ 53.283219] ip_local_deliver+0x184/0x220 [ 53.287362] ? ip_protocol_deliver_rcu+0x270/0x270 [ 53.292348] ip_rcv_finish+0x3d/0x60 [ 53.296057] ip_rcv+0x162/0x210 [ 53.299331] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 53.304542] ? process_backlog+0xb1/0x2d0 [ 53.308686] __netif_receive_skb_one_core+0x81/0x90 [ 53.313695] __netif_receive_skb+0x13/0x60 [ 53.317916] process_backlog+0x122/0x2d0 [ 53.322015] net_rx_action+0x17d/0x4b0 [ 53.325900] __do_softirq+0xdc/0x452 [ 53.329616] ? ip_finish_output2+0x22b/0xa10 [ 53.334004] asm_call_irq_on_stack+0x12/0x20 [ 53.338411] [ 53.340664] do_softirq_own_stack+0x5c/0x70 [ 53.344957] do_softirq.part.21+0x81/0xa0 [ 53.349115] __local_bh_enable_ip+0x10a/0x110 [ 53.353619] ip_finish_output2+0x24f/0xa10 [ 53.357838] __ip_finish_output+0x11e/0x340 [ 53.362140] ? __ip_finish_output+0x11e/0x340 [ 53.366746] ? ip_output+0x184/0x260 [ 53.370441] ip_finish_output+0x27/0xa0 [ 53.374396] ip_output+0x79/0x260 [ 53.377827] ? __ip_finish_output+0x340/0x340 [ 53.382307] ip_local_out+0x3a/0x60 [ 53.385909] __ip_queue_xmit+0x1e4/0x600 [ 53.389952] ip_queue_xmit+0x10/0x20 [ 53.393644] dccp_transmit_skb+0x26e/0x420 [ 53.397868] dccp_xmit_packet+0x70/0x170 [ 53.401907] dccp_write_xmit+0x8d/0xb0 [ 53.405768] dccp_sendmsg+0x225/0x3a0 [ 53.409546] inet_sendmsg+0x5f/0x70 [ 53.413148] sock_sendmsg+0x57/0x60 [ 53.416751] ____sys_sendmsg+0x1fc/0x270 [ 53.420783] ? copy_msghdr_from_user+0x5b/0x90 [ 53.425357] ___sys_sendmsg+0x77/0xb0 [ 53.429134] ? find_held_lock+0x35/0xa0 [ 53.433084] ? __fget_files+0xe0/0x1e0 [ 53.436970] ? __fget_files+0xff/0x1e0 [ 53.440838] ? __fget_light+0x5e/0x70 [ 53.444747] __sys_sendmsg+0x5d/0xb0 [ 53.448444] ? do_syscall_64+0x13/0x80 [ 53.452315] __x64_sys_sendmsg+0x1a/0x20 [ 53.456349] do_syscall_64+0x37/0x80 [ 53.460040] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.465201] RIP: 0033:0x453009 [ 53.468365] 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 [ 53.487250] RSP: 002b:00007f4faa83bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 53.494930] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 53.502171] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.509413] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.516660] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.523923] R13: 00000000ffffffff R14: 00007f4faa83c6d4 R15: 0000000000000002 [ 54.202243] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 54.215489] CPU: 0 PID: 6625 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 54.223366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.232807] Call Trace: [ 54.235386] [ 54.237524] dump_stack+0xa9/0xd1 [ 54.240972] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 54.246160] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 54.250834] dccp_deliver_input_to_ccids+0x31/0x70 [ 54.255761] dccp_rcv_established+0x49/0x70 [ 54.260074] dccp_v4_do_rcv+0x3b/0x60 [ 54.263871] __sk_receive_skb+0xcc/0x2b0 [ 54.267934] dccp_v4_rcv+0x44b/0x820 [ 54.271656] ip_protocol_deliver_rcu+0x224/0x270 [ 54.276403] ip_local_deliver_finish+0x8d/0x130 [ 54.281080] ip_local_deliver+0x184/0x220 [ 54.285219] ? ip_protocol_deliver_rcu+0x270/0x270 [ 54.290140] ip_rcv_finish+0x3d/0x60 [ 54.293842] ip_rcv+0x162/0x210 [ 54.297117] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 54.302307] ? process_backlog+0xb1/0x2d0 [ 54.306454] __netif_receive_skb_one_core+0x81/0x90 [ 54.311465] __netif_receive_skb+0x13/0x60 [ 54.315695] process_backlog+0x122/0x2d0 [ 54.319761] net_rx_action+0x17d/0x4b0 [ 54.323655] __do_softirq+0xdc/0x452 [ 54.327367] ? ip_finish_output2+0x22b/0xa10 [ 54.331768] asm_call_irq_on_stack+0x12/0x20 [ 54.336319] [ 54.338536] do_softirq_own_stack+0x5c/0x70 [ 54.342834] do_softirq.part.21+0x81/0xa0 [ 54.346960] __local_bh_enable_ip+0x10a/0x110 [ 54.351432] ip_finish_output2+0x24f/0xa10 [ 54.356091] __ip_finish_output+0x11e/0x340 [ 54.360475] ? __ip_finish_output+0x11e/0x340 [ 54.364943] ? ip_output+0x184/0x260 [ 54.368637] ip_finish_output+0x27/0xa0 [ 54.372598] ip_output+0x79/0x260 [ 54.376027] ? __ip_finish_output+0x340/0x340 [ 54.380502] ip_local_out+0x3a/0x60 [ 54.384102] __ip_queue_xmit+0x1e4/0x600 [ 54.388141] ip_queue_xmit+0x10/0x20 [ 54.391828] dccp_transmit_skb+0x26e/0x420 [ 54.396045] dccp_xmit_packet+0x70/0x170 [ 54.400082] dccp_write_xmit+0x8d/0xb0 [ 54.403943] dccp_sendmsg+0x225/0x3a0 [ 54.407721] inet_sendmsg+0x5f/0x70 [ 54.411326] sock_sendmsg+0x57/0x60 [ 54.414929] ____sys_sendmsg+0x1fc/0x270 [ 54.419397] ? copy_msghdr_from_user+0x5b/0x90 [ 54.423976] ___sys_sendmsg+0x77/0xb0 [ 54.427754] ? find_held_lock+0x35/0xa0 [ 54.431714] ? __fget_files+0xe0/0x1e0 [ 54.435591] ? __fget_files+0xff/0x1e0 [ 54.439456] ? __fget_light+0x5e/0x70 [ 54.443232] __sys_sendmsg+0x5d/0xb0 [ 54.446925] ? do_syscall_64+0x13/0x80 [ 54.451222] __x64_sys_sendmsg+0x1a/0x20 [ 54.455256] do_syscall_64+0x37/0x80 [ 54.458955] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.464129] RIP: 0033:0x453009 [ 54.470159] 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 [ 54.489472] RSP: 002b:00007f5736fe8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 54.497199] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 54.504446] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 54.511697] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 54.518990] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 54.526270] R13: 00000000ffffffff R14: 00007f5736fe96d4 R15: 0000000000000004 [ 54.891058] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 54.904279] CPU: 0 PID: 6877 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 54.912236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.921582] Call Trace: [ 54.924155] [ 54.926302] dump_stack+0xa9/0xd1 [ 54.929759] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 54.934943] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 54.939612] dccp_deliver_input_to_ccids+0x31/0x70 [ 54.944540] dccp_rcv_established+0x49/0x70 [ 54.948853] dccp_v4_do_rcv+0x3b/0x60 [ 54.952646] __sk_receive_skb+0xcc/0x2b0 [ 54.956705] dccp_v4_rcv+0x44b/0x820 [ 54.960418] ip_protocol_deliver_rcu+0x224/0x270 [ 54.965191] ip_local_deliver_finish+0x8d/0x130 [ 54.969858] ip_local_deliver+0x184/0x220 [ 54.973996] ? ip_protocol_deliver_rcu+0x270/0x270 [ 54.978919] ip_rcv_finish+0x3d/0x60 [ 54.982665] ip_rcv+0x162/0x210 [ 54.985924] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 54.991096] ? process_backlog+0xb1/0x2d0 [ 54.995222] __netif_receive_skb_one_core+0x81/0x90 [ 55.000221] __netif_receive_skb+0x13/0x60 [ 55.004443] process_backlog+0x122/0x2d0 [ 55.008502] net_rx_action+0x17d/0x4b0 [ 55.012384] __do_softirq+0xdc/0x452 [ 55.016093] ? ip_finish_output2+0x22b/0xa10 [ 55.020495] asm_call_irq_on_stack+0x12/0x20 [ 55.024887] [ 55.027116] do_softirq_own_stack+0x5c/0x70 [ 55.031436] do_softirq.part.21+0x81/0xa0 [ 55.035572] __local_bh_enable_ip+0x10a/0x110 [ 55.040056] ip_finish_output2+0x24f/0xa10 [ 55.044291] __ip_finish_output+0x11e/0x340 [ 55.048602] ? __ip_finish_output+0x11e/0x340 [ 55.053070] ? ip_output+0x184/0x260 [ 55.056769] ip_finish_output+0x27/0xa0 [ 55.060725] ip_output+0x79/0x260 [ 55.064156] ? __ip_finish_output+0x340/0x340 [ 55.068631] ip_local_out+0x3a/0x60 [ 55.072229] __ip_queue_xmit+0x1e4/0x600 [ 55.076268] ip_queue_xmit+0x10/0x20 [ 55.079957] dccp_transmit_skb+0x26e/0x420 [ 55.084171] dccp_xmit_packet+0x70/0x170 [ 55.088221] dccp_write_xmit+0x8d/0xb0 [ 55.092080] dccp_sendmsg+0x225/0x3a0 [ 55.095876] inet_sendmsg+0x5f/0x70 [ 55.099480] sock_sendmsg+0x57/0x60 [ 55.103081] ____sys_sendmsg+0x1fc/0x270 [ 55.107111] ? copy_msghdr_from_user+0x5b/0x90 [ 55.111686] ___sys_sendmsg+0x77/0xb0 [ 55.115478] ? find_held_lock+0x35/0xa0 [ 55.119427] ? __fget_files+0xe0/0x1e0 [ 55.123295] ? __fget_files+0xff/0x1e0 [ 55.127158] ? __fget_light+0x5e/0x70 [ 55.130939] __sys_sendmsg+0x5d/0xb0 [ 55.134640] ? do_syscall_64+0x13/0x80 [ 55.138503] __x64_sys_sendmsg+0x1a/0x20 [ 55.142541] do_syscall_64+0x37/0x80 [ 55.146228] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.151408] RIP: 0033:0x453009 [ 55.155355] 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 [ 55.174243] RSP: 002b:00007f5736fe8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.181924] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 55.189172] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.196430] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.203672] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.210916] R13: 00000000ffffffff R14: 00007f5736fe96d4 R15: 0000000000000002 [ 55.316204] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 55.329437] CPU: 0 PID: 6971 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 55.337293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.346627] Call Trace: [ 55.349184] [ 55.351323] dump_stack+0xa9/0xd1 [ 55.354774] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 55.359977] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 55.364631] dccp_deliver_input_to_ccids+0x31/0x70 [ 55.369638] dccp_rcv_established+0x49/0x70 [ 55.373958] dccp_v4_do_rcv+0x3b/0x60 [ 55.377735] __sk_receive_skb+0xcc/0x2b0 [ 55.381781] dccp_v4_rcv+0x44b/0x820 [ 55.385493] ip_protocol_deliver_rcu+0x224/0x270 [ 55.390228] ip_local_deliver_finish+0x8d/0x130 [ 55.394877] ip_local_deliver+0x184/0x220 [ 55.399005] ? ip_protocol_deliver_rcu+0x270/0x270 [ 55.403919] ip_rcv_finish+0x3d/0x60 [ 55.407610] ip_rcv+0x162/0x210 [ 55.410872] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 55.416040] ? process_backlog+0xb1/0x2d0 [ 55.420165] __netif_receive_skb_one_core+0x81/0x90 [ 55.425420] __netif_receive_skb+0x13/0x60 [ 55.429636] process_backlog+0x122/0x2d0 [ 55.433684] net_rx_action+0x17d/0x4b0 [ 55.437557] __do_softirq+0xdc/0x452 [ 55.441263] ? ip_finish_output2+0x22b/0xa10 [ 55.445657] asm_call_irq_on_stack+0x12/0x20 [ 55.450043] [ 55.452259] do_softirq_own_stack+0x5c/0x70 [ 55.456556] do_softirq.part.21+0x81/0xa0 [ 55.460702] __local_bh_enable_ip+0x10a/0x110 [ 55.465177] ip_finish_output2+0x24f/0xa10 [ 55.469398] __ip_finish_output+0x11e/0x340 [ 55.473695] ? __ip_finish_output+0x11e/0x340 [ 55.478163] ? ip_output+0x184/0x260 [ 55.481855] ip_finish_output+0x27/0xa0 [ 55.485809] ip_output+0x79/0x260 [ 55.489264] ? __ip_finish_output+0x340/0x340 [ 55.493743] ip_local_out+0x3a/0x60 [ 55.497351] __ip_queue_xmit+0x1e4/0x600 [ 55.501409] ip_queue_xmit+0x10/0x20 [ 55.505102] dccp_transmit_skb+0x26e/0x420 [ 55.509319] dccp_xmit_packet+0x70/0x170 [ 55.513364] dccp_write_xmit+0x8d/0xb0 [ 55.517231] dccp_sendmsg+0x225/0x3a0 [ 55.521024] inet_sendmsg+0x5f/0x70 [ 55.524638] sock_sendmsg+0x57/0x60 [ 55.528242] ____sys_sendmsg+0x1fc/0x270 [ 55.532281] ? copy_msghdr_from_user+0x5b/0x90 [ 55.536851] ___sys_sendmsg+0x77/0xb0 [ 55.540637] ? find_held_lock+0x35/0xa0 [ 55.544613] ? __fget_files+0xe0/0x1e0 [ 55.548509] ? __fget_files+0xff/0x1e0 [ 55.552378] ? __fget_light+0x5e/0x70 [ 55.556157] __sys_sendmsg+0x5d/0xb0 [ 55.559854] ? do_syscall_64+0x13/0x80 [ 55.563732] __x64_sys_sendmsg+0x1a/0x20 [ 55.567770] do_syscall_64+0x37/0x80 [ 55.571461] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.576630] RIP: 0033:0x453009 [ 55.579887] 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 [ 55.598850] RSP: 002b:00007f5736fe8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.606550] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 55.613828] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.621074] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.628321] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.635572] R13: 00000000ffffffff R14: 00007f5736fe96d4 R15: 0000000000000002 [ 55.878966] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 55.892215] CPU: 0 PID: 7121 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 55.900166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.909497] Call Trace: [ 55.912056] [ 55.914186] dump_stack+0xa9/0xd1 [ 55.917623] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 55.922790] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 55.927447] dccp_deliver_input_to_ccids+0x31/0x70 [ 55.932354] dccp_rcv_established+0x49/0x70 [ 55.936652] dccp_v4_do_rcv+0x3b/0x60 [ 55.940429] __sk_receive_skb+0xcc/0x2b0 [ 55.944469] dccp_v4_rcv+0x44b/0x820 [ 55.948176] ip_protocol_deliver_rcu+0x224/0x270 [ 55.952912] ip_local_deliver_finish+0x8d/0x130 [ 55.957557] ip_local_deliver+0x184/0x220 [ 55.961689] ? ip_protocol_deliver_rcu+0x270/0x270 [ 55.966599] ip_rcv_finish+0x3d/0x60 [ 55.970288] ip_rcv+0x162/0x210 [ 55.973548] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 55.978724] ? process_backlog+0xb1/0x2d0 [ 55.982855] __netif_receive_skb_one_core+0x81/0x90 [ 55.987849] __netif_receive_skb+0x13/0x60 [ 55.992062] process_backlog+0x122/0x2d0 [ 55.996104] net_rx_action+0x17d/0x4b0 [ 55.999978] __do_softirq+0xdc/0x452 [ 56.003678] ? ip_finish_output2+0x22b/0xa10 [ 56.008495] asm_call_irq_on_stack+0x12/0x20 [ 56.012976] [ 56.015187] do_softirq_own_stack+0x5c/0x70 [ 56.019486] do_softirq.part.21+0x81/0xa0 [ 56.023608] __local_bh_enable_ip+0x10a/0x110 [ 56.028080] ip_finish_output2+0x24f/0xa10 [ 56.032298] __ip_finish_output+0x11e/0x340 [ 56.036592] ? __ip_finish_output+0x11e/0x340 [ 56.041058] ? ip_output+0x184/0x260 [ 56.044750] ip_finish_output+0x27/0xa0 [ 56.048702] ip_output+0x79/0x260 [ 56.052134] ? __ip_finish_output+0x340/0x340 [ 56.056653] ip_local_out+0x3a/0x60 [ 56.060257] __ip_queue_xmit+0x1e4/0x600 [ 56.064300] ip_queue_xmit+0x10/0x20 [ 56.067988] dccp_transmit_skb+0x26e/0x420 [ 56.072201] dccp_xmit_packet+0x70/0x170 [ 56.076239] dccp_write_xmit+0x8d/0xb0 [ 56.080102] dccp_sendmsg+0x225/0x3a0 [ 56.083886] inet_sendmsg+0x5f/0x70 [ 56.087491] sock_sendmsg+0x57/0x60 [ 56.091094] ____sys_sendmsg+0x1fc/0x270 [ 56.095128] ? copy_msghdr_from_user+0x5b/0x90 [ 56.099696] ___sys_sendmsg+0x77/0xb0 [ 56.103823] ? find_held_lock+0x35/0xa0 [ 56.107773] ? __fget_files+0xe0/0x1e0 [ 56.111644] ? __fget_files+0xff/0x1e0 [ 56.115513] ? __fget_light+0x5e/0x70 [ 56.119292] __sys_sendmsg+0x5d/0xb0 [ 56.122993] ? do_syscall_64+0x13/0x80 [ 56.126857] __x64_sys_sendmsg+0x1a/0x20 [ 56.130890] do_syscall_64+0x37/0x80 [ 56.134577] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.139753] RIP: 0033:0x453009 [ 56.142920] 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 [ 56.161796] RSP: 002b:00007f5736fe8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.169479] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 2020/12/07 12:31:17 executed programs: 774 [ 56.176724] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.183980] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.191223] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.198467] R13: 00000000ffffffff R14: 00007f5736fe96d4 R15: 0000000000000002 [ 56.345013] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 56.358293] CPU: 1 PID: 7200 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 56.366184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.375531] Call Trace: [ 56.378191] [ 56.380321] dump_stack+0xa9/0xd1 [ 56.383764] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 56.388947] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 56.393615] dccp_deliver_input_to_ccids+0x31/0x70 [ 56.398549] dccp_rcv_established+0x49/0x70 [ 56.402869] dccp_v4_do_rcv+0x3b/0x60 [ 56.404685] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 56.406664] __sk_receive_skb+0xcc/0x2b0 [ 56.406677] dccp_v4_rcv+0x44b/0x820 [ 56.406692] ip_protocol_deliver_rcu+0x224/0x270 [ 56.432316] ip_local_deliver_finish+0x8d/0x130 [ 56.436963] ip_local_deliver+0x184/0x220 [ 56.441090] ? ip_protocol_deliver_rcu+0x270/0x270 [ 56.446000] ip_rcv_finish+0x3d/0x60 [ 56.449705] ip_rcv+0x162/0x210 [ 56.452964] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 56.458139] ? process_backlog+0xb1/0x2d0 [ 56.462265] __netif_receive_skb_one_core+0x81/0x90 [ 56.467260] __netif_receive_skb+0x13/0x60 [ 56.471471] process_backlog+0x122/0x2d0 [ 56.475513] net_rx_action+0x17d/0x4b0 [ 56.479388] __do_softirq+0xdc/0x452 [ 56.483084] ? ip_finish_output2+0x22b/0xa10 [ 56.488172] asm_call_irq_on_stack+0x12/0x20 [ 56.492563] [ 56.494782] do_softirq_own_stack+0x5c/0x70 [ 56.499086] do_softirq.part.21+0x81/0xa0 [ 56.503211] __local_bh_enable_ip+0x10a/0x110 [ 56.507685] ip_finish_output2+0x24f/0xa10 [ 56.511903] __ip_finish_output+0x11e/0x340 [ 56.516200] ? __ip_finish_output+0x11e/0x340 [ 56.520755] ? ip_output+0x184/0x260 [ 56.524448] ip_finish_output+0x27/0xa0 [ 56.528407] ip_output+0x79/0x260 [ 56.531840] ? __ip_finish_output+0x340/0x340 [ 56.536315] ip_local_out+0x3a/0x60 [ 56.539922] __ip_queue_xmit+0x1e4/0x600 [ 56.543968] ip_queue_xmit+0x10/0x20 [ 56.547662] dccp_transmit_skb+0x26e/0x420 [ 56.551876] dccp_xmit_packet+0x70/0x170 [ 56.555917] dccp_write_xmit+0x8d/0xb0 [ 56.559781] dccp_sendmsg+0x225/0x3a0 [ 56.563565] inet_sendmsg+0x5f/0x70 [ 56.567171] sock_sendmsg+0x57/0x60 [ 56.570776] ____sys_sendmsg+0x1fc/0x270 [ 56.574827] ? copy_msghdr_from_user+0x5b/0x90 [ 56.579395] ___sys_sendmsg+0x77/0xb0 [ 56.583180] ? find_held_lock+0x35/0xa0 [ 56.587136] ? __fget_files+0xe0/0x1e0 [ 56.591008] ? __fget_files+0xff/0x1e0 [ 56.594891] ? __fget_light+0x5e/0x70 [ 56.598672] __sys_sendmsg+0x5d/0xb0 [ 56.602372] ? do_syscall_64+0x13/0x80 [ 56.606244] __x64_sys_sendmsg+0x1a/0x20 [ 56.610299] do_syscall_64+0x37/0x80 [ 56.613991] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.619154] RIP: 0033:0x453009 [ 56.622322] 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 [ 56.641201] RSP: 002b:00007f4faa83bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.649232] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 56.656564] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.663824] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.671072] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.678316] R13: 00000000ffffffff R14: 00007f4faa83c6d4 R15: 0000000000000002 [ 56.685605] CPU: 0 PID: 7219 Comm: syz-executor5 Not tainted 5.10.0-rc7-syzkaller #0 [ 56.693482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.702830] Call Trace: [ 56.705404] [ 56.707543] dump_stack+0xa9/0xd1 [ 56.711001] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 56.716186] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 56.720872] dccp_deliver_input_to_ccids+0x31/0x70 [ 56.725796] dccp_rcv_established+0x49/0x70 [ 56.730113] dccp_v4_do_rcv+0x3b/0x60 [ 56.733907] __sk_receive_skb+0xcc/0x2b0 [ 56.737959] dccp_v4_rcv+0x44b/0x820 [ 56.741672] ip_protocol_deliver_rcu+0x224/0x270 [ 56.746410] ip_local_deliver_finish+0x8d/0x130 [ 56.751063] ip_local_deliver+0x184/0x220 [ 56.755191] ? ip_protocol_deliver_rcu+0x270/0x270 [ 56.760130] ip_rcv_finish+0x3d/0x60 [ 56.763847] ip_rcv+0x162/0x210 [ 56.767382] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 56.772654] ? process_backlog+0xb1/0x2d0 [ 56.776785] __netif_receive_skb_one_core+0x81/0x90 [ 56.781790] __netif_receive_skb+0x13/0x60 [ 56.786016] process_backlog+0x122/0x2d0 [ 56.790079] net_rx_action+0x17d/0x4b0 [ 56.793974] __do_softirq+0xdc/0x452 [ 56.797689] ? ip_finish_output2+0x22b/0xa10 [ 56.802094] asm_call_irq_on_stack+0x12/0x20 [ 56.806497] [ 56.808735] do_softirq_own_stack+0x5c/0x70 [ 56.813048] do_softirq.part.21+0x81/0xa0 [ 56.817194] __local_bh_enable_ip+0x10a/0x110 [ 56.821689] ip_finish_output2+0x24f/0xa10 [ 56.825936] __ip_finish_output+0x11e/0x340 [ 56.830249] ? __ip_finish_output+0x11e/0x340 [ 56.834730] ? ip_output+0x184/0x260 [ 56.838438] ip_finish_output+0x27/0xa0 [ 56.842412] ip_output+0x79/0x260 [ 56.845865] ? __ip_finish_output+0x340/0x340 [ 56.850351] ip_local_out+0x3a/0x60 [ 56.854064] __ip_queue_xmit+0x1e4/0x600 [ 56.858145] ip_queue_xmit+0x10/0x20 [ 56.861845] dccp_transmit_skb+0x26e/0x420 [ 56.866063] dccp_xmit_packet+0x70/0x170 [ 56.870105] dccp_write_xmit+0x8d/0xb0 [ 56.873968] dccp_sendmsg+0x225/0x3a0 [ 56.877749] inet_sendmsg+0x5f/0x70 [ 56.881353] sock_sendmsg+0x57/0x60 [ 56.885023] ____sys_sendmsg+0x1fc/0x270 [ 56.889072] ? copy_msghdr_from_user+0x5b/0x90 [ 56.893636] ___sys_sendmsg+0x77/0xb0 [ 56.897416] ? find_held_lock+0x35/0xa0 [ 56.901409] ? __fget_files+0xe0/0x1e0 [ 56.905400] ? __fget_files+0xff/0x1e0 [ 56.909275] ? __fget_light+0x5e/0x70 [ 56.913072] __sys_sendmsg+0x5d/0xb0 [ 56.916768] ? do_syscall_64+0x13/0x80 [ 56.920636] __x64_sys_sendmsg+0x1a/0x20 [ 56.924671] do_syscall_64+0x37/0x80 [ 56.928374] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.933539] RIP: 0033:0x453009 [ 56.936707] 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 [ 56.955586] RSP: 002b:00007f8121477c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.963282] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 56.970533] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.977777] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.985023] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.992269] R13: 00000000ffffffff R14: 00007f81214786d4 R15: 0000000000000002 [ 57.187999] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 57.201321] CPU: 1 PID: 7378 Comm: syz-executor Not tainted 5.10.0-rc7-syzkaller #0 [ 57.209109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.218532] Call Trace: [ 57.221099] [ 57.223249] dump_stack+0xa9/0xd1 [ 57.226714] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 57.231908] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 57.236841] dccp_deliver_input_to_ccids+0x31/0x70 [ 57.241768] dccp_rcv_established+0x49/0x70 [ 57.246087] dccp_v4_do_rcv+0x3b/0x60 [ 57.249890] __sk_receive_skb+0xcc/0x2b0 [ 57.253959] dccp_v4_rcv+0x44b/0x820 [ 57.257677] ip_protocol_deliver_rcu+0x224/0x270 [ 57.262435] ip_local_deliver_finish+0x8d/0x130 [ 57.267099] ip_local_deliver+0x184/0x220 [ 57.271242] ? ip_protocol_deliver_rcu+0x270/0x270 [ 57.276184] ip_rcv_finish+0x3d/0x60 [ 57.279892] ip_rcv+0x162/0x210 [ 57.283168] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 57.288359] ? process_backlog+0xb1/0x2d0 [ 57.292501] __netif_receive_skb_one_core+0x81/0x90 [ 57.297515] __netif_receive_skb+0x13/0x60 [ 57.301749] process_backlog+0x122/0x2d0 [ 57.305818] net_rx_action+0x17d/0x4b0 [ 57.309717] __do_softirq+0xdc/0x452 [ 57.313440] ? ip_finish_output2+0x22b/0xa10 [ 57.317850] asm_call_irq_on_stack+0x12/0x20 [ 57.322245] [ 57.324469] do_softirq_own_stack+0x5c/0x70 [ 57.328769] do_softirq.part.21+0x81/0xa0 [ 57.332892] __local_bh_enable_ip+0x10a/0x110 [ 57.337363] ip_finish_output2+0x24f/0xa10 [ 57.341581] __ip_finish_output+0x11e/0x340 [ 57.345900] ? __ip_finish_output+0x11e/0x340 [ 57.350414] ? ip_output+0x184/0x260 [ 57.354110] ip_finish_output+0x27/0xa0 [ 57.358076] ip_output+0x79/0x260 [ 57.361518] ? __ip_finish_output+0x340/0x340 [ 57.365999] ip_local_out+0x3a/0x60 [ 57.369705] __ip_queue_xmit+0x1e4/0x600 [ 57.373747] ip_queue_xmit+0x10/0x20 [ 57.377460] dccp_transmit_skb+0x26e/0x420 [ 57.381671] dccp_xmit_packet+0x70/0x170 [ 57.385749] dccp_write_xmit+0x8d/0xb0 [ 57.389613] dccp_sendmsg+0x225/0x3a0 [ 57.393394] inet_sendmsg+0x5f/0x70 [ 57.397087] sock_sendmsg+0x57/0x60 [ 57.400690] ____sys_sendmsg+0x1fc/0x270 [ 57.404726] ? copy_msghdr_from_user+0x5b/0x90 [ 57.409290] ___sys_sendmsg+0x77/0xb0 [ 57.413085] ? find_held_lock+0x35/0xa0 [ 57.417390] ? __fget_files+0xe0/0x1e0 [ 57.421259] ? __fget_files+0xff/0x1e0 [ 57.425123] ? __fget_light+0x5e/0x70 [ 57.428902] __sys_sendmsg+0x5d/0xb0 [ 57.432683] ? do_syscall_64+0x13/0x80 [ 57.436563] __x64_sys_sendmsg+0x1a/0x20 [ 57.440604] do_syscall_64+0x37/0x80 [ 57.444291] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.449455] RIP: 0033:0x453009 [ 57.452640] 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 [ 57.471521] RSP: 002b:00007fe8af2c2c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.479211] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 57.486456] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.493701] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.500947] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.508196] R13: 00000000ffffffff R14: 00007fe8af2c36d4 R15: 0000000000000002 [ 57.521222] net_ratelimit: 392 callbacks suppressed [ 57.521225] dccp_close: ABORT with 24 bytes unread [ 57.562999] dccp_close: ABORT with 24 bytes unread [ 57.565468] dccp_close: ABORT with 24 bytes unread [ 57.570115] dccp_close: ABORT with 24 bytes unread [ 57.576072] dccp_close: ABORT with 24 bytes unread [ 57.585611] dccp_close: ABORT with 24 bytes unread [ 57.589416] dccp_close: ABORT with 578 bytes unread [ 57.597714] dccp_close: ABORT with 24 bytes unread [ 57.614064] dccp_close: ABORT with 24 bytes unread [ 57.622988] dccp_close: ABORT with 24 bytes unread [ 57.630523] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 57.643845] CPU: 0 PID: 7465 Comm: syz-executor2 Not tainted 5.10.0-rc7-syzkaller #0 [ 57.652162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.661506] Call Trace: [ 57.664081] [ 57.666229] dump_stack+0xa9/0xd1 [ 57.669690] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 57.674885] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 57.679553] dccp_deliver_input_to_ccids+0x31/0x70 [ 57.684482] dccp_rcv_established+0x49/0x70 [ 57.688806] dccp_v4_do_rcv+0x3b/0x60 [ 57.692607] __sk_receive_skb+0xcc/0x2b0 [ 57.696671] dccp_v4_rcv+0x44b/0x820 [ 57.700472] ip_protocol_deliver_rcu+0x224/0x270 [ 57.705250] ip_local_deliver_finish+0x8d/0x130 [ 57.709913] ip_local_deliver+0x184/0x220 [ 57.714068] ? ip_protocol_deliver_rcu+0x270/0x270 [ 57.719001] ip_rcv_finish+0x3d/0x60 [ 57.722712] ip_rcv+0x162/0x210 [ 57.725987] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 57.731179] ? process_backlog+0xb1/0x2d0 [ 57.735323] __netif_receive_skb_one_core+0x81/0x90 [ 57.740342] __netif_receive_skb+0x13/0x60 [ 57.744572] process_backlog+0x122/0x2d0 [ 57.748631] net_rx_action+0x17d/0x4b0 [ 57.752521] __do_softirq+0xdc/0x452 [ 57.756241] ? ip_finish_output2+0x22b/0xa10 [ 57.760638] asm_call_irq_on_stack+0x12/0x20 [ 57.765019] [ 57.767232] do_softirq_own_stack+0x5c/0x70 [ 57.771529] do_softirq.part.21+0x81/0xa0 [ 57.775659] __local_bh_enable_ip+0x10a/0x110 [ 57.780136] ip_finish_output2+0x24f/0xa10 [ 57.784354] __ip_finish_output+0x11e/0x340 [ 57.788650] ? __ip_finish_output+0x11e/0x340 [ 57.793167] ? ip_output+0x184/0x260 [ 57.796904] ip_finish_output+0x27/0xa0 [ 57.800856] ip_output+0x79/0x260 [ 57.804335] ? __ip_finish_output+0x340/0x340 [ 57.808856] ip_local_out+0x3a/0x60 [ 57.812464] __ip_queue_xmit+0x1e4/0x600 [ 57.816510] ip_queue_xmit+0x10/0x20 [ 57.820199] dccp_transmit_skb+0x26e/0x420 [ 57.824411] dccp_xmit_packet+0x70/0x170 [ 57.828452] dccp_write_xmit+0x8d/0xb0 [ 57.832353] dccp_sendmsg+0x225/0x3a0 [ 57.836145] inet_sendmsg+0x5f/0x70 [ 57.839749] sock_sendmsg+0x57/0x60 [ 57.843353] ____sys_sendmsg+0x1fc/0x270 [ 57.847388] ? copy_msghdr_from_user+0x5b/0x90 [ 57.851957] ___sys_sendmsg+0x77/0xb0 [ 57.855738] ? find_held_lock+0x35/0xa0 [ 57.859690] ? __fget_files+0xe0/0x1e0 [ 57.863559] ? __fget_files+0xff/0x1e0 [ 57.867432] ? __fget_light+0x5e/0x70 [ 57.871738] __sys_sendmsg+0x5d/0xb0 [ 57.875454] ? do_syscall_64+0x13/0x80 [ 57.879327] __x64_sys_sendmsg+0x1a/0x20 [ 57.883375] do_syscall_64+0x37/0x80 [ 57.887067] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.892292] RIP: 0033:0x453009 [ 57.895471] 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