Warning: Permanently added '10.128.1.9' (ECDSA) to the list of known hosts. 2021/01/07 13:56:45 parsed 1 programs 2021/01/07 13:56:45 executed programs: 0 [ 39.469005] ip (3462) used greatest stack depth: 11272 bytes left [ 40.398510] audit: type=1400 audit(1610027806.844:10): avc: denied { create } for pid=4039 comm="syz-executor5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 40.435262] dccp_close: ABORT with 24 bytes unread [ 40.441969] audit: type=1400 audit(1610027806.848:11): avc: denied { name_bind } for pid=4042 comm="syz-executor1" src=20004 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 40.467292] dccp_close: ABORT with 24 bytes unread [ 40.483132] dccp_close: ABORT with 24 bytes unread [ 40.487539] dccp_close: ABORT with 24 bytes unread [ 40.506486] audit: type=1400 audit(1610027806.848:12): avc: denied { node_bind } for pid=4042 comm="syz-executor1" src=20004 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 [ 40.507379] dccp_close: ABORT with 24 bytes unread [ 40.529178] audit: type=1400 audit(1610027806.849:13): avc: denied { name_connect } for pid=4042 comm="syz-executor1" dest=20004 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 40.563309] dccp_close: ABORT with 24 bytes unread [ 40.571726] dccp_close: ABORT with 24 bytes unread [ 40.583892] dccp_close: ABORT with 24 bytes unread [ 40.586427] audit: type=1400 audit(1610027806.859:14): avc: denied { write } for pid=4042 comm="syz-executor1" path="socket:[15122]" dev="sockfs" ino=15122 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 40.603065] dccp_close: ABORT with 24 bytes unread [ 40.627018] dccp_close: ABORT with 24 bytes unread [ 40.753311] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 40.768019] CPU: 0 PID: 4176 Comm: syz-executor2 Not tainted 5.11.0-rc2-syzkaller #0 [ 40.776201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.786108] Call Trace: [ 40.788682] [ 40.791157] dump_stack+0xa9/0xd1 [ 40.794850] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 40.800313] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 40.805371] dccp_deliver_input_to_ccids+0x31/0x70 [ 40.810471] dccp_rcv_established+0x49/0x70 [ 40.815276] dccp_v4_do_rcv+0x3b/0x60 [ 40.819161] __sk_receive_skb+0xcc/0x2b0 [ 40.823334] dccp_v4_rcv+0x44b/0x820 [ 40.827047] ip_protocol_deliver_rcu+0x224/0x270 [ 40.832129] ip_local_deliver_finish+0x8d/0x130 [ 40.837760] ip_local_deliver+0x184/0x220 [ 40.842366] ? ip_protocol_deliver_rcu+0x270/0x270 [ 40.847673] ip_rcv_finish+0x3d/0x60 [ 40.852943] ip_rcv+0x162/0x210 [ 40.856393] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 40.861710] ? process_backlog+0xb1/0x2d0 [ 40.866029] __netif_receive_skb_one_core+0x81/0x90 [ 40.871153] __netif_receive_skb+0x13/0x60 [ 40.875735] process_backlog+0x122/0x2d0 [ 40.879798] net_rx_action+0x17d/0x4f0 [ 40.883875] __do_softirq+0xdc/0x452 [ 40.887584] ? ip_finish_output2+0x22b/0xa10 [ 40.892132] asm_call_irq_on_stack+0x12/0x20 [ 40.896903] [ 40.899134] do_softirq_own_stack+0x5c/0x70 [ 40.903638] do_softirq+0x75/0xb0 [ 40.907100] __local_bh_enable_ip+0x10a/0x110 [ 40.911683] ip_finish_output2+0x24f/0xa10 [ 40.916027] __ip_finish_output+0x11e/0x340 [ 40.920339] ? __ip_finish_output+0x11e/0x340 [ 40.924827] ? ip_output+0x184/0x260 [ 40.928660] ip_finish_output+0x27/0xa0 [ 40.932714] ip_output+0x79/0x260 [ 40.936171] ? __ip_finish_output+0x340/0x340 [ 40.940847] ip_local_out+0x3a/0x60 [ 40.944759] __ip_queue_xmit+0x1e4/0x600 [ 40.949136] ip_queue_xmit+0x10/0x20 [ 40.953013] dccp_transmit_skb+0x26e/0x420 [ 40.957513] dccp_xmit_packet+0x70/0x170 [ 40.961844] dccp_write_xmit+0x8d/0xb0 [ 40.965854] dccp_sendmsg+0x225/0x3a0 [ 40.969767] inet_sendmsg+0x5f/0x70 [ 40.973585] sock_sendmsg+0x57/0x60 [ 40.977283] ____sys_sendmsg+0x1fc/0x270 [ 40.981427] ? copy_msghdr_from_user+0x5b/0x90 [ 40.986295] ? __lock_acquire+0x4e0/0x17e0 [ 40.994314] ___sys_sendmsg+0x77/0xb0 [ 40.998316] ? find_held_lock+0x35/0xa0 [ 41.002573] ? __fget_files+0xcc/0x1b0 [ 41.006692] ? __fget_files+0xeb/0x1b0 [ 41.010678] ? __fget_light+0x5e/0x70 [ 41.014560] __sys_sendmsg+0x5d/0xb0 [ 41.018574] ? do_syscall_64+0x13/0x80 [ 41.022894] __x64_sys_sendmsg+0x1a/0x20 [ 41.027178] do_syscall_64+0x37/0x80 [ 41.030885] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.036947] RIP: 0033:0x453009 [ 41.040199] 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 [ 41.060184] RSP: 002b:00007f38c698fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 41.068889] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 41.077191] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 41.084707] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 41.092188] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 41.099921] R13: 00000000ffffffff R14: 00007f38c69906d4 R15: 0000000000000002 [ 41.202372] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 41.217105] CPU: 1 PID: 4236 Comm: syz-executor5 Not tainted 5.11.0-rc2-syzkaller #0 [ 41.225346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.235061] Call Trace: [ 41.237640] [ 41.239981] dump_stack+0xa9/0xd1 [ 41.243471] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 41.248883] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 41.250301] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 41.253556] dccp_deliver_input_to_ccids+0x31/0x70 [ 41.253570] dccp_rcv_established+0x49/0x70 [ 41.253578] dccp_v4_do_rcv+0x3b/0x60 [ 41.253586] __sk_receive_skb+0xcc/0x2b0 [ 41.253599] dccp_v4_rcv+0x44b/0x820 [ 41.253612] ip_protocol_deliver_rcu+0x224/0x270 [ 41.293112] ip_local_deliver_finish+0x8d/0x130 [ 41.297787] ip_local_deliver+0x184/0x220 [ 41.302033] ? ip_protocol_deliver_rcu+0x270/0x270 [ 41.307172] ip_rcv_finish+0x3d/0x60 [ 41.310879] ip_rcv+0x162/0x210 [ 41.314174] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 41.319354] ? process_backlog+0xb1/0x2d0 [ 41.323599] __netif_receive_skb_one_core+0x81/0x90 [ 41.328829] __netif_receive_skb+0x13/0x60 [ 41.333064] process_backlog+0x122/0x2d0 [ 41.337164] net_rx_action+0x17d/0x4f0 [ 41.341062] __do_softirq+0xdc/0x452 [ 41.344855] ? ip_finish_output2+0x22b/0xa10 [ 41.349340] asm_call_irq_on_stack+0x12/0x20 [ 41.353737] [ 41.355960] do_softirq_own_stack+0x5c/0x70 [ 41.360266] do_softirq+0x75/0xb0 [ 41.363860] __local_bh_enable_ip+0x10a/0x110 [ 41.368363] ip_finish_output2+0x24f/0xa10 [ 41.372601] __ip_finish_output+0x11e/0x340 [ 41.376958] ? __ip_finish_output+0x11e/0x340 [ 41.382391] ? ip_output+0x184/0x260 [ 41.386204] ip_finish_output+0x27/0xa0 [ 41.390256] ip_output+0x79/0x260 [ 41.393699] ? __ip_finish_output+0x340/0x340 [ 41.398193] ip_local_out+0x3a/0x60 [ 41.401828] __ip_queue_xmit+0x1e4/0x600 [ 41.405993] ip_queue_xmit+0x10/0x20 [ 41.409698] dccp_transmit_skb+0x26e/0x420 [ 41.414009] dccp_xmit_packet+0x70/0x170 [ 41.418171] dccp_write_xmit+0x8d/0xb0 [ 41.422066] dccp_sendmsg+0x225/0x3a0 [ 41.425988] inet_sendmsg+0x5f/0x70 [ 41.429945] sock_sendmsg+0x57/0x60 [ 41.433654] ____sys_sendmsg+0x1fc/0x270 [ 41.437767] ? copy_msghdr_from_user+0x5b/0x90 [ 41.442751] ? __lock_acquire+0x4e0/0x17e0 [ 41.447095] ___sys_sendmsg+0x77/0xb0 [ 41.450893] ? find_held_lock+0x35/0xa0 [ 41.454959] ? __fget_files+0xcc/0x1b0 [ 41.458953] ? __fget_files+0xeb/0x1b0 [ 41.463000] ? __fget_light+0x5e/0x70 [ 41.466977] __sys_sendmsg+0x5d/0xb0 [ 41.470695] ? do_syscall_64+0x13/0x80 [ 41.474568] __x64_sys_sendmsg+0x1a/0x20 [ 41.478611] do_syscall_64+0x37/0x80 [ 41.482330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.487498] RIP: 0033:0x453009 [ 41.490679] 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 [ 41.509557] RSP: 002b:00007f10e5170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 41.517340] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 41.524592] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 41.531954] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 41.539212] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 41.546461] R13: 00000000ffffffff R14: 00007f10e51716d4 R15: 0000000000000002 [ 41.553732] CPU: 0 PID: 4243 Comm: syz-executor3 Not tainted 5.11.0-rc2-syzkaller #0 [ 41.561619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.571158] Call Trace: [ 41.574019] [ 41.576209] dump_stack+0xa9/0xd1 [ 41.579675] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 41.584957] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 41.589635] dccp_deliver_input_to_ccids+0x31/0x70 [ 41.594747] dccp_rcv_established+0x49/0x70 [ 41.599254] dccp_v4_do_rcv+0x3b/0x60 [ 41.603150] __sk_receive_skb+0xcc/0x2b0 [ 41.607221] dccp_v4_rcv+0x44b/0x820 [ 41.610991] ip_protocol_deliver_rcu+0x224/0x270 [ 41.615942] ip_local_deliver_finish+0x8d/0x130 [ 41.620625] ip_local_deliver+0x184/0x220 [ 41.624787] ? ip_protocol_deliver_rcu+0x270/0x270 [ 41.629913] ip_rcv_finish+0x3d/0x60 [ 41.633756] ip_rcv+0x162/0x210 [ 41.636908] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 41.637139] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 41.655549] ? process_backlog+0xb1/0x2d0 [ 41.659718] __netif_receive_skb_one_core+0x81/0x90 [ 41.664815] __netif_receive_skb+0x13/0x60 [ 41.669030] process_backlog+0x122/0x2d0 [ 41.673084] net_rx_action+0x17d/0x4f0 [ 41.677015] __do_softirq+0xdc/0x452 [ 41.680727] ? ip_finish_output2+0x22b/0xa10 [ 41.685136] asm_call_irq_on_stack+0x12/0x20 [ 41.689624] [ 41.691861] do_softirq_own_stack+0x5c/0x70 [ 41.696280] do_softirq+0x75/0xb0 [ 41.699731] __local_bh_enable_ip+0x10a/0x110 [ 41.704209] ip_finish_output2+0x24f/0xa10 [ 41.708435] __ip_finish_output+0x11e/0x340 [ 41.712742] ? __ip_finish_output+0x11e/0x340 [ 41.717307] ? ip_output+0x184/0x260 [ 41.721115] ip_finish_output+0x27/0xa0 [ 41.725084] ip_output+0x79/0x260 [ 41.728538] ? __ip_finish_output+0x340/0x340 [ 41.733021] ip_local_out+0x3a/0x60 [ 41.736639] __ip_queue_xmit+0x1e4/0x600 [ 41.741084] ip_queue_xmit+0x10/0x20 [ 41.744983] dccp_transmit_skb+0x26e/0x420 [ 41.749212] dccp_xmit_packet+0x70/0x170 [ 41.753257] dccp_write_xmit+0x8d/0xb0 [ 41.757125] dccp_sendmsg+0x225/0x3a0 [ 41.760914] inet_sendmsg+0x5f/0x70 [ 41.764544] sock_sendmsg+0x57/0x60 [ 41.768162] ____sys_sendmsg+0x1fc/0x270 [ 41.772215] ? copy_msghdr_from_user+0x5b/0x90 [ 41.776789] ? __lock_acquire+0x4e0/0x17e0 [ 41.781015] ___sys_sendmsg+0x77/0xb0 [ 41.784801] ? find_held_lock+0x35/0xa0 [ 41.788931] ? __fget_files+0xcc/0x1b0 [ 41.792845] ? __fget_files+0xeb/0x1b0 [ 41.796720] ? __fget_light+0x5e/0x70 [ 41.800716] __sys_sendmsg+0x5d/0xb0 [ 41.804427] ? do_syscall_64+0x13/0x80 [ 41.808304] __x64_sys_sendmsg+0x1a/0x20 [ 41.812431] do_syscall_64+0x37/0x80 [ 41.816124] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.821294] RIP: 0033:0x453009 [ 41.824469] 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 [ 41.843358] RSP: 002b:00007f3daa622c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 41.851049] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 41.858297] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 41.865547] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 41.873063] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 41.880314] R13: 00000000ffffffff R14: 00007f3daa6236d4 R15: 0000000000000002 [ 41.887758] CPU: 1 PID: 4269 Comm: syz-executor4 Not tainted 5.11.0-rc2-syzkaller #0 [ 41.895643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.905165] Call Trace: [ 41.907951] [ 41.910219] dump_stack+0xa9/0xd1 [ 41.913773] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 41.918965] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 41.923925] dccp_deliver_input_to_ccids+0x31/0x70 [ 41.928865] dccp_rcv_established+0x49/0x70 [ 41.933341] dccp_v4_do_rcv+0x3b/0x60 [ 41.937146] __sk_receive_skb+0xcc/0x2b0 [ 41.941215] dccp_v4_rcv+0x44b/0x820 [ 41.944945] ip_protocol_deliver_rcu+0x224/0x270 [ 41.949714] ip_local_deliver_finish+0x8d/0x130 [ 41.954389] ip_local_deliver+0x184/0x220 [ 41.958640] ? ip_protocol_deliver_rcu+0x270/0x270 [ 41.963585] ip_rcv_finish+0x3d/0x60 [ 41.967394] ip_rcv+0x162/0x210 [ 41.970804] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 41.976004] ? process_backlog+0xb1/0x2d0 [ 41.980176] __netif_receive_skb_one_core+0x81/0x90 [ 41.985620] __netif_receive_skb+0x13/0x60 [ 41.989988] process_backlog+0x122/0x2d0 [ 41.993537] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 41.994144] net_rx_action+0x17d/0x4f0 [ 42.011310] __do_softirq+0xdc/0x452 [ 42.015142] ? ip_finish_output2+0x22b/0xa10 [ 42.019540] asm_call_irq_on_stack+0x12/0x20 [ 42.023930] [ 42.026143] do_softirq_own_stack+0x5c/0x70 [ 42.030530] do_softirq+0x75/0xb0 [ 42.033963] __local_bh_enable_ip+0x10a/0x110 [ 42.038440] ip_finish_output2+0x24f/0xa10 [ 42.042751] __ip_finish_output+0x11e/0x340 [ 42.047243] ? __ip_finish_output+0x11e/0x340 [ 42.051860] ? ip_output+0x184/0x260 [ 42.055560] ip_finish_output+0x27/0xa0 [ 42.059518] ip_output+0x79/0x260 [ 42.062978] ? __ip_finish_output+0x340/0x340 [ 42.067456] ip_local_out+0x3a/0x60 [ 42.071067] __ip_queue_xmit+0x1e4/0x600 [ 42.075120] ip_queue_xmit+0x10/0x20 [ 42.078918] dccp_transmit_skb+0x26e/0x420 [ 42.083316] dccp_xmit_packet+0x70/0x170 [ 42.087448] dccp_write_xmit+0x8d/0xb0 [ 42.091411] dccp_sendmsg+0x225/0x3a0 [ 42.095219] inet_sendmsg+0x5f/0x70 [ 42.098856] sock_sendmsg+0x57/0x60 [ 42.102999] ____sys_sendmsg+0x1fc/0x270 [ 42.107040] ? copy_msghdr_from_user+0x5b/0x90 [ 42.111611] ? __lock_acquire+0x4e0/0x17e0 [ 42.115849] ___sys_sendmsg+0x77/0xb0 [ 42.119727] ? find_held_lock+0x35/0xa0 [ 42.123682] ? __fget_files+0xcc/0x1b0 [ 42.127584] ? __fget_files+0xeb/0x1b0 [ 42.131601] ? __fget_light+0x5e/0x70 [ 42.135502] __sys_sendmsg+0x5d/0xb0 [ 42.139211] ? do_syscall_64+0x13/0x80 [ 42.143099] __x64_sys_sendmsg+0x1a/0x20 [ 42.147145] do_syscall_64+0x37/0x80 [ 42.150839] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.156096] RIP: 0033:0x453009 [ 42.159271] 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 [ 42.178313] RSP: 002b:00007f4c7f24cc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 42.186282] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 42.193694] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 42.201259] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 42.208605] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 42.216500] R13: 00000000ffffffff R14: 00007f4c7f24d6d4 R15: 0000000000000002 [ 42.223776] CPU: 0 PID: 4294 Comm: syz-executor1 Not tainted 5.11.0-rc2-syzkaller #0 [ 42.231667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.241111] Call Trace: [ 42.243693] [ 42.245867] dump_stack+0xa9/0xd1 [ 42.249464] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 42.254924] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 42.259903] dccp_deliver_input_to_ccids+0x31/0x70 [ 42.264851] dccp_rcv_established+0x49/0x70 [ 42.269276] dccp_v4_do_rcv+0x3b/0x60 [ 42.273178] __sk_receive_skb+0xcc/0x2b0 [ 42.277243] dccp_v4_rcv+0x44b/0x820 [ 42.280962] ip_protocol_deliver_rcu+0x224/0x270 [ 42.285958] ip_local_deliver_finish+0x8d/0x130 [ 42.290733] ip_local_deliver+0x184/0x220 [ 42.294888] ? ip_protocol_deliver_rcu+0x270/0x270 [ 42.299924] ip_rcv_finish+0x3d/0x60 [ 42.303640] ip_rcv+0x162/0x210 [ 42.306928] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 42.311066] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 42.312382] ? process_backlog+0xb1/0x2d0 [ 42.312392] __netif_receive_skb_one_core+0x81/0x90 [ 42.312403] __netif_receive_skb+0x13/0x60 [ 42.312411] process_backlog+0x122/0x2d0 [ 42.312425] net_rx_action+0x17d/0x4f0 [ 42.312443] __do_softirq+0xdc/0x452 [ 42.351034] ? ip_finish_output2+0x22b/0xa10 [ 42.355443] asm_call_irq_on_stack+0x12/0x20 [ 42.359850] [ 42.362075] do_softirq_own_stack+0x5c/0x70 [ 42.366375] do_softirq+0x75/0xb0 [ 42.369809] __local_bh_enable_ip+0x10a/0x110 [ 42.374285] ip_finish_output2+0x24f/0xa10 [ 42.378785] __ip_finish_output+0x11e/0x340 [ 42.383185] ? __ip_finish_output+0x11e/0x340 [ 42.387950] ? ip_output+0x184/0x260 [ 42.391674] ip_finish_output+0x27/0xa0 [ 42.395724] ip_output+0x79/0x260 [ 42.399182] ? __ip_finish_output+0x340/0x340 [ 42.403678] ip_local_out+0x3a/0x60 [ 42.407288] __ip_queue_xmit+0x1e4/0x600 [ 42.411336] ip_queue_xmit+0x10/0x20 [ 42.415137] dccp_transmit_skb+0x26e/0x420 [ 42.419471] dccp_xmit_packet+0x70/0x170 [ 42.423517] dccp_write_xmit+0x8d/0xb0 [ 42.427501] dccp_sendmsg+0x225/0x3a0 [ 42.431291] inet_sendmsg+0x5f/0x70 [ 42.434901] sock_sendmsg+0x57/0x60 [ 42.438610] ____sys_sendmsg+0x1fc/0x270 [ 42.442650] ? copy_msghdr_from_user+0x5b/0x90 [ 42.447216] ? __lock_acquire+0x4e0/0x17e0 [ 42.451633] ___sys_sendmsg+0x77/0xb0 [ 42.455444] ? find_held_lock+0x35/0xa0 [ 42.459496] ? __fget_files+0xcc/0x1b0 [ 42.463635] ? __fget_files+0xeb/0x1b0 [ 42.467508] ? __fget_light+0x5e/0x70 [ 42.471388] __sys_sendmsg+0x5d/0xb0 [ 42.475093] ? do_syscall_64+0x13/0x80 [ 42.478981] __x64_sys_sendmsg+0x1a/0x20 [ 42.483024] do_syscall_64+0x37/0x80 [ 42.486730] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.491898] RIP: 0033:0x453009 [ 42.495073] 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 [ 42.514316] RSP: 002b:00007fe0d0b46c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 42.522113] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 42.529363] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 42.536972] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 42.544588] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 42.551837] R13: 00000000ffffffff R14: 00007fe0d0b476d4 R15: 0000000000000002 [ 42.559281] CPU: 1 PID: 4321 Comm: syz-executor Not tainted 5.11.0-rc2-syzkaller #0 [ 42.567449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.576812] Call Trace: [ 42.579401] [ 42.581661] dump_stack+0xa9/0xd1 [ 42.585118] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 42.590320] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 42.595052] dccp_deliver_input_to_ccids+0x31/0x70 [ 42.600077] dccp_rcv_established+0x49/0x70 [ 42.604461] dccp_v4_do_rcv+0x3b/0x60 [ 42.608282] __sk_receive_skb+0xcc/0x2b0 [ 42.612385] dccp_v4_rcv+0x44b/0x820 [ 42.616196] ip_protocol_deliver_rcu+0x224/0x270 [ 42.621000] ip_local_deliver_finish+0x8d/0x130 [ 42.625688] ip_local_deliver+0x184/0x220 [ 42.629937] ? ip_protocol_deliver_rcu+0x270/0x270 [ 42.634892] ip_rcv_finish+0x3d/0x60 [ 42.638614] ip_rcv+0x162/0x210 [ 42.641902] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 42.647184] ? process_backlog+0xb1/0x2d0 [ 42.651506] __netif_receive_skb_one_core+0x81/0x90 [ 42.656706] __netif_receive_skb+0x13/0x60 [ 42.660955] process_backlog+0x122/0x2d0 [ 42.665378] net_rx_action+0x17d/0x4f0 [ 42.669372] __do_softirq+0xdc/0x452 [ 42.673142] ? ip_finish_output2+0x22b/0xa10 [ 42.677574] asm_call_irq_on_stack+0x12/0x20 [ 42.682094] [ 42.684328] do_softirq_own_stack+0x5c/0x70 [ 42.688821] do_softirq+0x75/0xb0 [ 42.692363] __local_bh_enable_ip+0x10a/0x110 [ 42.697272] ip_finish_output2+0x24f/0xa10 [ 42.701511] __ip_finish_output+0x11e/0x340 [ 42.705816] ? __ip_finish_output+0x11e/0x340 [ 42.710558] ? ip_output+0x184/0x260 [ 42.714472] ip_finish_output+0x27/0xa0 [ 42.718441] ip_output+0x79/0x260 [ 42.721895] ? __ip_finish_output+0x340/0x340 [ 42.726378] ip_local_out+0x3a/0x60 [ 42.729999] __ip_queue_xmit+0x1e4/0x600 [ 42.734050] ip_queue_xmit+0x10/0x20 [ 42.737746] dccp_transmit_skb+0x26e/0x420 [ 42.741984] dccp_xmit_packet+0x70/0x170 [ 42.746028] dccp_write_xmit+0x8d/0xb0 [ 42.749899] dccp_sendmsg+0x225/0x3a0 [ 42.753773] inet_sendmsg+0x5f/0x70 [ 42.757400] sock_sendmsg+0x57/0x60 [ 42.761011] ____sys_sendmsg+0x1fc/0x270 [ 42.765053] ? copy_msghdr_from_user+0x5b/0x90 [ 42.769826] ? __lock_acquire+0x4e0/0x17e0 [ 42.774054] ___sys_sendmsg+0x77/0xb0 [ 42.777848] ? find_held_lock+0x35/0xa0 [ 42.781807] ? __fget_files+0xcc/0x1b0 [ 42.785786] ? __fget_files+0xeb/0x1b0 [ 42.789846] ? __fget_light+0x5e/0x70 [ 42.793655] __sys_sendmsg+0x5d/0xb0 [ 42.797466] ? do_syscall_64+0x13/0x80 [ 42.801362] __x64_sys_sendmsg+0x1a/0x20 [ 42.805405] do_syscall_64+0x37/0x80 [ 42.809129] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.814587] RIP: 0033:0x453009 [ 42.817852] 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 [ 42.837194] RSP: 002b:00007f35c084ec58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 42.844902] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 42.852344] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 42.860032] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 42.867368] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 42.874628] R13: 00000000ffffffff R14: 00007f35c084f6d4 R15: 0000000000000002 [ 42.993787] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 43.007053] CPU: 0 PID: 4425 Comm: syz-executor4 Not tainted 5.11.0-rc2-syzkaller #0 [ 43.014941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.024308] Call Trace: [ 43.026919] [ 43.029083] dump_stack+0xa9/0xd1 [ 43.032546] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 43.037759] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 43.042441] dccp_deliver_input_to_ccids+0x31/0x70 [ 43.047386] dccp_rcv_established+0x49/0x70 [ 43.051805] dccp_v4_do_rcv+0x3b/0x60 [ 43.054308] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 43.055610] __sk_receive_skb+0xcc/0x2b0 [ 43.055626] dccp_v4_rcv+0x44b/0x820 [ 43.055642] ip_protocol_deliver_rcu+0x224/0x270 [ 43.055655] ip_local_deliver_finish+0x8d/0x130 [ 43.055662] ip_local_deliver+0x184/0x220 [ 43.090308] ? ip_protocol_deliver_rcu+0x270/0x270 [ 43.095310] ip_rcv_finish+0x3d/0x60 [ 43.099227] ip_rcv+0x162/0x210 [ 43.102493] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 43.107665] ? process_backlog+0xb1/0x2d0 [ 43.111794] __netif_receive_skb_one_core+0x81/0x90 [ 43.116816] __netif_receive_skb+0x13/0x60 [ 43.121125] process_backlog+0x122/0x2d0 [ 43.125179] net_rx_action+0x17d/0x4f0 [ 43.129076] __do_softirq+0xdc/0x452 [ 43.132860] ? ip_finish_output2+0x22b/0xa10 [ 43.137260] asm_call_irq_on_stack+0x12/0x20 [ 43.141736] [ 43.143954] do_softirq_own_stack+0x5c/0x70 [ 43.148263] do_softirq+0x75/0xb0 [ 43.151872] __local_bh_enable_ip+0x10a/0x110 [ 43.156442] ip_finish_output2+0x24f/0xa10 [ 43.160711] __ip_finish_output+0x11e/0x340 [ 43.165042] ? __ip_finish_output+0x11e/0x340 [ 43.169521] ? ip_output+0x184/0x260 [ 43.173427] ip_finish_output+0x27/0xa0 [ 43.177401] ip_output+0x79/0x260 [ 43.180974] ? __ip_finish_output+0x340/0x340 [ 43.185542] ip_local_out+0x3a/0x60 [ 43.189253] __ip_queue_xmit+0x1e4/0x600 [ 43.193331] ip_queue_xmit+0x10/0x20 [ 43.197051] dccp_transmit_skb+0x26e/0x420 [ 43.201277] dccp_xmit_packet+0x70/0x170 [ 43.205331] dccp_write_xmit+0x8d/0xb0 [ 43.209200] dccp_sendmsg+0x225/0x3a0 [ 43.212989] inet_sendmsg+0x5f/0x70 [ 43.216611] sock_sendmsg+0x57/0x60 [ 43.220487] ____sys_sendmsg+0x1fc/0x270 [ 43.224537] ? copy_msghdr_from_user+0x5b/0x90 [ 43.229895] ? __lock_acquire+0x4e0/0x17e0 [ 43.234136] ___sys_sendmsg+0x77/0xb0 [ 43.237937] ? find_held_lock+0x35/0xa0 [ 43.241905] ? __fget_files+0xcc/0x1b0 [ 43.245805] ? __fget_files+0xeb/0x1b0 [ 43.249678] ? __fget_light+0x5e/0x70 [ 43.253565] __sys_sendmsg+0x5d/0xb0 [ 43.257366] ? do_syscall_64+0x13/0x80 [ 43.261240] __x64_sys_sendmsg+0x1a/0x20 [ 43.265280] do_syscall_64+0x37/0x80 [ 43.268974] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.274318] RIP: 0033:0x453009 [ 43.277509] 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 [ 43.296671] RSP: 002b:00007f4c7f24cc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 43.304623] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 43.311890] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 43.319142] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 43.326405] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 43.333659] R13: 00000000ffffffff R14: 00007f4c7f24d6d4 R15: 0000000000000002 [ 43.340949] CPU: 1 PID: 4447 Comm: syz-executor5 Not tainted 5.11.0-rc2-syzkaller #0 [ 43.348843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.358391] Call Trace: [ 43.360983] [ 43.363130] dump_stack+0xa9/0xd1 [ 43.366596] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 43.371813] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 43.376600] dccp_deliver_input_to_ccids+0x31/0x70 [ 43.381571] dccp_rcv_established+0x49/0x70 [ 43.385905] dccp_v4_do_rcv+0x3b/0x60 [ 43.389723] __sk_receive_skb+0xcc/0x2b0 [ 43.393921] dccp_v4_rcv+0x44b/0x820 [ 43.397775] ip_protocol_deliver_rcu+0x224/0x270 [ 43.402550] ip_local_deliver_finish+0x8d/0x130 [ 43.407361] ip_local_deliver+0x184/0x220 [ 43.411952] ? ip_protocol_deliver_rcu+0x270/0x270 [ 43.416889] ip_rcv_finish+0x3d/0x60 [ 43.420614] ip_rcv+0x162/0x210 [ 43.423916] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 43.429568] ? process_backlog+0xb1/0x2d0 [ 43.433814] __netif_receive_skb_one_core+0x81/0x90 [ 43.438861] __netif_receive_skb+0x13/0x60 [ 43.443112] process_backlog+0x122/0x2d0 [ 43.447185] net_rx_action+0x17d/0x4f0 [ 43.451088] __do_softirq+0xdc/0x452 [ 43.454807] ? ip_finish_output2+0x22b/0xa10 [ 43.459221] asm_call_irq_on_stack+0x12/0x20 [ 43.463637] [ 43.466059] do_softirq_own_stack+0x5c/0x70 [ 43.470480] do_softirq+0x75/0xb0 [ 43.474232] __local_bh_enable_ip+0x10a/0x110 [ 43.478767] ip_finish_output2+0x24f/0xa10 [ 43.479254] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 43.483020] __ip_finish_output+0x11e/0x340 [ 43.483027] ? __ip_finish_output+0x11e/0x340 [ 43.483031] ? ip_output+0x184/0x260 [ 43.483043] ip_finish_output+0x27/0xa0 [ 43.483054] ip_output+0x79/0x260 [ 43.483066] ? __ip_finish_output+0x340/0x340 [ 43.520811] ip_local_out+0x3a/0x60 [ 43.524422] __ip_queue_xmit+0x1e4/0x600 [ 43.528556] ip_queue_xmit+0x10/0x20 [ 43.532259] dccp_transmit_skb+0x26e/0x420 [ 43.536566] dccp_xmit_packet+0x70/0x170 [ 43.540876] dccp_write_xmit+0x8d/0xb0 [ 43.544833] dccp_sendmsg+0x225/0x3a0 [ 43.548628] inet_sendmsg+0x5f/0x70 [ 43.552246] sock_sendmsg+0x57/0x60 [ 43.555915] ____sys_sendmsg+0x1fc/0x270 [ 43.560055] ? copy_msghdr_from_user+0x5b/0x90 [ 43.564708] ? __lock_acquire+0x4e0/0x17e0 [ 43.568938] ___sys_sendmsg+0x77/0xb0 [ 43.572726] ? find_held_lock+0x35/0xa0 [ 43.576683] ? __fget_files+0xcc/0x1b0 [ 43.580560] ? __fget_files+0xeb/0x1b0 [ 43.584435] ? __fget_light+0x5e/0x70 [ 43.588219] __sys_sendmsg+0x5d/0xb0 [ 43.591936] ? do_syscall_64+0x13/0x80 [ 43.595832] __x64_sys_sendmsg+0x1a/0x20 [ 43.599956] do_syscall_64+0x37/0x80 [ 43.603657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.608835] RIP: 0033:0x453009 [ 43.612011] 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 [ 43.630894] RSP: 002b:00007f10e5170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 43.638604] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 43.645857] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 43.653109] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 43.660369] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 43.667793] R13: 00000000ffffffff R14: 00007f10e51716d4 R15: 0000000000000002 [ 43.675068] CPU: 0 PID: 4488 Comm: syz-executor3 Not tainted 5.11.0-rc2-syzkaller #0 [ 43.682953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.692328] Call Trace: [ 43.694907] [ 43.697054] dump_stack+0xa9/0xd1 [ 43.700513] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 43.705705] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 43.710392] dccp_deliver_input_to_ccids+0x31/0x70 [ 43.715328] dccp_rcv_established+0x49/0x70 [ 43.719654] dccp_v4_do_rcv+0x3b/0x60 [ 43.723467] __sk_receive_skb+0xcc/0x2b0 [ 43.727549] dccp_v4_rcv+0x44b/0x820 [ 43.731268] ip_protocol_deliver_rcu+0x224/0x270 [ 43.736145] ip_local_deliver_finish+0x8d/0x130 [ 43.741287] ip_local_deliver+0x184/0x220 [ 43.745555] ? ip_protocol_deliver_rcu+0x270/0x270 [ 43.750502] ip_rcv_finish+0x3d/0x60 [ 43.754407] ip_rcv+0x162/0x210 [ 43.757957] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 43.763156] ? process_backlog+0xb1/0x2d0 [ 43.767422] __netif_receive_skb_one_core+0x81/0x90 [ 43.772548] __netif_receive_skb+0x13/0x60 [ 43.776802] process_backlog+0x122/0x2d0 [ 43.781055] net_rx_action+0x17d/0x4f0 [ 43.784967] __do_softirq+0xdc/0x452 [ 43.788723] ? ip_finish_output2+0x22b/0xa10 [ 43.793225] asm_call_irq_on_stack+0x12/0x20 [ 43.797630] [ 43.799875] do_softirq_own_stack+0x5c/0x70 [ 43.804210] do_softirq+0x75/0xb0 [ 43.807718] __local_bh_enable_ip+0x10a/0x110 [ 43.812211] ip_finish_output2+0x24f/0xa10 [ 43.816749] __ip_finish_output+0x11e/0x340 [ 43.821156] ? __ip_finish_output+0x11e/0x340 [ 43.825652] ? ip_output+0x184/0x260 [ 43.829544] ip_finish_output+0x27/0xa0 [ 43.833866] ip_output+0x79/0x260 [ 43.837362] ? __ip_finish_output+0x340/0x340 [ 43.841903] ip_local_out+0x3a/0x60 [ 43.845535] __ip_queue_xmit+0x1e4/0x600 [ 43.849598] ip_queue_xmit+0x10/0x20 [ 43.853299] dccp_transmit_skb+0x26e/0x420 [ 43.857526] dccp_xmit_packet+0x70/0x170 [ 43.861569] dccp_write_xmit+0x8d/0xb0 [ 43.865570] dccp_sendmsg+0x225/0x3a0 [ 43.869361] inet_sendmsg+0x5f/0x70 [ 43.872971] sock_sendmsg+0x57/0x60 [ 43.876587] ____sys_sendmsg+0x1fc/0x270 [ 43.880634] ? copy_msghdr_from_user+0x5b/0x90 [ 43.885245] ? __lock_acquire+0x4e0/0x17e0 [ 43.889467] ___sys_sendmsg+0x77/0xb0 [ 43.893264] ? find_held_lock+0x35/0xa0 [ 43.897238] ? __fget_files+0xcc/0x1b0 [ 43.901121] ? __fget_files+0xeb/0x1b0 [ 43.905003] ? __fget_light+0x5e/0x70 [ 43.908789] __sys_sendmsg+0x5d/0xb0 [ 43.912487] ? do_syscall_64+0x13/0x80 [ 43.916486] __x64_sys_sendmsg+0x1a/0x20 [ 43.920527] do_syscall_64+0x37/0x80 [ 43.924222] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.929582] RIP: 0033:0x453009 [ 43.932896] 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 [ 43.952195] RSP: 002b:00007f3daa622c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 43.960014] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 43.967407] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 43.975075] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 43.982330] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 43.989624] R13: 00000000ffffffff R14: 00007f3daa6236d4 R15: 0000000000000002 2021/01/07 13:56:50 executed programs: 127 [ 44.126481] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 44.139855] CPU: 1 PID: 4597 Comm: syz-executor1 Not tainted 5.11.0-rc2-syzkaller #0 [ 44.147838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.157391] Call Trace: [ 44.159972] [ 44.162135] dump_stack+0xa9/0xd1 [ 44.165796] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 44.170984] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 44.175663] dccp_deliver_input_to_ccids+0x31/0x70 [ 44.180697] dccp_rcv_established+0x49/0x70 [ 44.185035] dccp_v4_do_rcv+0x3b/0x60 [ 44.188832] __sk_receive_skb+0xcc/0x2b0 [ 44.192896] dccp_v4_rcv+0x44b/0x820 [ 44.196744] ip_protocol_deliver_rcu+0x224/0x270 [ 44.201599] ip_local_deliver_finish+0x8d/0x130 [ 44.206553] ip_local_deliver+0x184/0x220 [ 44.210715] ? ip_protocol_deliver_rcu+0x270/0x270 [ 44.215652] ip_rcv_finish+0x3d/0x60 [ 44.219371] ip_rcv+0x162/0x210 [ 44.222653] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 44.227981] ? process_backlog+0xb1/0x2d0 [ 44.232132] __netif_receive_skb_one_core+0x81/0x90 [ 44.237303] __netif_receive_skb+0x13/0x60 [ 44.241628] process_backlog+0x122/0x2d0 [ 44.245811] net_rx_action+0x17d/0x4f0 [ 44.249938] __do_softirq+0xdc/0x452 [ 44.253653] ? ip_finish_output2+0x22b/0xa10 [ 44.258067] asm_call_irq_on_stack+0x12/0x20 [ 44.262487] [ 44.264723] do_softirq_own_stack+0x5c/0x70 [ 44.269127] do_softirq+0x75/0xb0 [ 44.272703] __local_bh_enable_ip+0x10a/0x110 [ 44.277206] ip_finish_output2+0x24f/0xa10 [ 44.281621] __ip_finish_output+0x11e/0x340 [ 44.286042] ? __ip_finish_output+0x11e/0x340 [ 44.291017] ? ip_output+0x184/0x260 [ 44.294839] ip_finish_output+0x27/0xa0 [ 44.298984] ip_output+0x79/0x260 [ 44.302445] ? __ip_finish_output+0x340/0x340 [ 44.306952] ip_local_out+0x3a/0x60 [ 44.310675] __ip_queue_xmit+0x1e4/0x600 [ 44.314859] ip_queue_xmit+0x10/0x20 [ 44.318670] dccp_transmit_skb+0x26e/0x420 [ 44.323010] dccp_xmit_packet+0x70/0x170 [ 44.327066] dccp_write_xmit+0x8d/0xb0 [ 44.330946] dccp_sendmsg+0x225/0x3a0 [ 44.334843] inet_sendmsg+0x5f/0x70 [ 44.338670] sock_sendmsg+0x57/0x60 [ 44.342289] ____sys_sendmsg+0x1fc/0x270 [ 44.346444] ? copy_msghdr_from_user+0x5b/0x90 [ 44.351130] ? __lock_acquire+0x4e0/0x17e0 [ 44.355473] ___sys_sendmsg+0x77/0xb0 [ 44.359262] ? find_held_lock+0x35/0xa0 [ 44.363219] ? __fget_files+0xcc/0x1b0 [ 44.367096] ? __fget_files+0xeb/0x1b0 [ 44.371050] ? __fget_light+0x5e/0x70 [ 44.375010] __sys_sendmsg+0x5d/0xb0 [ 44.378732] ? do_syscall_64+0x13/0x80 [ 44.383045] __x64_sys_sendmsg+0x1a/0x20 [ 44.387096] do_syscall_64+0x37/0x80 [ 44.390802] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.395973] RIP: 0033:0x453009 [ 44.399143] 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 [ 44.418033] RSP: 002b:00007fe0d0b46c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 44.425868] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 44.433385] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 44.440696] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 44.447971] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 44.455235] R13: 00000000ffffffff R14: 00007fe0d0b476d4 R15: 0000000000000002 [ 44.783830] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 44.797377] CPU: 0 PID: 4830 Comm: syz-executor5 Not tainted 5.11.0-rc2-syzkaller #0 [ 44.805268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.814625] Call Trace: [ 44.817329] [ 44.819477] dump_stack+0xa9/0xd1 [ 44.822959] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 44.828263] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 44.832941] dccp_deliver_input_to_ccids+0x31/0x70 [ 44.837882] dccp_rcv_established+0x49/0x70 [ 44.842233] dccp_v4_do_rcv+0x3b/0x60 [ 44.846128] __sk_receive_skb+0xcc/0x2b0 [ 44.850193] dccp_v4_rcv+0x44b/0x820 [ 44.853919] ip_protocol_deliver_rcu+0x224/0x270 [ 44.858769] ip_local_deliver_finish+0x8d/0x130 [ 44.863617] ip_local_deliver+0x184/0x220 [ 44.867774] ? ip_protocol_deliver_rcu+0x270/0x270 [ 44.872708] ip_rcv_finish+0x3d/0x60 [ 44.876420] ip_rcv+0x162/0x210 [ 44.879701] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 44.884899] ? process_backlog+0xb1/0x2d0 [ 44.889064] __netif_receive_skb_one_core+0x81/0x90 [ 44.894179] __netif_receive_skb+0x13/0x60 [ 44.898425] process_backlog+0x122/0x2d0 [ 44.902503] net_rx_action+0x17d/0x4f0 [ 44.906499] __do_softirq+0xdc/0x452 [ 44.910213] ? ip_finish_output2+0x22b/0xa10 [ 44.914746] asm_call_irq_on_stack+0x12/0x20 [ 44.919153] [ 44.921414] do_softirq_own_stack+0x5c/0x70 [ 44.925729] do_softirq+0x75/0xb0 [ 44.929340] __local_bh_enable_ip+0x10a/0x110 [ 44.933996] ip_finish_output2+0x24f/0xa10 [ 44.938418] __ip_finish_output+0x11e/0x340 [ 44.942903] ? __ip_finish_output+0x11e/0x340 [ 44.947377] ? ip_output+0x184/0x260 [ 44.951075] ip_finish_output+0x27/0xa0 [ 44.955035] ip_output+0x79/0x260 [ 44.958560] ? __ip_finish_output+0x340/0x340 [ 44.963139] ip_local_out+0x3a/0x60 [ 44.966751] __ip_queue_xmit+0x1e4/0x600 [ 44.970813] ip_queue_xmit+0x10/0x20 [ 44.974506] dccp_transmit_skb+0x26e/0x420 [ 44.978739] dccp_xmit_packet+0x70/0x170 [ 44.982804] dccp_write_xmit+0x8d/0xb0 [ 44.986674] dccp_sendmsg+0x225/0x3a0 [ 44.990462] inet_sendmsg+0x5f/0x70 [ 44.994096] sock_sendmsg+0x57/0x60 [ 44.997716] ____sys_sendmsg+0x1fc/0x270 [ 45.001775] ? copy_msghdr_from_user+0x5b/0x90 [ 45.006511] ? __lock_acquire+0x4e0/0x17e0 [ 45.010751] ___sys_sendmsg+0x77/0xb0 [ 45.014628] ? find_held_lock+0x35/0xa0 [ 45.018600] ? __fget_files+0xcc/0x1b0 [ 45.022485] ? __fget_files+0xeb/0x1b0 [ 45.026361] ? __fget_light+0x5e/0x70 [ 45.030238] __sys_sendmsg+0x5d/0xb0 [ 45.033938] ? do_syscall_64+0x13/0x80 [ 45.038124] __x64_sys_sendmsg+0x1a/0x20 [ 45.042167] do_syscall_64+0x37/0x80 [ 45.045897] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.051161] RIP: 0033:0x453009 [ 45.054338] 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 [ 45.073316] RSP: 002b:00007f10e5170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 45.081096] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 45.088481] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 45.095790] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 45.103096] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 45.110546] R13: 00000000ffffffff R14: 00007f10e51716d4 R15: 0000000000000002 [ 45.447113] net_ratelimit: 232 callbacks suppressed [ 45.447118] dccp_close: ABORT with 24 bytes unread [ 45.448918] dccp_close: ABORT with 24 bytes unread [ 45.454159] dccp_close: ABORT with 24 bytes unread [ 45.466445] dccp_close: ABORT with 24 bytes unread [ 45.474520] dccp_close: ABORT with 24 bytes unread [ 45.497891] dccp_close: ABORT with 24 bytes unread [ 45.498158] dccp_close: ABORT with 24 bytes unread [ 45.515321] dccp_close: ABORT with 24 bytes unread [ 45.525254] dccp_close: ABORT with 24 bytes unread [ 45.530623] dccp_close: ABORT with 24 bytes unread [ 45.721290] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 45.734679] CPU: 1 PID: 5198 Comm: syz-executor1 Not tainted 5.11.0-rc2-syzkaller #0 [ 45.742555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.751904] Call Trace: [ 45.754498] [ 45.756665] dump_stack+0xa9/0xd1 [ 45.760132] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 45.765407] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 45.770092] dccp_deliver_input_to_ccids+0x31/0x70 [ 45.775022] dccp_rcv_established+0x49/0x70 [ 45.779434] dccp_v4_do_rcv+0x3b/0x60 [ 45.783353] __sk_receive_skb+0xcc/0x2b0 [ 45.787414] dccp_v4_rcv+0x44b/0x820 [ 45.791141] ip_protocol_deliver_rcu+0x224/0x270 [ 45.795906] ip_local_deliver_finish+0x8d/0x130 [ 45.800583] ip_local_deliver+0x184/0x220 [ 45.804918] ? ip_protocol_deliver_rcu+0x270/0x270 [ 45.809858] ip_rcv_finish+0x3d/0x60 [ 45.813686] ip_rcv+0x162/0x210 [ 45.816969] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 45.822158] ? process_backlog+0xb1/0x2d0 [ 45.826829] __netif_receive_skb_one_core+0x81/0x90 [ 45.831949] __netif_receive_skb+0x13/0x60 [ 45.836360] process_backlog+0x122/0x2d0 [ 45.840434] net_rx_action+0x17d/0x4f0 [ 45.844496] __do_softirq+0xdc/0x452 [ 45.848303] ? ip_finish_output2+0x22b/0xa10 [ 45.852713] asm_call_irq_on_stack+0x12/0x20 [ 45.857122] [ 45.859351] do_softirq_own_stack+0x5c/0x70 [ 45.863800] do_softirq+0x75/0xb0 [ 45.867368] __local_bh_enable_ip+0x10a/0x110 [ 45.871870] ip_finish_output2+0x24f/0xa10 [ 45.876116] __ip_finish_output+0x11e/0x340 [ 45.880893] ? __ip_finish_output+0x11e/0x340 [ 45.885546] ? ip_output+0x184/0x260 [ 45.889336] ip_finish_output+0x27/0xa0 [ 45.893457] ip_output+0x79/0x260 [ 45.896897] ? __ip_finish_output+0x340/0x340 [ 45.901465] ip_local_out+0x3a/0x60 [ 45.905733] __ip_queue_xmit+0x1e4/0x600 [ 45.909791] ip_queue_xmit+0x10/0x20 [ 45.913483] dccp_transmit_skb+0x26e/0x420 [ 45.917703] dccp_xmit_packet+0x70/0x170 [ 45.921758] dccp_write_xmit+0x8d/0xb0 [ 45.926007] dccp_sendmsg+0x225/0x3a0 [ 45.929794] inet_sendmsg+0x5f/0x70 [ 45.933401] sock_sendmsg+0x57/0x60 [ 45.937005] ____sys_sendmsg+0x1fc/0x270 [ 45.941157] ? copy_msghdr_from_user+0x5b/0x90 [ 45.945769] ? __lock_acquire+0x4e0/0x17e0 [ 45.950090] ___sys_sendmsg+0x77/0xb0 [ 45.954221] ? find_held_lock+0x35/0xa0 [ 45.958310] ? __fget_files+0xcc/0x1b0 [ 45.962274] ? __fget_files+0xeb/0x1b0 [ 45.966142] ? __fget_light+0x5e/0x70 [ 45.969926] __sys_sendmsg+0x5d/0xb0 [ 45.973747] ? do_syscall_64+0x13/0x80 [ 45.977629] __x64_sys_sendmsg+0x1a/0x20 [ 45.981673] do_syscall_64+0x37/0x80 [ 45.985368] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.990536] RIP: 0033:0x453009 [ 45.993850] 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 [ 46.013167] RSP: 002b:00007fe0d0b46c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 46.020967] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 46.028217] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 46.035845] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 46.043095] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 46.050346] R13: 00000000ffffffff R14: 00007fe0d0b476d4 R15: 0000000000000002 [ 46.152660] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 46.166093] CPU: 1 PID: 5290 Comm: syz-executor Not tainted 5.11.0-rc2-syzkaller #0 [ 46.174344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.183704] Call Trace: [ 46.186299] [ 46.188467] dump_stack+0xa9/0xd1 [ 46.192061] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 46.197426] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 46.202201] dccp_deliver_input_to_ccids+0x31/0x70 [ 46.207331] dccp_rcv_established+0x49/0x70 [ 46.211832] dccp_v4_do_rcv+0x3b/0x60 [ 46.213872] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 46.215653] __sk_receive_skb+0xcc/0x2b0 [ 46.215668] dccp_v4_rcv+0x44b/0x820 [ 46.215683] ip_protocol_deliver_rcu+0x224/0x270 [ 46.215696] ip_local_deliver_finish+0x8d/0x130 [ 46.215704] ip_local_deliver+0x184/0x220 [ 46.215713] ? ip_protocol_deliver_rcu+0x270/0x270 [ 46.255363] ip_rcv_finish+0x3d/0x60 [ 46.259073] ip_rcv+0x162/0x210 [ 46.262339] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 46.267597] ? process_backlog+0xb1/0x2d0 [ 46.271724] __netif_receive_skb_one_core+0x81/0x90 [ 46.276722] __netif_receive_skb+0x13/0x60 [ 46.281042] process_backlog+0x122/0x2d0 [ 46.285189] net_rx_action+0x17d/0x4f0 [ 46.289153] __do_softirq+0xdc/0x452 [ 46.292943] ? ip_finish_output2+0x22b/0xa10 [ 46.297451] asm_call_irq_on_stack+0x12/0x20 [ 46.301948] [ 46.304165] do_softirq_own_stack+0x5c/0x70 [ 46.308484] do_softirq+0x75/0xb0 [ 46.312006] __local_bh_enable_ip+0x10a/0x110 [ 46.316533] ip_finish_output2+0x24f/0xa10 [ 46.320779] __ip_finish_output+0x11e/0x340 [ 46.325081] ? __ip_finish_output+0x11e/0x340 [ 46.329554] ? ip_output+0x184/0x260 [ 46.333537] ip_finish_output+0x27/0xa0 [ 46.337527] ip_output+0x79/0x260 [ 46.340971] ? __ip_finish_output+0x340/0x340 [ 46.345468] ip_local_out+0x3a/0x60 [ 46.349197] __ip_queue_xmit+0x1e4/0x600 [ 46.353257] ip_queue_xmit+0x10/0x20 [ 46.356955] dccp_transmit_skb+0x26e/0x420 [ 46.361280] dccp_xmit_packet+0x70/0x170 [ 46.365332] dccp_write_xmit+0x8d/0xb0 [ 46.369200] dccp_sendmsg+0x225/0x3a0 [ 46.372989] inet_sendmsg+0x5f/0x70 [ 46.376690] sock_sendmsg+0x57/0x60 [ 46.380588] ____sys_sendmsg+0x1fc/0x270 [ 46.384629] ? copy_msghdr_from_user+0x5b/0x90 [ 46.389390] ? __lock_acquire+0x4e0/0x17e0 [ 46.393637] ___sys_sendmsg+0x77/0xb0 [ 46.397436] ? find_held_lock+0x35/0xa0 [ 46.401390] ? __fget_files+0xcc/0x1b0 [ 46.405278] ? __fget_files+0xeb/0x1b0 [ 46.409147] ? __fget_light+0x5e/0x70 [ 46.412943] __sys_sendmsg+0x5d/0xb0 [ 46.419082] ? do_syscall_64+0x13/0x80 [ 46.422956] __x64_sys_sendmsg+0x1a/0x20 [ 46.427083] do_syscall_64+0x37/0x80 [ 46.430865] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.436209] RIP: 0033:0x453009 [ 46.439380] 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 [ 46.458260] RSP: 002b:00007f35c084ec58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 46.466062] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 46.473309] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 46.480676] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 46.488138] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 46.495423] R13: 00000000ffffffff R14: 00007f35c084f6d4 R15: 0000000000000002 [ 46.502714] CPU: 0 PID: 5313 Comm: syz-executor1 Not tainted 5.11.0-rc2-syzkaller #0 [ 46.510701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.520056] Call Trace: [ 46.522634] [ 46.524783] dump_stack+0xa9/0xd1 [ 46.528237] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 46.533435] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 46.538112] dccp_deliver_input_to_ccids+0x31/0x70 [ 46.543063] dccp_rcv_established+0x49/0x70 [ 46.547486] dccp_v4_do_rcv+0x3b/0x60 [ 46.551289] __sk_receive_skb+0xcc/0x2b0 [ 46.555381] dccp_v4_rcv+0x44b/0x820 [ 46.559113] ip_protocol_deliver_rcu+0x224/0x270 [ 46.563959] ip_local_deliver_finish+0x8d/0x130 [ 46.568827] ip_local_deliver+0x184/0x220 [ 46.573000] ? ip_protocol_deliver_rcu+0x270/0x270 [ 46.577941] ip_rcv_finish+0x3d/0x60 [ 46.581664] ip_rcv+0x162/0x210 [ 46.585054] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 46.590254] ? process_backlog+0xb1/0x2d0 [ 46.594416] __netif_receive_skb_one_core+0x81/0x90 [ 46.599450] __netif_receive_skb+0x13/0x60 [ 46.603695] process_backlog+0x122/0x2d0 [ 46.607776] net_rx_action+0x17d/0x4f0 [ 46.611680] __do_softirq+0xdc/0x452 [ 46.615487] ? ip_finish_output2+0x22b/0xa10 [ 46.619902] asm_call_irq_on_stack+0x12/0x20 [ 46.624493] [ 46.626730] do_softirq_own_stack+0x5c/0x70 [ 46.631058] do_softirq+0x75/0xb0 [ 46.634605] __local_bh_enable_ip+0x10a/0x110 [ 46.639108] ip_finish_output2+0x24f/0xa10 [ 46.643460] __ip_finish_output+0x11e/0x340 [ 46.647783] ? __ip_finish_output+0x11e/0x340 [ 46.652282] ? ip_output+0x184/0x260 [ 46.655980] ip_finish_output+0x27/0xa0 [ 46.660141] ip_output+0x79/0x260 [ 46.663667] ? __ip_finish_output+0x340/0x340 [ 46.668152] ip_local_out+0x3a/0x60 [ 46.671814] __ip_queue_xmit+0x1e4/0x600 [ 46.675940] ip_queue_xmit+0x10/0x20 [ 46.679682] dccp_transmit_skb+0x26e/0x420 [ 46.684174] dccp_xmit_packet+0x70/0x170 [ 46.688416] dccp_write_xmit+0x8d/0xb0 [ 46.692477] dccp_sendmsg+0x225/0x3a0 [ 46.696283] inet_sendmsg+0x5f/0x70 [ 46.699985] sock_sendmsg+0x57/0x60 [ 46.703600] ____sys_sendmsg+0x1fc/0x270 [ 46.707652] ? copy_msghdr_from_user+0x5b/0x90 [ 46.712469] ? __lock_acquire+0x4e0/0x17e0 [ 46.717147] ___sys_sendmsg+0x77/0xb0 [ 46.721224] ? find_held_lock+0x35/0xa0 [ 46.725194] ? __fget_files+0xcc/0x1b0 [ 46.729300] ? __fget_files+0xeb/0x1b0 [ 46.733170] ? __fget_light+0x5e/0x70 [ 46.736953] __sys_sendmsg+0x5d/0xb0 [ 46.740661] ? do_syscall_64+0x13/0x80 [ 46.744536] __x64_sys_sendmsg+0x1a/0x20 [ 46.748576] do_syscall_64+0x37/0x80 [ 46.752265] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.757458] RIP: 0033:0x453009 [ 46.760643] 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 [ 46.779789] RSP: 002b:00007fe0d0b46c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 46.787474] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 46.794725] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 46.801971] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 46.809216] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 46.816529] R13: 00000000ffffffff R14: 00007fe0d0b476d4 R15: 0000000000000002 [ 46.861960] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 46.875588] CPU: 1 PID: 5375 Comm: syz-executor5 Not tainted 5.11.0-rc2-syzkaller #0 [ 46.883596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.893038] Call Trace: [ 46.895853] [ 46.898075] dump_stack+0xa9/0xd1 [ 46.901538] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 46.906726] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 46.911487] dccp_deliver_input_to_ccids+0x31/0x70 [ 46.916593] dccp_rcv_established+0x49/0x70 [ 46.920928] dccp_v4_do_rcv+0x3b/0x60 [ 46.924863] __sk_receive_skb+0xcc/0x2b0 [ 46.928938] dccp_v4_rcv+0x44b/0x820 [ 46.932690] ip_protocol_deliver_rcu+0x224/0x270 [ 46.937476] ip_local_deliver_finish+0x8d/0x130 [ 46.942154] ip_local_deliver+0x184/0x220 [ 46.946319] ? ip_protocol_deliver_rcu+0x270/0x270 [ 46.951251] ip_rcv_finish+0x3d/0x60 [ 46.955143] ip_rcv+0x162/0x210 [ 46.958429] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 46.963624] ? process_backlog+0xb1/0x2d0 [ 46.967868] __netif_receive_skb_one_core+0x81/0x90 [ 46.972931] __netif_receive_skb+0x13/0x60 [ 46.977581] process_backlog+0x122/0x2d0 [ 46.981726] net_rx_action+0x17d/0x4f0 [ 46.985691] __do_softirq+0xdc/0x452 [ 46.989452] ? ip_finish_output2+0x22b/0xa10 [ 46.993879] asm_call_irq_on_stack+0x12/0x20 [ 46.998357] [ 47.000570] do_softirq_own_stack+0x5c/0x70 [ 47.005038] do_softirq+0x75/0xb0 [ 47.008491] __local_bh_enable_ip+0x10a/0x110 [ 47.013065] ip_finish_output2+0x24f/0xa10 [ 47.017301] __ip_finish_output+0x11e/0x340 [ 47.021610] ? __ip_finish_output+0x11e/0x340 [ 47.026224] ? ip_output+0x184/0x260 [ 47.029922] ip_finish_output+0x27/0xa0 [ 47.033882] ip_output+0x79/0x260 [ 47.037322] ? __ip_finish_output+0x340/0x340 [ 47.041805] ip_local_out+0x3a/0x60 [ 47.045418] __ip_queue_xmit+0x1e4/0x600 [ 47.050614] ip_queue_xmit+0x10/0x20 [ 47.054662] dccp_transmit_skb+0x26e/0x420 [ 47.059058] dccp_xmit_packet+0x70/0x170 [ 47.063190] dccp_write_xmit+0x8d/0xb0 [ 47.067083] dccp_sendmsg+0x225/0x3a0 [ 47.070872] inet_sendmsg+0x5f/0x70 [ 47.074501] sock_sendmsg+0x57/0x60 [ 47.078124] ____sys_sendmsg+0x1fc/0x270 [ 47.082165] ? copy_msghdr_from_user+0x5b/0x90 [ 47.086822] ? __lock_acquire+0x4e0/0x17e0 [ 47.091130] ___sys_sendmsg+0x77/0xb0 [ 47.094929] ? find_held_lock+0x35/0xa0 [ 47.098889] ? __fget_files+0xcc/0x1b0 [ 47.102956] ? __fget_files+0xeb/0x1b0 [ 47.106914] ? __fget_light+0x5e/0x70 [ 47.110705] __sys_sendmsg+0x5d/0xb0 [ 47.114509] ? do_syscall_64+0x13/0x80 [ 47.118558] __x64_sys_sendmsg+0x1a/0x20 [ 47.122644] do_syscall_64+0x37/0x80 [ 47.126341] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.131635] RIP: 0033:0x453009 [ 47.134825] 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 [ 47.154212] RSP: 002b:00007f10e5170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 47.162078] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 47.169334] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 47.177383] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 47.184632] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 47.192082] R13: 00000000ffffffff R14: 00007f10e51716d4 R15: 0000000000000004 [ 47.345623] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 47.358920] CPU: 1 PID: 5489 Comm: syz-executor Not tainted 5.11.0-rc2-syzkaller #0 [ 47.366815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.376171] Call Trace: [ 47.378751] [ 47.380912] dump_stack+0xa9/0xd1 [ 47.384453] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 47.389740] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 47.394419] dccp_deliver_input_to_ccids+0x31/0x70 [ 47.399361] dccp_rcv_established+0x49/0x70 [ 47.403688] dccp_v4_do_rcv+0x3b/0x60 [ 47.407486] __sk_receive_skb+0xcc/0x2b0 [ 47.411726] dccp_v4_rcv+0x44b/0x820 [ 47.415473] ip_protocol_deliver_rcu+0x224/0x270 [ 47.420448] ip_local_deliver_finish+0x8d/0x130 [ 47.425119] ip_local_deliver+0x184/0x220 [ 47.429268] ? ip_protocol_deliver_rcu+0x270/0x270 [ 47.434202] ip_rcv_finish+0x3d/0x60 [ 47.437925] ip_rcv+0x162/0x210 [ 47.441209] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 47.446617] ? process_backlog+0xb1/0x2d0 [ 47.450775] __netif_receive_skb_one_core+0x81/0x90 [ 47.455919] __netif_receive_skb+0x13/0x60 [ 47.460264] process_backlog+0x122/0x2d0 [ 47.464343] net_rx_action+0x17d/0x4f0 [ 47.468276] __do_softirq+0xdc/0x452 [ 47.472358] ? ip_finish_output2+0x22b/0xa10 [ 47.476839] asm_call_irq_on_stack+0x12/0x20 [ 47.481292] [ 47.483517] do_softirq_own_stack+0x5c/0x70 [ 47.487834] do_softirq+0x75/0xb0 [ 47.491336] __local_bh_enable_ip+0x10a/0x110 [ 47.496053] ip_finish_output2+0x24f/0xa10 [ 47.500372] __ip_finish_output+0x11e/0x340 [ 47.504680] ? __ip_finish_output+0x11e/0x340 [ 47.509157] ? ip_output+0x184/0x260 [ 47.512880] ip_finish_output+0x27/0xa0 [ 47.516849] ip_output+0x79/0x260 [ 47.520367] ? __ip_finish_output+0x340/0x340 [ 47.524951] ip_local_out+0x3a/0x60 [ 47.528662] __ip_queue_xmit+0x1e4/0x600 [ 47.532724] ip_queue_xmit+0x10/0x20 [ 47.536426] dccp_transmit_skb+0x26e/0x420 [ 47.540675] dccp_xmit_packet+0x70/0x170 [ 47.544842] dccp_write_xmit+0x8d/0xb0 [ 47.548721] dccp_sendmsg+0x225/0x3a0 [ 47.552530] inet_sendmsg+0x5f/0x70 [ 47.556147] sock_sendmsg+0x57/0x60 [ 47.559809] ____sys_sendmsg+0x1fc/0x270 [ 47.563983] ? copy_msghdr_from_user+0x5b/0x90 [ 47.568747] ? __lock_acquire+0x4e0/0x17e0 [ 47.572974] ___sys_sendmsg+0x77/0xb0 [ 47.577043] ? find_held_lock+0x35/0xa0 [ 47.581012] ? __fget_files+0xcc/0x1b0 [ 47.584894] ? __fget_files+0xeb/0x1b0 [ 47.588761] ? __fget_light+0x5e/0x70 [ 47.592555] __sys_sendmsg+0x5d/0xb0 [ 47.596623] ? do_syscall_64+0x13/0x80 [ 47.600495] __x64_sys_sendmsg+0x1a/0x20 [ 47.604549] do_syscall_64+0x37/0x80 [ 47.608265] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.613622] RIP: 0033:0x453009 [ 47.616894] 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 [ 47.635889] RSP: 002b:00007f35c084ec58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 47.643679] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 47.650937] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 47.658517] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 47.665957] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 47.673536] R13: 00000000ffffffff R14: 00007f35c084f6d4 R15: 0000000000000008 [ 47.953287] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 47.966815] CPU: 0 PID: 5683 Comm: syz-executor4 Not tainted 5.11.0-rc2-syzkaller #0 [ 47.974800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.984627] Call Trace: [ 47.987202] [ 47.989350] dump_stack+0xa9/0xd1 [ 47.992812] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 47.998010] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 48.002683] dccp_deliver_input_to_ccids+0x31/0x70 [ 48.007611] dccp_rcv_established+0x49/0x70 [ 48.011940] dccp_v4_do_rcv+0x3b/0x60 [ 48.015838] __sk_receive_skb+0xcc/0x2b0 [ 48.019997] dccp_v4_rcv+0x44b/0x820 [ 48.023725] ip_protocol_deliver_rcu+0x224/0x270 [ 48.028520] ip_local_deliver_finish+0x8d/0x130 [ 48.033184] ip_local_deliver+0x184/0x220 [ 48.037422] ? ip_protocol_deliver_rcu+0x270/0x270 [ 48.042367] ip_rcv_finish+0x3d/0x60 [ 48.046078] ip_rcv+0x162/0x210 [ 48.049362] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 48.054669] ? process_backlog+0xb1/0x2d0 [ 48.059079] __netif_receive_skb_one_core+0x81/0x90 [ 48.064103] __netif_receive_skb+0x13/0x60 [ 48.068342] process_backlog+0x122/0x2d0 [ 48.072420] net_rx_action+0x17d/0x4f0 [ 48.076313] __do_softirq+0xdc/0x452 [ 48.080012] ? ip_finish_output2+0x22b/0xa10 [ 48.084411] asm_call_irq_on_stack+0x12/0x20 [ 48.088909] [ 48.091231] do_softirq_own_stack+0x5c/0x70 [ 48.095595] do_softirq+0x75/0xb0 [ 48.099030] __local_bh_enable_ip+0x10a/0x110 [ 48.103656] ip_finish_output2+0x24f/0xa10 [ 48.108142] __ip_finish_output+0x11e/0x340 [ 48.112552] ? __ip_finish_output+0x11e/0x340 [ 48.117028] ? ip_output+0x184/0x260 [ 48.120908] ip_finish_output+0x27/0xa0 [ 48.124862] ip_output+0x79/0x260 [ 48.128305] ? __ip_finish_output+0x340/0x340 [ 48.132788] ip_local_out+0x3a/0x60 [ 48.136418] __ip_queue_xmit+0x1e4/0x600 [ 48.140486] ip_queue_xmit+0x10/0x20 [ 48.144279] dccp_transmit_skb+0x26e/0x420 [ 48.148510] dccp_xmit_packet+0x70/0x170 [ 48.152606] dccp_write_xmit+0x8d/0xb0 [ 48.156519] dccp_sendmsg+0x225/0x3a0 [ 48.160401] inet_sendmsg+0x5f/0x70 [ 48.164126] sock_sendmsg+0x57/0x60 [ 48.167867] ____sys_sendmsg+0x1fc/0x270 [ 48.171907] ? copy_msghdr_from_user+0x5b/0x90 [ 48.176590] ? __lock_acquire+0x4e0/0x17e0 [ 48.181119] ___sys_sendmsg+0x77/0xb0 [ 48.184910] ? find_held_lock+0x35/0xa0 [ 48.189094] ? __fget_files+0xcc/0x1b0 [ 48.193386] ? __fget_files+0xeb/0x1b0 [ 48.197272] ? __fget_light+0x5e/0x70 [ 48.201101] __sys_sendmsg+0x5d/0xb0 [ 48.204810] ? do_syscall_64+0x13/0x80 [ 48.208978] __x64_sys_sendmsg+0x1a/0x20 [ 48.213049] do_syscall_64+0x37/0x80 [ 48.216744] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.222002] RIP: 0033:0x453009 [ 48.225186] 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 [ 48.244529] RSP: 002b:00007f4c7f24cc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 48.252394] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 48.259698] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 48.267328] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 48.274695] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 48.282080] R13: 00000000ffffffff R14: 00007f4c7f24d6d4 R15: 0000000000000002 [ 48.574374] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 48.588858] CPU: 0 PID: 5877 Comm: syz-executor3 Not tainted 5.11.0-rc2-syzkaller #0 [ 48.596754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.606200] Call Trace: [ 48.608782] [ 48.610924] dump_stack+0xa9/0xd1 [ 48.614536] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 48.619728] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 48.624403] dccp_deliver_input_to_ccids+0x31/0x70 [ 48.629370] dccp_rcv_established+0x49/0x70 [ 48.633890] dccp_v4_do_rcv+0x3b/0x60 [ 48.637688] __sk_receive_skb+0xcc/0x2b0 [ 48.641758] dccp_v4_rcv+0x44b/0x820 [ 48.645488] ip_protocol_deliver_rcu+0x224/0x270 [ 48.650247] ip_local_deliver_finish+0x8d/0x130 [ 48.655699] ip_local_deliver+0x184/0x220 [ 48.659892] ? ip_protocol_deliver_rcu+0x270/0x270 [ 48.664916] ip_rcv_finish+0x3d/0x60 [ 48.668630] ip_rcv+0x162/0x210 [ 48.671911] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 48.677098] ? process_backlog+0xb1/0x2d0 [ 48.681679] __netif_receive_skb_one_core+0x81/0x90 [ 48.686703] __netif_receive_skb+0x13/0x60 [ 48.690944] process_backlog+0x122/0x2d0 [ 48.695004] net_rx_action+0x17d/0x4f0 [ 48.699026] __do_softirq+0xdc/0x452 [ 48.702950] ? ip_finish_output2+0x22b/0xa10 [ 48.707436] asm_call_irq_on_stack+0x12/0x20 [ 48.711936] [ 48.714184] do_softirq_own_stack+0x5c/0x70 [ 48.718785] do_softirq+0x75/0xb0 [ 48.722227] __local_bh_enable_ip+0x10a/0x110 [ 48.726812] ip_finish_output2+0x24f/0xa10 [ 48.731035] __ip_finish_output+0x11e/0x340 [ 48.735546] ? __ip_finish_output+0x11e/0x340 [ 48.740489] ? ip_output+0x184/0x260 [ 48.744302] ip_finish_output+0x27/0xa0 [ 48.748348] ip_output+0x79/0x260 [ 48.751789] ? __ip_finish_output+0x340/0x340 [ 48.756269] ip_local_out+0x3a/0x60 [ 48.759878] __ip_queue_xmit+0x1e4/0x600 [ 48.764116] ip_queue_xmit+0x10/0x20 [ 48.767809] dccp_transmit_skb+0x26e/0x420 [ 48.772146] dccp_xmit_packet+0x70/0x170 [ 48.776291] dccp_write_xmit+0x8d/0xb0 [ 48.780296] dccp_sendmsg+0x225/0x3a0 [ 48.784101] inet_sendmsg+0x5f/0x70 [ 48.787712] sock_sendmsg+0x57/0x60 [ 48.791335] ____sys_sendmsg+0x1fc/0x270 [ 48.795380] ? copy_msghdr_from_user+0x5b/0x90 [ 48.800059] ? __lock_acquire+0x4e0/0x17e0 [ 48.804387] ___sys_sendmsg+0x77/0xb0 [ 48.808276] ? find_held_lock+0x35/0xa0 [ 48.812317] ? __fget_files+0xcc/0x1b0 [ 48.816391] ? __fget_files+0xeb/0x1b0 [ 48.820267] ? __fget_light+0x5e/0x70 [ 48.824067] __sys_sendmsg+0x5d/0xb0 [ 48.827770] ? do_syscall_64+0x13/0x80 [ 48.831644] __x64_sys_sendmsg+0x1a/0x20 [ 48.835918] do_syscall_64+0x37/0x80 [ 48.839614] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.845051] RIP: 0033:0x453009 [ 48.848316] 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 [ 48.867302] RSP: 002b:00007f3daa622c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 48.874990] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 48.882442] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 48.889886] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 48.897396] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 48.904643] R13: 00000000ffffffff R14: 00007f3daa6236d4 R15: 0000000000000002 2021/01/07 13:56:55 executed programs: 488 [ 49.132527] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 49.145987] CPU: 0 PID: 6045 Comm: syz-executor5 Not tainted 5.11.0-rc2-syzkaller #0 [ 49.153890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.163330] Call Trace: [ 49.165910] [ 49.168058] dump_stack+0xa9/0xd1 [ 49.171644] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.177034] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.181749] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.186863] dccp_rcv_established+0x49/0x70 [ 49.191198] dccp_v4_do_rcv+0x3b/0x60 [ 49.195007] __sk_receive_skb+0xcc/0x2b0 [ 49.199179] dccp_v4_rcv+0x44b/0x820 [ 49.202909] ip_protocol_deliver_rcu+0x224/0x270 [ 49.207671] ip_local_deliver_finish+0x8d/0x130 [ 49.211378] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 49.212386] ip_local_deliver+0x184/0x220 [ 49.212401] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.212415] ip_rcv_finish+0x3d/0x60 [ 49.212421] ip_rcv+0x162/0x210 [ 49.212430] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.247368] ? process_backlog+0xb1/0x2d0 [ 49.251502] __netif_receive_skb_one_core+0x81/0x90 [ 49.256523] __netif_receive_skb+0x13/0x60 [ 49.260752] process_backlog+0x122/0x2d0 [ 49.264885] net_rx_action+0x17d/0x4f0 [ 49.268778] __do_softirq+0xdc/0x452 [ 49.272494] ? ip_finish_output2+0x22b/0xa10 [ 49.276899] asm_call_irq_on_stack+0x12/0x20 [ 49.281299] [ 49.283529] do_softirq_own_stack+0x5c/0x70 [ 49.287831] do_softirq+0x75/0xb0 [ 49.291873] __local_bh_enable_ip+0x10a/0x110 [ 49.296351] ip_finish_output2+0x24f/0xa10 [ 49.300576] __ip_finish_output+0x11e/0x340 [ 49.304876] ? __ip_finish_output+0x11e/0x340 [ 49.309351] ? ip_output+0x184/0x260 [ 49.313074] ip_finish_output+0x27/0xa0 [ 49.317130] ip_output+0x79/0x260 [ 49.320569] ? __ip_finish_output+0x340/0x340 [ 49.325049] ip_local_out+0x3a/0x60 [ 49.328752] __ip_queue_xmit+0x1e4/0x600 [ 49.332806] ip_queue_xmit+0x10/0x20 [ 49.336588] dccp_transmit_skb+0x26e/0x420 [ 49.340937] dccp_xmit_packet+0x70/0x170 [ 49.345097] dccp_write_xmit+0x8d/0xb0 [ 49.349079] dccp_sendmsg+0x225/0x3a0 [ 49.352878] inet_sendmsg+0x5f/0x70 [ 49.356489] sock_sendmsg+0x57/0x60 [ 49.360100] ____sys_sendmsg+0x1fc/0x270 [ 49.364397] ? copy_msghdr_from_user+0x5b/0x90 [ 49.369080] ? __lock_acquire+0x4e0/0x17e0 [ 49.373318] ___sys_sendmsg+0x77/0xb0 [ 49.377294] ? find_held_lock+0x35/0xa0 [ 49.381293] ? __fget_files+0xcc/0x1b0 [ 49.385177] ? __fget_files+0xeb/0x1b0 [ 49.389073] ? __fget_light+0x5e/0x70 [ 49.392885] __sys_sendmsg+0x5d/0xb0 [ 49.396584] ? do_syscall_64+0x13/0x80 [ 49.400544] __x64_sys_sendmsg+0x1a/0x20 [ 49.404947] do_syscall_64+0x37/0x80 [ 49.408660] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.413829] RIP: 0033:0x453009 [ 49.417097] 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 [ 49.436274] RSP: 002b:00007f10e5170c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.443967] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.451391] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.458643] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.465983] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.473247] R13: 00000000ffffffff R14: 00007f10e51716d4 R15: 0000000000000004 [ 49.480517] CPU: 1 PID: 6068 Comm: syz-executor4 Not tainted 5.11.0-rc2-syzkaller #0 [ 49.488557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.498005] Call Trace: [ 49.500679] [ 49.502915] dump_stack+0xa9/0xd1 [ 49.506377] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.511912] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.516599] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.521536] dccp_rcv_established+0x49/0x70 [ 49.525868] dccp_v4_do_rcv+0x3b/0x60 [ 49.529800] __sk_receive_skb+0xcc/0x2b0 [ 49.533873] dccp_v4_rcv+0x44b/0x820 [ 49.537647] ip_protocol_deliver_rcu+0x224/0x270 [ 49.542458] ip_local_deliver_finish+0x8d/0x130 [ 49.547160] ip_local_deliver+0x184/0x220 [ 49.551365] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.556402] ip_rcv_finish+0x3d/0x60 [ 49.560127] ip_rcv+0x162/0x210 [ 49.563496] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.568971] ? process_backlog+0xb1/0x2d0 [ 49.573128] __netif_receive_skb_one_core+0x81/0x90 [ 49.578146] __netif_receive_skb+0x13/0x60 [ 49.582512] process_backlog+0x122/0x2d0 [ 49.586585] net_rx_action+0x17d/0x4f0 [ 49.590498] __do_softirq+0xdc/0x452 [ 49.594257] ? ip_finish_output2+0x22b/0xa10 [ 49.598783] asm_call_irq_on_stack+0x12/0x20 [ 49.600330] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 49.603210] [ 49.603214] do_softirq_own_stack+0x5c/0x70 [ 49.603223] do_softirq+0x75/0xb0 [ 49.603231] __local_bh_enable_ip+0x10a/0x110 [ 49.603240] ip_finish_output2+0x24f/0xa10 [ 49.603260] __ip_finish_output+0x11e/0x340 [ 49.603264] ? __ip_finish_output+0x11e/0x340 [ 49.603269] ? ip_output+0x184/0x260 [ 49.603280] ip_finish_output+0x27/0xa0 [ 49.652343] ip_output+0x79/0x260 [ 49.655893] ? __ip_finish_output+0x340/0x340 [ 49.660373] ip_local_out+0x3a/0x60 [ 49.664071] __ip_queue_xmit+0x1e4/0x600 [ 49.668207] ip_queue_xmit+0x10/0x20 [ 49.671915] dccp_transmit_skb+0x26e/0x420 [ 49.676419] dccp_xmit_packet+0x70/0x170 [ 49.680563] dccp_write_xmit+0x8d/0xb0 [ 49.684431] dccp_sendmsg+0x225/0x3a0 [ 49.688217] inet_sendmsg+0x5f/0x70 [ 49.691826] sock_sendmsg+0x57/0x60 [ 49.695544] ____sys_sendmsg+0x1fc/0x270 [ 49.699594] ? copy_msghdr_from_user+0x5b/0x90 [ 49.704158] ? __lock_acquire+0x4e0/0x17e0 [ 49.708386] ___sys_sendmsg+0x77/0xb0 [ 49.712234] ? find_held_lock+0x35/0xa0 [ 49.716207] ? __fget_files+0xcc/0x1b0 [ 49.720098] ? __fget_files+0xeb/0x1b0 [ 49.724070] ? __fget_light+0x5e/0x70 [ 49.727942] __sys_sendmsg+0x5d/0xb0 [ 49.731643] ? do_syscall_64+0x13/0x80 [ 49.735520] __x64_sys_sendmsg+0x1a/0x20 [ 49.739657] do_syscall_64+0x37/0x80 [ 49.743444] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.748615] RIP: 0033:0x453009 [ 49.751792] 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 [ 49.770866] RSP: 002b:00007f4c7f24cc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.778556] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 49.785804] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.793055] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.800305] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.807557] R13: 00000000ffffffff R14: 00007f4c7f24d6d4 R15: 0000000000000002 [ 49.814827] CPU: 0 PID: 6103 Comm: syz-executor2 Not tainted 5.11.0-rc2-syzkaller #0 [ 49.822802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.832273] Call Trace: [ 49.834865] [ 49.837311] dump_stack+0xa9/0xd1 [ 49.840764] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 49.846034] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 49.850711] dccp_deliver_input_to_ccids+0x31/0x70 [ 49.855645] dccp_rcv_established+0x49/0x70 [ 49.860145] dccp_v4_do_rcv+0x3b/0x60 [ 49.863946] __sk_receive_skb+0xcc/0x2b0 [ 49.868096] dccp_v4_rcv+0x44b/0x820 [ 49.871815] ip_protocol_deliver_rcu+0x224/0x270 [ 49.876573] ip_local_deliver_finish+0x8d/0x130 [ 49.881241] ip_local_deliver+0x184/0x220 [ 49.885402] ? ip_protocol_deliver_rcu+0x270/0x270 [ 49.890348] ip_rcv_finish+0x3d/0x60 [ 49.894059] ip_rcv+0x162/0x210 [ 49.897336] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 49.902524] ? process_backlog+0xb1/0x2d0 [ 49.906754] __netif_receive_skb_one_core+0x81/0x90 [ 49.911803] __netif_receive_skb+0x13/0x60 [ 49.916060] process_backlog+0x122/0x2d0 [ 49.920232] net_rx_action+0x17d/0x4f0 [ 49.924241] __do_softirq+0xdc/0x452 [ 49.924767] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 49.927969] ? ip_finish_output2+0x22b/0xa10 [ 49.927986] asm_call_irq_on_stack+0x12/0x20 [ 49.927993] [ 49.927997] do_softirq_own_stack+0x5c/0x70 [ 49.928004] do_softirq+0x75/0xb0 [ 49.960200] __local_bh_enable_ip+0x10a/0x110 [ 49.964859] ip_finish_output2+0x24f/0xa10 [ 49.969100] __ip_finish_output+0x11e/0x340 [ 49.973503] ? __ip_finish_output+0x11e/0x340 [ 49.977990] ? ip_output+0x184/0x260 [ 49.981686] ip_finish_output+0x27/0xa0 [ 49.985642] ip_output+0x79/0x260 [ 49.989173] ? __ip_finish_output+0x340/0x340 [ 49.993747] ip_local_out+0x3a/0x60 [ 49.997625] __ip_queue_xmit+0x1e4/0x600 [ 50.001672] ip_queue_xmit+0x10/0x20 [ 50.005361] dccp_transmit_skb+0x26e/0x420 [ 50.009578] dccp_xmit_packet+0x70/0x170 [ 50.013619] dccp_write_xmit+0x8d/0xb0 [ 50.017487] dccp_sendmsg+0x225/0x3a0 [ 50.021360] inet_sendmsg+0x5f/0x70 [ 50.024989] sock_sendmsg+0x57/0x60 [ 50.028598] ____sys_sendmsg+0x1fc/0x270 [ 50.032635] ? copy_msghdr_from_user+0x5b/0x90 [ 50.037310] ? __lock_acquire+0x4e0/0x17e0 [ 50.041531] ___sys_sendmsg+0x77/0xb0 [ 50.045336] ? find_held_lock+0x35/0xa0 [ 50.049302] ? __fget_files+0xcc/0x1b0 [ 50.053187] ? __fget_files+0xeb/0x1b0 [ 50.057065] ? __fget_light+0x5e/0x70 [ 50.060932] __sys_sendmsg+0x5d/0xb0 [ 50.064654] ? do_syscall_64+0x13/0x80 [ 50.068525] __x64_sys_sendmsg+0x1a/0x20 [ 50.072568] do_syscall_64+0x37/0x80 [ 50.076286] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.081453] RIP: 0033:0x453009 [ 50.084808] 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 [ 50.103772] RSP: 002b:00007f38c698fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.111458] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.118970] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.126227] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.133511] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.140770] R13: 00000000ffffffff R14: 00007f38c69906d4 R15: 0000000000000002 [ 50.148045] CPU: 1 PID: 6137 Comm: syz-executor1 Not tainted 5.11.0-rc2-syzkaller #0 [ 50.156125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.165685] Call Trace: [ 50.168278] [ 50.170454] dump_stack+0xa9/0xd1 [ 50.173919] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 50.179301] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 50.183976] dccp_deliver_input_to_ccids+0x31/0x70 [ 50.188937] dccp_rcv_established+0x49/0x70 [ 50.193271] dccp_v4_do_rcv+0x3b/0x60 [ 50.197084] __sk_receive_skb+0xcc/0x2b0 [ 50.201153] dccp_v4_rcv+0x44b/0x820 [ 50.204874] ip_protocol_deliver_rcu+0x224/0x270 [ 50.209826] ip_local_deliver_finish+0x8d/0x130 [ 50.214502] ip_local_deliver+0x184/0x220 [ 50.218663] ? ip_protocol_deliver_rcu+0x270/0x270 [ 50.223600] ip_rcv_finish+0x3d/0x60 [ 50.227313] ip_rcv+0x162/0x210 [ 50.230684] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 50.235874] ? process_backlog+0xb1/0x2d0 [ 50.240020] __netif_receive_skb_one_core+0x81/0x90 [ 50.245034] __netif_receive_skb+0x13/0x60 [ 50.249457] process_backlog+0x122/0x2d0 [ 50.253527] net_rx_action+0x17d/0x4f0 [ 50.257490] __do_softirq+0xdc/0x452 [ 50.261309] ? ip_finish_output2+0x22b/0xa10 [ 50.265726] asm_call_irq_on_stack+0x12/0x20 [ 50.270142] [ 50.272379] do_softirq_own_stack+0x5c/0x70 [ 50.272624] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 50.276696] do_softirq+0x75/0xb0 [ 50.276705] __local_bh_enable_ip+0x10a/0x110 [ 50.276713] ip_finish_output2+0x24f/0xa10 [ 50.276733] __ip_finish_output+0x11e/0x340 [ 50.276738] ? __ip_finish_output+0x11e/0x340 [ 50.276741] ? ip_output+0x184/0x260 [ 50.276753] ip_finish_output+0x27/0xa0 [ 50.318773] ip_output+0x79/0x260 [ 50.322226] ? __ip_finish_output+0x340/0x340 [ 50.326729] ip_local_out+0x3a/0x60 [ 50.330348] __ip_queue_xmit+0x1e4/0x600 [ 50.334591] ip_queue_xmit+0x10/0x20 [ 50.338286] dccp_transmit_skb+0x26e/0x420 [ 50.342617] dccp_xmit_packet+0x70/0x170 [ 50.346667] dccp_write_xmit+0x8d/0xb0 [ 50.350635] dccp_sendmsg+0x225/0x3a0 [ 50.354514] inet_sendmsg+0x5f/0x70 [ 50.358125] sock_sendmsg+0x57/0x60 [ 50.361740] ____sys_sendmsg+0x1fc/0x270 [ 50.365778] ? copy_msghdr_from_user+0x5b/0x90 [ 50.370340] ? __lock_acquire+0x4e0/0x17e0 [ 50.374563] ___sys_sendmsg+0x77/0xb0 [ 50.378352] ? find_held_lock+0x35/0xa0 [ 50.382329] ? __fget_files+0xcc/0x1b0 [ 50.386209] ? __fget_files+0xeb/0x1b0 [ 50.390090] ? __fget_light+0x5e/0x70 [ 50.393982] __sys_sendmsg+0x5d/0xb0 [ 50.397696] ? do_syscall_64+0x13/0x80 [ 50.401569] __x64_sys_sendmsg+0x1a/0x20 [ 50.405608] do_syscall_64+0x37/0x80 [ 50.409308] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.414586] RIP: 0033:0x453009 [ 50.417936] 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 [ 50.436827] RSP: 002b:00007fe0d0b46c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.444634] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453009 [ 50.452270] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.459610] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.466965] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.474229] R13: 00000000ffffffff R14: 00007fe0d0b476d4 R15: 0000000000000002 [ 50.481510] CPU: 0 PID: 6175 Comm: syz-executor2 Not tainted 5.11.0-rc2-syzkaller #0 [ 50.489615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.493870] net_ratelimit: 267 callbacks suppressed [ 50.493879] dccp_close: ABORT with 24 bytes unread [ 50.498965] Call Trace: [ 50.498969] [ 50.498974] dump_stack+0xa9/0xd1 [ 50.498985] tfrc_rx_hist_sample_rtt.cold.3+0x27/0x4b [ 50.498995] ccid3_hc_rx_packet_recv+0xde/0x3b0 [ 50.499009] dccp_deliver_input_to_ccids+0x31/0x70 [ 50.499018] dccp_rcv_established+0x49/0x70 [ 50.499025] dccp_v4_do_rcv+0x3b/0x60 [ 50.520437] dccp_close: ABORT with 24 bytes unread [ 50.522452] __sk_receive_skb+0xcc/0x2b0 [ 50.522470] dccp_v4_rcv+0x44b/0x820 [ 50.522487] ip_protocol_deliver_rcu+0x224/0x270 [ 50.522499] ip_local_deliver_finish+0x8d/0x130 [ 50.546231] dccp_close: ABORT with 24 bytes unread [ 50.549340] ip_local_deliver+0x184/0x220 [ 50.549355] ? ip_protocol_deliver_rcu+0x270/0x270 [ 50.549373] ip_rcv_finish+0x3d/0x60 [ 50.549379] ip_rcv+0x162/0x210 [ 50.568695] dccp_close: ABORT with 24 bytes unread [ 50.571758] ? ip_rcv_finish_core.isra.20+0x610/0x610 [ 50.571774] ? process_backlog+0xb1/0x2d0 [ 50.571782] __netif_receive_skb_one_core+0x81/0x90 [ 50.571792] __netif_receive_skb+0x13/0x60 [ 50.571798] process_backlog+0x122/0x2d0 [ 50.571811] net_rx_action+0x17d/0x4f0 [ 50.587833] dccp_close: ABORT with 24 bytes unread [ 50.588800] __do_softirq+0xdc/0x452 [ 50.596038] dccp_close: ABORT with 24 bytes unread [ 50.598223] ? ip_finish_output2+0x22b/0xa10 [ 50.619022] dccp_close: ABORT with 24 bytes unread [ 50.620401] asm_call_irq_on_stack+0x12/0x20 [ 50.620412] [ 50.643716] dccp_close: ABORT with 24 bytes unread [ 50.645278] do_softirq_own_stack+0x5c/0x70 [ 50.645289] do_softirq+0x75/0xb0 [ 50.655097] dccp_close: ABORT with 24 bytes unread [ 50.658072] __local_bh_enable_ip+0x10a/0x110 [ 50.658086] ip_finish_output2+0x24f/0xa10 [ 50.658106] __ip_finish_output+0x11e/0x340 [ 50.658110] ? __ip_finish_output+0x11e/0x340 [ 50.658115] ? ip_output+0x184/0x260 [ 50.681741] dccp_close: ABORT with 24 bytes unread [ 50.684296] ip_finish_output+0x27/0xa0 [ 50.684314] ip_output+0x79/0x260 [ 50.684326] ? __ip_finish_output+0x340/0x340 [ 50.684338] ip_local_out+0x3a/0x60 [ 50.698011] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() [ 50.701784] __ip_queue_xmit+0x1e4/0x600 [ 50.701808] ip_queue_xmit+0x10/0x20 [ 50.701814] dccp_transmit_skb+0x26e/0x420 [ 50.701827] dccp_xmit_packet+0x70/0x170 [ 50.735066] dccp_write_xmit+0x8d/0xb0 [ 50.739026] dccp_sendmsg+0x225/0x3a0 [ 50.742816] inet_sendmsg+0x5f/0x70 [ 50.746429] sock_sendmsg+0x57/0x60 [ 50.750043] ____sys_sendmsg+0x1fc/0x270 [ 50.754095] ? copy_msghdr_from_user+0x5b/0x90 [ 50.758671] ? __lock_acquire+0x4e0/0x17e0 [ 50.763088] ___sys_sendmsg+0x77/0xb0 [ 50.767227] ? find_held_lock+0x35/0xa0 [ 50.771185] ? __fget_files+0xcc/0x1b0 [ 50.775064] ? __fget_files+0xeb/0x1b0 [ 50.778937] ? __fget_light+0x5e/0x70 [ 50.782809] __sys_sendmsg+0x5d/0xb0