[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 39.238005] can: request_module (can-proto-0) failed. [ 39.242388] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. 2019/08/01 06:28:15 parsed 1 programs 2019/08/01 06:28:15 executed programs: 0 [ 49.191001] dccp_close: ABORT with 24 bytes unread [ 49.264241] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 49.277630] CPU: 1 PID: 4740 Comm: syz-executor1 Not tainted 5.3.0-rc2+ #1 [ 49.284643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.293999] Call Trace: [ 49.296582] [ 49.298733] dump_stack+0x115/0x167 [ 49.302376] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 49.307583] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 49.312428] ? dccp_parse_options+0x333/0x1000 [ 49.317034] dccp_deliver_input_to_ccids+0xcc/0x220 [ 49.322061] dccp_rcv_established+0x49/0x70 [ 49.326397] dccp_v4_do_rcv+0xf4/0x160 [ 49.330297] __sk_receive_skb+0x2a8/0x9b0 [ 49.334458] ? sk_free+0x30/0x30 [ 49.337848] dccp_v4_rcv+0xbea/0x1bbd [ 49.338536] dccp_close: ABORT with 24 bytes unread [ 49.341660] ip_protocol_deliver_rcu+0x537/0x740 [ 49.341686] ip_local_deliver_finish+0x1ee/0x2f0 [ 49.341700] ip_local_deliver+0x30b/0x460 [ 49.355342] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 49.356108] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 49.378306] ? lock_downgrade+0x900/0x900 [ 49.382446] ? ip_protocol_deliver_rcu+0x740/0x740 [ 49.387377] ip_rcv_finish+0xae/0x180 [ 49.391209] ip_rcv+0xcb/0x2f0 [ 49.394390] ? ip_local_deliver+0x460/0x460 [ 49.398703] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 49.404060] ? ip_local_deliver+0x460/0x460 [ 49.408375] __netif_receive_skb_one_core+0x132/0x190 [ 49.413555] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 49.418737] ? lock_acquire+0x194/0x3e0 [ 49.422697] ? process_backlog+0x183/0x680 [ 49.426928] __netif_receive_skb+0x1f/0x1b0 [ 49.431241] process_backlog+0x1cc/0x680 [ 49.435288] ? __do_softirq+0x248/0x94c [ 49.439263] net_rx_action+0x42d/0xd50 [ 49.443139] ? mark_lock+0xc3/0x11c0 [ 49.446847] ? napi_complete_done+0x3d0/0x3d0 [ 49.451364] __do_softirq+0x248/0x94c [ 49.455163] ? ip_finish_output2+0x6b1/0x2220 [ 49.459650] do_softirq_own_stack+0x2a/0x40 [ 49.463956] [ 49.466180] do_softirq.part.17+0x11a/0x150 [ 49.470488] __local_bh_enable_ip+0x1ee/0x230 [ 49.474972] ip_finish_output2+0x6da/0x2220 [ 49.479295] ? ip_frag_next+0x970/0x970 [ 49.483274] __ip_finish_output+0x382/0xa90 [ 49.487583] ? __ip_finish_output+0x382/0xa90 [ 49.492075] ip_finish_output+0x27/0x170 [ 49.496127] ip_output+0x1b3/0x5d0 [ 49.499655] ? ip_mc_output+0xd40/0xd40 [ 49.503621] ? __ip_finish_output+0xa90/0xa90 [ 49.508113] ip_local_out+0x7a/0x140 [ 49.511817] __ip_queue_xmit+0x6f6/0x1df0 [ 49.515952] ? __skb_checksum+0x810/0x810 [ 49.520083] ? skb_send_sock_locked+0x760/0x760 [ 49.524736] ? reqsk_fastopen_remove+0x500/0x500 [ 49.529483] ? dccp_insert_options+0x1e2/0xb20 [ 49.534068] ip_queue_xmit+0x45/0x70 [ 49.537769] dccp_transmit_skb+0xb76/0x1290 [ 49.542089] dccp_xmit_packet+0x1a0/0x580 [ 49.546246] dccp_write_xmit+0x128/0x180 [ 49.550300] dccp_sendmsg+0x676/0xd90 [ 49.554100] ? dccp_disconnect+0xaa0/0xaa0 [ 49.558320] ? __might_sleep+0x95/0x190 [ 49.562283] ? __kasan_check_write+0x14/0x20 [ 49.566681] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 49.571684] ? aa_sk_perm+0x12c/0x520 [ 49.575471] ? copy_msghdr_from_user+0x20d/0x3f0 [ 49.580229] inet_sendmsg+0xbd/0xe0 [ 49.583847] ? inet_send_prepare+0x3b0/0x3b0 [ 49.588238] sock_sendmsg+0xdf/0x110 [ 49.591941] ___sys_sendmsg+0x658/0x990 [ 49.595908] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 49.600677] ? __fget+0x2d1/0x440 [ 49.604127] ? __x64_sys_dup2+0x2f0/0x2f0 [ 49.608262] ? __local_bh_enable_ip+0x161/0x230 [ 49.612925] ? _raw_spin_unlock_bh+0x30/0x40 [ 49.617329] ? __fget_light+0x17f/0x1f0 [ 49.621307] ? fput_many+0x1b/0x130 [ 49.624927] ? __fdget+0xe/0x10 [ 49.628205] __sys_sendmsg+0xd9/0x180 [ 49.631991] ? __sys_sendmsg_sock+0xb0/0xb0 [ 49.636341] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.641705] __x64_sys_sendmsg+0x73/0xb0 [ 49.645756] do_syscall_64+0xd6/0x550 [ 49.649553] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.655077] RIP: 0033:0x452f89 [ 49.658261] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.677251] RSP: 002b:00007f152c256c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 49.684948] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 49.692221] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 49.699505] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 49.706761] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 49.714016] R13: 00000000ffffffff R14: 00007f152c2576d4 R15: 0000000000000002 [ 49.721312] CPU: 0 PID: 4759 Comm: syz-executor3 Not tainted 5.3.0-rc2+ #1 [ 49.729378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.744470] Call Trace: [ 49.747060] [ 49.749213] dump_stack+0x115/0x167 [ 49.752857] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 49.758058] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 49.762543] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 49.762902] ? dccp_parse_options+0x333/0x1000 [ 49.780647] dccp_deliver_input_to_ccids+0xcc/0x220 [ 49.785654] dccp_rcv_established+0x49/0x70 [ 49.789965] dccp_v4_do_rcv+0xf4/0x160 [ 49.793849] __sk_receive_skb+0x2a8/0x9b0 [ 49.797994] ? sk_free+0x30/0x30 [ 49.801362] dccp_v4_rcv+0xbea/0x1bbd [ 49.805197] ip_protocol_deliver_rcu+0x537/0x740 [ 49.809949] ip_local_deliver_finish+0x1ee/0x2f0 [ 49.814696] ip_local_deliver+0x30b/0x460 [ 49.818836] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 49.823756] ? lock_downgrade+0x900/0x900 [ 49.827899] ? ip_protocol_deliver_rcu+0x740/0x740 [ 49.833830] ip_rcv_finish+0xae/0x180 [ 49.837618] ip_rcv+0xcb/0x2f0 [ 49.840803] ? ip_local_deliver+0x460/0x460 [ 49.845116] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 49.850476] ? ip_local_deliver+0x460/0x460 [ 49.854788] __netif_receive_skb_one_core+0x132/0x190 [ 49.859969] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 49.865153] ? lock_acquire+0x194/0x3e0 [ 49.869112] ? process_backlog+0x183/0x680 [ 49.873342] __netif_receive_skb+0x1f/0x1b0 [ 49.877657] process_backlog+0x1cc/0x680 [ 49.881703] ? __do_softirq+0x248/0x94c [ 49.885679] net_rx_action+0x42d/0xd50 [ 49.889558] ? mark_lock+0xc3/0x11c0 [ 49.893286] ? napi_complete_done+0x3d0/0x3d0 [ 49.897797] __do_softirq+0x248/0x94c [ 49.901600] ? ip_finish_output2+0x6b1/0x2220 [ 49.906088] do_softirq_own_stack+0x2a/0x40 [ 49.910394] [ 49.912620] do_softirq.part.17+0x11a/0x150 [ 49.916933] __local_bh_enable_ip+0x1ee/0x230 [ 49.921416] ip_finish_output2+0x6da/0x2220 [ 49.925726] ? retint_kernel+0x10/0x10 [ 49.929611] ? ip_frag_next+0x970/0x970 [ 49.933577] ? ipv4_mtu+0x152/0x350 [ 49.937204] __ip_finish_output+0x382/0xa90 [ 49.941513] ? __ip_finish_output+0x382/0xa90 [ 49.946004] ip_finish_output+0x27/0x170 [ 49.950056] ip_output+0x1b3/0x5d0 [ 49.953591] ? ip_mc_output+0xd40/0xd40 [ 49.957556] ? __ip_finish_output+0xa90/0xa90 [ 49.962049] ip_local_out+0x7a/0x140 [ 49.965752] __ip_queue_xmit+0x6f6/0x1df0 [ 49.969882] ? __skb_checksum+0x810/0x810 [ 49.974015] ? skb_send_sock_locked+0x760/0x760 [ 49.978755] ? reqsk_fastopen_remove+0x500/0x500 [ 49.983501] ? dccp_insert_options+0x1e2/0xb20 [ 49.988083] ip_queue_xmit+0x45/0x70 [ 49.991787] dccp_transmit_skb+0xb76/0x1290 [ 49.996112] dccp_xmit_packet+0x1a0/0x580 [ 50.000251] dccp_write_xmit+0x128/0x180 [ 50.004306] dccp_sendmsg+0x676/0xd90 [ 50.008105] ? dccp_disconnect+0xaa0/0xaa0 [ 50.012323] ? __might_sleep+0x95/0x190 [ 50.016286] ? __kasan_check_write+0x14/0x20 [ 50.020683] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 50.025597] ? aa_sk_perm+0x12c/0x520 [ 50.029385] ? copy_msghdr_from_user+0x20d/0x3f0 [ 50.034143] inet_sendmsg+0xbd/0xe0 [ 50.037755] ? inet_send_prepare+0x3b0/0x3b0 [ 50.042146] sock_sendmsg+0xdf/0x110 [ 50.045857] ___sys_sendmsg+0x658/0x990 [ 50.049828] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 50.054607] ? __fget+0x2d1/0x440 [ 50.058056] ? __x64_sys_dup2+0x2f0/0x2f0 [ 50.062200] ? __local_bh_enable_ip+0x161/0x230 [ 50.066860] ? _raw_spin_unlock_bh+0x30/0x40 [ 50.071261] ? __fget_light+0x17f/0x1f0 [ 50.075220] ? fput_many+0x1b/0x130 [ 50.078835] ? __fdget+0xe/0x10 [ 50.082108] __sys_sendmsg+0xd9/0x180 [ 50.085906] ? __sys_sendmsg_sock+0xb0/0xb0 [ 50.090250] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.095609] __x64_sys_sendmsg+0x73/0xb0 [ 50.099661] do_syscall_64+0xd6/0x550 [ 50.103454] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.108629] RIP: 0033:0x452f89 [ 50.111813] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.130797] RSP: 002b:00007f4552b51c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.138491] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 50.145925] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.153179] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.160436] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.167694] R13: 00000000ffffffff R14: 00007f4552b526d4 R15: 0000000000000002 [ 50.174985] CPU: 1 PID: 4765 Comm: syz-executor2 Not tainted 5.3.0-rc2+ #1 [ 50.182002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.191357] Call Trace: [ 50.193936] [ 50.196087] dump_stack+0x115/0x167 [ 50.199722] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 50.204919] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 50.209678] ? dccp_parse_options+0x333/0x1000 [ 50.214387] dccp_deliver_input_to_ccids+0xcc/0x220 [ 50.219407] dccp_rcv_established+0x49/0x70 [ 50.223727] dccp_v4_do_rcv+0xf4/0x160 [ 50.225685] dccp_close: ABORT with 24 bytes unread [ 50.227637] __sk_receive_skb+0x2a8/0x9b0 [ 50.227656] ? sk_free+0x30/0x30 [ 50.227683] dccp_v4_rcv+0xbea/0x1bbd [ 50.227707] ip_protocol_deliver_rcu+0x537/0x740 [ 50.248898] ip_local_deliver_finish+0x1ee/0x2f0 [ 50.253662] ip_local_deliver+0x30b/0x460 [ 50.257821] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 50.262749] ? lock_downgrade+0x900/0x900 [ 50.266902] ? ip_protocol_deliver_rcu+0x740/0x740 [ 50.267216] dccp_close: ABORT with 24 bytes unread [ 50.271832] ip_rcv_finish+0xae/0x180 [ 50.271842] ip_rcv+0xcb/0x2f0 [ 50.271852] ? ip_local_deliver+0x460/0x460 [ 50.271865] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 50.271880] ? ip_local_deliver+0x460/0x460 [ 50.271890] __netif_receive_skb_one_core+0x132/0x190 [ 50.286410] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 50.288070] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 50.288085] ? lock_acquire+0x194/0x3e0 [ 50.288092] ? process_backlog+0x183/0x680 [ 50.329413] __netif_receive_skb+0x1f/0x1b0 [ 50.333725] process_backlog+0x1cc/0x680 [ 50.337773] ? __do_softirq+0x248/0x94c [ 50.341747] net_rx_action+0x42d/0xd50 [ 50.345621] ? mark_lock+0xc3/0x11c0 [ 50.349328] ? napi_complete_done+0x3d0/0x3d0 [ 50.353838] __do_softirq+0x248/0x94c [ 50.357634] ? ip_finish_output2+0x6b1/0x2220 [ 50.362118] do_softirq_own_stack+0x2a/0x40 [ 50.366422] [ 50.368645] do_softirq.part.17+0x11a/0x150 [ 50.372951] __local_bh_enable_ip+0x1ee/0x230 [ 50.377436] ip_finish_output2+0x6da/0x2220 [ 50.381757] ? ip_frag_next+0x970/0x970 [ 50.385738] __ip_finish_output+0x382/0xa90 [ 50.390053] ? __ip_finish_output+0x382/0xa90 [ 50.394544] ip_finish_output+0x27/0x170 [ 50.398597] ip_output+0x1b3/0x5d0 [ 50.402129] ? ip_mc_output+0xd40/0xd40 [ 50.406097] ? __ip_finish_output+0xa90/0xa90 [ 50.410590] ip_local_out+0x7a/0x140 [ 50.414294] __ip_queue_xmit+0x6f6/0x1df0 [ 50.418429] ? __skb_checksum+0x810/0x810 [ 50.422561] ? skb_send_sock_locked+0x760/0x760 [ 50.427213] ? reqsk_fastopen_remove+0x500/0x500 [ 50.431953] ? dccp_insert_options+0x1e2/0xb20 [ 50.436533] ip_queue_xmit+0x45/0x70 [ 50.440233] dccp_transmit_skb+0xb76/0x1290 [ 50.444557] dccp_xmit_packet+0x1a0/0x580 [ 50.448695] dccp_write_xmit+0x128/0x180 [ 50.452752] dccp_sendmsg+0x676/0xd90 [ 50.456551] ? dccp_disconnect+0xaa0/0xaa0 [ 50.460770] ? __might_sleep+0x95/0x190 [ 50.464727] ? __kasan_check_write+0x14/0x20 [ 50.469128] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 50.474042] ? aa_sk_perm+0x12c/0x520 [ 50.477828] ? copy_msghdr_from_user+0x20d/0x3f0 [ 50.482580] inet_sendmsg+0xbd/0xe0 [ 50.486193] ? inet_send_prepare+0x3b0/0x3b0 [ 50.490588] sock_sendmsg+0xdf/0x110 [ 50.494291] ___sys_sendmsg+0x658/0x990 [ 50.498274] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 50.503044] ? __fget+0x2d1/0x440 [ 50.506498] ? __x64_sys_dup2+0x2f0/0x2f0 [ 50.510643] ? lock_downgrade+0x900/0x900 [ 50.514771] ? __switch_to_asm+0x34/0x70 [ 50.518819] ? __switch_to_asm+0x34/0x70 [ 50.522875] ? __fget_light+0x17f/0x1f0 [ 50.526833] ? _raw_spin_unlock_irq+0x27/0x70 [ 50.531320] ? __fdget+0xe/0x10 [ 50.534593] __sys_sendmsg+0xd9/0x180 [ 50.538380] ? __sys_sendmsg_sock+0xb0/0xb0 [ 50.542721] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.548077] __x64_sys_sendmsg+0x73/0xb0 [ 50.552131] do_syscall_64+0xd6/0x550 [ 50.555926] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.561102] RIP: 0033:0x452f89 [ 50.564285] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.583276] RSP: 002b:00007f1136d0fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 50.590986] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 50.598244] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 50.605504] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 50.612761] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 50.620122] R13: 00000000ffffffff R14: 00007f1136d106d4 R15: 0000000000000002 [ 50.627413] CPU: 0 PID: 4780 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 50.634435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.641029] dccp_close: ABORT with 24 bytes unread [ 50.643791] Call Trace: [ 50.643795] [ 50.643807] dump_stack+0x115/0x167 [ 50.643826] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 50.662248] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 50.668528] ? dccp_parse_options+0x333/0x1000 [ 50.673134] dccp_deliver_input_to_ccids+0xcc/0x220 [ 50.678160] dccp_rcv_established+0x49/0x70 [ 50.681794] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 50.682476] dccp_v4_do_rcv+0xf4/0x160 [ 50.682489] __sk_receive_skb+0x2a8/0x9b0 [ 50.703661] ? sk_free+0x30/0x30 [ 50.707033] dccp_v4_rcv+0xbea/0x1bbd [ 50.710844] ip_protocol_deliver_rcu+0x537/0x740 [ 50.715600] ip_local_deliver_finish+0x1ee/0x2f0 [ 50.720352] ip_local_deliver+0x30b/0x460 [ 50.724496] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 50.729416] ? lock_downgrade+0x900/0x900 [ 50.733554] ? ip_protocol_deliver_rcu+0x740/0x740 [ 50.738481] ip_rcv_finish+0xae/0x180 [ 50.742271] ip_rcv+0xcb/0x2f0 [ 50.745450] ? ip_local_deliver+0x460/0x460 [ 50.749760] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 50.755114] ? ip_local_deliver+0x460/0x460 [ 50.759424] __netif_receive_skb_one_core+0x132/0x190 [ 50.764600] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 50.769778] ? lock_acquire+0x194/0x3e0 [ 50.773739] ? process_backlog+0x183/0x680 [ 50.777966] __netif_receive_skb+0x1f/0x1b0 [ 50.782279] process_backlog+0x1cc/0x680 [ 50.786323] ? __do_softirq+0x248/0x94c [ 50.790298] net_rx_action+0x42d/0xd50 [ 50.794172] ? mark_lock+0xc3/0x11c0 [ 50.797879] ? napi_complete_done+0x3d0/0x3d0 [ 50.802387] __do_softirq+0x248/0x94c [ 50.806182] ? ip_finish_output2+0x6b1/0x2220 [ 50.810669] do_softirq_own_stack+0x2a/0x40 [ 50.814975] [ 50.817197] do_softirq.part.17+0x11a/0x150 [ 50.821505] __local_bh_enable_ip+0x1ee/0x230 [ 50.825990] ip_finish_output2+0x6da/0x2220 [ 50.830428] ? ip_frag_next+0x970/0x970 [ 50.834408] __ip_finish_output+0x382/0xa90 [ 50.838714] ? __ip_finish_output+0x382/0xa90 [ 50.843206] ip_finish_output+0x27/0x170 [ 50.847430] ip_output+0x1b3/0x5d0 [ 50.850958] ? ip_mc_output+0xd40/0xd40 [ 50.854926] ? __ip_finish_output+0xa90/0xa90 [ 50.859423] ip_local_out+0x7a/0x140 [ 50.863131] __ip_queue_xmit+0x6f6/0x1df0 [ 50.867263] ? __skb_checksum+0x810/0x810 [ 50.871393] ? skb_send_sock_locked+0x760/0x760 [ 50.876046] ? reqsk_fastopen_remove+0x500/0x500 [ 50.880790] ? dccp_insert_options+0x1e2/0xb20 [ 50.885369] ip_queue_xmit+0x45/0x70 [ 50.889069] dccp_transmit_skb+0xb76/0x1290 [ 50.893399] dccp_xmit_packet+0x1a0/0x580 [ 50.897537] dccp_write_xmit+0x128/0x180 [ 50.901590] dccp_sendmsg+0x676/0xd90 [ 50.905388] ? dccp_disconnect+0xaa0/0xaa0 [ 50.909615] ? __might_sleep+0x95/0x190 [ 50.913572] ? __kasan_check_write+0x14/0x20 [ 50.917966] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 50.922882] ? aa_sk_perm+0x12c/0x520 [ 50.926670] ? copy_msghdr_from_user+0x20d/0x3f0 [ 50.931426] inet_sendmsg+0xbd/0xe0 [ 50.935037] ? inet_send_prepare+0x3b0/0x3b0 [ 50.939427] sock_sendmsg+0xdf/0x110 [ 50.943129] ___sys_sendmsg+0x658/0x990 [ 50.947098] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 50.951863] ? __fget+0x2d1/0x440 [ 50.955315] ? __x64_sys_dup2+0x2f0/0x2f0 [ 50.959448] ? __local_bh_enable_ip+0x161/0x230 [ 50.964102] ? _raw_spin_unlock_bh+0x30/0x40 [ 50.968502] ? __fget_light+0x17f/0x1f0 [ 50.972460] ? fput_many+0x1b/0x130 [ 50.976075] ? __fdget+0xe/0x10 [ 50.979354] __sys_sendmsg+0xd9/0x180 [ 50.983144] ? __sys_sendmsg_sock+0xb0/0xb0 [ 50.987491] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.992850] __x64_sys_sendmsg+0x73/0xb0 [ 50.996902] do_syscall_64+0xd6/0x550 [ 51.000713] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.005887] RIP: 0033:0x452f89 [ 51.009067] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.027952] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 51.035646] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 51.042902] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.050157] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 51.057414] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.064671] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 51.071964] CPU: 1 PID: 4789 Comm: syz-executor Not tainted 5.3.0-rc2+ #1 [ 51.078561] dccp_close: ABORT with 24 bytes unread [ 51.078883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.093256] Call Trace: [ 51.095843] [ 51.097992] dump_stack+0x115/0x167 [ 51.101631] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 51.105546] dccp_close: ABORT with 24 bytes unread [ 51.106828] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 51.106835] ? dccp_parse_options+0x333/0x1000 [ 51.106857] dccp_deliver_input_to_ccids+0xcc/0x220 [ 51.106867] dccp_rcv_established+0x49/0x70 [ 51.123083] dccp_close: ABORT with 24 bytes unread [ 51.126103] dccp_v4_do_rcv+0xf4/0x160 [ 51.126119] __sk_receive_skb+0x2a8/0x9b0 [ 51.126136] ? sk_free+0x30/0x30 [ 51.126160] dccp_v4_rcv+0xbea/0x1bbd [ 51.126186] ip_protocol_deliver_rcu+0x537/0x740 [ 51.155316] ip_local_deliver_finish+0x1ee/0x2f0 [ 51.160083] ip_local_deliver+0x30b/0x460 [ 51.164237] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 51.169169] ? lock_downgrade+0x900/0x900 [ 51.173326] ? ip_protocol_deliver_rcu+0x740/0x740 [ 51.178269] ip_rcv_finish+0xae/0x180 [ 51.182074] ip_rcv+0xcb/0x2f0 [ 51.185275] ? ip_local_deliver+0x460/0x460 [ 51.189615] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 51.194990] ? ip_local_deliver+0x460/0x460 [ 51.199325] __netif_receive_skb_one_core+0x132/0x190 [ 51.204524] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 51.209732] ? lock_acquire+0x194/0x3e0 [ 51.209834] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 51.213693] ? process_backlog+0x183/0x680 [ 51.213707] __netif_receive_skb+0x1f/0x1b0 [ 51.213718] process_backlog+0x1cc/0x680 [ 51.213726] ? __do_softirq+0x248/0x94c [ 51.213751] net_rx_action+0x42d/0xd50 [ 51.213762] ? mark_lock+0xc3/0x11c0 [ 51.213778] ? napi_complete_done+0x3d0/0x3d0 [ 51.255511] __do_softirq+0x248/0x94c [ 51.259313] ? ip_finish_output2+0x6b1/0x2220 [ 51.263801] do_softirq_own_stack+0x2a/0x40 [ 51.268106] [ 51.270334] do_softirq.part.17+0x11a/0x150 [ 51.274643] __local_bh_enable_ip+0x1ee/0x230 [ 51.279126] ip_finish_output2+0x6da/0x2220 [ 51.283448] ? ip_frag_next+0x970/0x970 [ 51.287425] __ip_finish_output+0x382/0xa90 [ 51.291734] ? __ip_finish_output+0x382/0xa90 [ 51.296222] ip_finish_output+0x27/0x170 [ 51.300272] ip_output+0x1b3/0x5d0 [ 51.303803] ? ip_mc_output+0xd40/0xd40 [ 51.307769] ? __ip_finish_output+0xa90/0xa90 [ 51.312267] ip_local_out+0x7a/0x140 [ 51.315975] __ip_queue_xmit+0x6f6/0x1df0 [ 51.320109] ? __skb_checksum+0x810/0x810 [ 51.324239] ? skb_send_sock_locked+0x760/0x760 [ 51.328893] ? reqsk_fastopen_remove+0x500/0x500 [ 51.333635] ? dccp_insert_options+0x1e2/0xb20 [ 51.338212] ip_queue_xmit+0x45/0x70 [ 51.341913] dccp_transmit_skb+0xb76/0x1290 [ 51.346231] dccp_xmit_packet+0x1a0/0x580 [ 51.350373] dccp_write_xmit+0x128/0x180 [ 51.354425] dccp_sendmsg+0x676/0xd90 [ 51.358220] ? dccp_disconnect+0xaa0/0xaa0 [ 51.362436] ? __might_sleep+0x95/0x190 [ 51.366395] ? __kasan_check_write+0x14/0x20 [ 51.370789] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 51.375703] ? aa_sk_perm+0x12c/0x520 [ 51.379487] ? copy_msghdr_from_user+0x20d/0x3f0 [ 51.384242] inet_sendmsg+0xbd/0xe0 [ 51.387854] ? inet_send_prepare+0x3b0/0x3b0 [ 51.392245] sock_sendmsg+0xdf/0x110 [ 51.395948] ___sys_sendmsg+0x658/0x990 [ 51.400001] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 51.404767] ? __fget+0x2d1/0x440 [ 51.408218] ? __x64_sys_dup2+0x2f0/0x2f0 [ 51.412355] ? lock_downgrade+0x900/0x900 [ 51.416491] ? __switch_to_asm+0x34/0x70 [ 51.420546] ? __switch_to_asm+0x34/0x70 [ 51.424602] ? __fget_light+0x17f/0x1f0 [ 51.428563] ? _raw_spin_unlock_irq+0x27/0x70 [ 51.433050] ? __fdget+0xe/0x10 [ 51.436330] __sys_sendmsg+0xd9/0x180 [ 51.440120] ? __sys_sendmsg_sock+0xb0/0xb0 [ 51.444467] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.449827] __x64_sys_sendmsg+0x73/0xb0 [ 51.453880] do_syscall_64+0xd6/0x550 [ 51.457671] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.462933] RIP: 0033:0x452f89 [ 51.466114] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.485112] RSP: 002b:00007f5f643d3c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 51.492977] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 51.500232] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.507504] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 51.514761] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.522015] R13: 00000000ffffffff R14: 00007f5f643d46d4 R15: 0000000000000002 [ 51.529313] CPU: 0 PID: 4812 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 51.532231] dccp_close: ABORT with 24 bytes unread [ 51.536317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.536321] Call Trace: [ 51.536325] [ 51.536337] dump_stack+0x115/0x167 [ 51.536355] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 51.545007] dccp_close: ABORT with 24 bytes unread [ 51.550616] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 51.550624] ? dccp_parse_options+0x333/0x1000 [ 51.550645] dccp_deliver_input_to_ccids+0xcc/0x220 [ 51.550656] dccp_rcv_established+0x49/0x70 [ 51.550670] dccp_v4_do_rcv+0xf4/0x160 [ 51.550682] __sk_receive_skb+0x2a8/0x9b0 [ 51.595789] ? sk_free+0x30/0x30 [ 51.599193] dccp_v4_rcv+0xbea/0x1bbd [ 51.603020] ip_protocol_deliver_rcu+0x537/0x740 [ 51.607835] ip_local_deliver_finish+0x1ee/0x2f0 [ 51.608104] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 51.612586] ip_local_deliver+0x30b/0x460 [ 51.612595] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 51.612601] ? lock_downgrade+0x900/0x900 [ 51.612612] ? ip_protocol_deliver_rcu+0x740/0x740 [ 51.612633] ip_rcv_finish+0xae/0x180 [ 51.612643] ip_rcv+0xcb/0x2f0 [ 51.612653] ? ip_local_deliver+0x460/0x460 [ 51.612672] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 51.612684] ? ip_local_deliver+0x460/0x460 [ 51.665319] __netif_receive_skb_one_core+0x132/0x190 [ 51.670500] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 51.675684] ? lock_acquire+0x194/0x3e0 [ 51.679646] ? process_backlog+0x183/0x680 [ 51.683897] __netif_receive_skb+0x1f/0x1b0 [ 51.688208] process_backlog+0x1cc/0x680 [ 51.692341] ? __do_softirq+0x248/0x94c [ 51.696317] net_rx_action+0x42d/0xd50 [ 51.700196] ? mark_lock+0xc3/0x11c0 [ 51.703908] ? napi_complete_done+0x3d0/0x3d0 [ 51.708425] __do_softirq+0x248/0x94c [ 51.712223] ? ip_finish_output2+0x6b1/0x2220 [ 51.716715] do_softirq_own_stack+0x2a/0x40 [ 51.721018] [ 51.723240] do_softirq.part.17+0x11a/0x150 [ 51.727556] __local_bh_enable_ip+0x1ee/0x230 [ 51.732039] ip_finish_output2+0x6da/0x2220 [ 51.736380] ? ip_frag_next+0x970/0x970 [ 51.740360] __ip_finish_output+0x382/0xa90 [ 51.744667] ? __ip_finish_output+0x382/0xa90 [ 51.749157] ip_finish_output+0x27/0x170 [ 51.753210] ip_output+0x1b3/0x5d0 [ 51.756740] ? ip_mc_output+0xd40/0xd40 [ 51.760794] ? __ip_finish_output+0xa90/0xa90 [ 51.765287] ip_local_out+0x7a/0x140 [ 51.769016] __ip_queue_xmit+0x6f6/0x1df0 [ 51.773152] ? __skb_checksum+0x810/0x810 [ 51.777284] ? skb_send_sock_locked+0x760/0x760 [ 51.781937] ? reqsk_fastopen_remove+0x500/0x500 [ 51.786679] ? dccp_insert_options+0x1e2/0xb20 [ 51.791372] ip_queue_xmit+0x45/0x70 [ 51.795078] dccp_transmit_skb+0xb76/0x1290 [ 51.799398] dccp_xmit_packet+0x1a0/0x580 [ 51.803537] dccp_write_xmit+0x128/0x180 [ 51.807592] dccp_sendmsg+0x676/0xd90 [ 51.811390] ? dccp_disconnect+0xaa0/0xaa0 [ 51.815611] ? __might_sleep+0x95/0x190 [ 51.819574] ? __kasan_check_write+0x14/0x20 [ 51.823970] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 51.829147] ? aa_sk_perm+0x12c/0x520 [ 51.833942] ? copy_msghdr_from_user+0x20d/0x3f0 [ 51.838700] inet_sendmsg+0xbd/0xe0 [ 51.842315] ? inet_send_prepare+0x3b0/0x3b0 [ 51.847673] sock_sendmsg+0xdf/0x110 [ 51.851378] ___sys_sendmsg+0x658/0x990 [ 51.855353] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 51.860123] ? __fget+0x2d1/0x440 [ 51.863575] ? __x64_sys_dup2+0x2f0/0x2f0 [ 51.867715] ? lock_downgrade+0x900/0x900 [ 51.871852] ? __switch_to_asm+0x34/0x70 [ 51.875900] ? __switch_to_asm+0x34/0x70 [ 51.879956] ? __fget_light+0x17f/0x1f0 [ 51.884003] ? _raw_spin_unlock_irq+0x27/0x70 [ 51.888493] ? __fdget+0xe/0x10 [ 51.891772] __sys_sendmsg+0xd9/0x180 [ 51.895560] ? __sys_sendmsg_sock+0xb0/0xb0 [ 51.899906] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.905271] __x64_sys_sendmsg+0x73/0xb0 [ 51.909327] do_syscall_64+0xd6/0x550 [ 51.913121] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.918309] RIP: 0033:0x452f89 [ 51.921489] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.940395] RSP: 002b:00007f6b4977fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 51.948175] RAX: ffffffffffffffda RBX: 000000000071c010 RCX: 0000000000452f89 [ 51.955450] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 51.962705] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 2019/08/01 06:28:20 executed programs: 18 [ 51.969961] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 51.977217] R13: 00000000ffffffff R14: 00007f6b497806d4 R15: 0000000000000004 [ 51.984510] CPU: 1 PID: 4823 Comm: syz-executor1 Not tainted 5.3.0-rc2+ #1 [ 51.991531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.000894] Call Trace: [ 52.003483] [ 52.005648] dump_stack+0x115/0x167 [ 52.009308] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 52.014566] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 52.019331] ? dccp_parse_options+0x333/0x1000 [ 52.023933] dccp_deliver_input_to_ccids+0xcc/0x220 [ 52.028963] dccp_rcv_established+0x49/0x70 [ 52.033293] dccp_v4_do_rcv+0xf4/0x160 [ 52.037190] __sk_receive_skb+0x2a8/0x9b0 [ 52.041351] ? sk_free+0x30/0x30 [ 52.044740] dccp_v4_rcv+0xbea/0x1bbd [ 52.048574] ip_protocol_deliver_rcu+0x537/0x740 [ 52.053350] ip_local_deliver_finish+0x1ee/0x2f0 [ 52.058160] ip_local_deliver+0x30b/0x460 [ 52.062323] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 52.067258] ? lock_downgrade+0x900/0x900 [ 52.071411] ? ip_protocol_deliver_rcu+0x740/0x740 [ 52.076359] ip_rcv_finish+0xae/0x180 [ 52.080178] ip_rcv+0xcb/0x2f0 [ 52.083380] ? ip_local_deliver+0x460/0x460 [ 52.087708] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 52.093090] ? ip_local_deliver+0x460/0x460 [ 52.097425] __netif_receive_skb_one_core+0x132/0x190 [ 52.102626] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 52.107824] ? lock_acquire+0x194/0x3e0 [ 52.111809] ? process_backlog+0x183/0x680 [ 52.116065] __netif_receive_skb+0x1f/0x1b0 [ 52.120409] process_backlog+0x1cc/0x680 [ 52.124480] ? __do_softirq+0x248/0x94c [ 52.128481] net_rx_action+0x42d/0xd50 [ 52.132369] ? mark_lock+0xc3/0x11c0 [ 52.136092] ? napi_complete_done+0x3d0/0x3d0 [ 52.140623] __do_softirq+0x248/0x94c [ 52.144435] ? ip_finish_output2+0x6b1/0x2220 [ 52.148943] do_softirq_own_stack+0x2a/0x40 [ 52.153260] [ 52.155506] do_softirq.part.17+0x11a/0x150 [ 52.159842] __local_bh_enable_ip+0x1ee/0x230 [ 52.160363] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 52.164336] ip_finish_output2+0x6da/0x2220 [ 52.164357] ? ip_frag_next+0x970/0x970 [ 52.164379] __ip_finish_output+0x382/0xa90 [ 52.190099] ? __ip_finish_output+0x382/0xa90 [ 52.194590] ip_finish_output+0x27/0x170 [ 52.198674] ip_output+0x1b3/0x5d0 [ 52.202203] ? ip_mc_output+0xd40/0xd40 [ 52.206170] ? __ip_finish_output+0xa90/0xa90 [ 52.210668] ip_local_out+0x7a/0x140 [ 52.214374] __ip_queue_xmit+0x6f6/0x1df0 [ 52.218509] ? __skb_checksum+0x810/0x810 [ 52.222643] ? skb_send_sock_locked+0x760/0x760 [ 52.227301] ? reqsk_fastopen_remove+0x500/0x500 [ 52.232045] ? dccp_insert_options+0x1e2/0xb20 [ 52.236624] ip_queue_xmit+0x45/0x70 [ 52.240331] dccp_transmit_skb+0xb76/0x1290 [ 52.244656] dccp_xmit_packet+0x1a0/0x580 [ 52.248797] dccp_write_xmit+0x128/0x180 [ 52.252852] dccp_sendmsg+0x676/0xd90 [ 52.256649] ? dccp_disconnect+0xaa0/0xaa0 [ 52.260870] ? __might_sleep+0x95/0x190 [ 52.264831] ? __kasan_check_write+0x14/0x20 [ 52.269230] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 52.274145] ? aa_sk_perm+0x12c/0x520 [ 52.277933] ? copy_msghdr_from_user+0x20d/0x3f0 [ 52.282689] inet_sendmsg+0xbd/0xe0 [ 52.286307] ? inet_send_prepare+0x3b0/0x3b0 [ 52.290701] sock_sendmsg+0xdf/0x110 [ 52.294416] ___sys_sendmsg+0x658/0x990 [ 52.298383] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 52.303178] ? __fget+0x2d1/0x440 [ 52.306639] ? __x64_sys_dup2+0x2f0/0x2f0 [ 52.310777] ? __local_bh_enable_ip+0x161/0x230 [ 52.315438] ? _raw_spin_unlock_bh+0x30/0x40 [ 52.319839] ? __fget_light+0x17f/0x1f0 [ 52.323798] ? fput_many+0x1b/0x130 [ 52.327417] ? __fdget+0xe/0x10 [ 52.330690] __sys_sendmsg+0xd9/0x180 [ 52.334476] ? __sys_sendmsg_sock+0xb0/0xb0 [ 52.338822] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.344180] __x64_sys_sendmsg+0x73/0xb0 [ 52.348280] do_syscall_64+0xd6/0x550 [ 52.352076] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.357254] RIP: 0033:0x452f89 [ 52.360435] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.379323] RSP: 002b:00007f152c256c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 52.387019] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 52.394297] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 52.401579] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 52.408834] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 52.416095] R13: 00000000ffffffff R14: 00007f152c2576d4 R15: 0000000000000002 [ 52.423382] CPU: 0 PID: 4849 Comm: syz-executor4 Not tainted 5.3.0-rc2+ #1 [ 52.430397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.439758] Call Trace: [ 52.442338] [ 52.444498] dump_stack+0x115/0x167 [ 52.448149] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 52.453349] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 52.458104] ? dccp_parse_options+0x333/0x1000 [ 52.462707] dccp_deliver_input_to_ccids+0xcc/0x220 [ 52.467736] dccp_rcv_established+0x49/0x70 [ 52.472062] dccp_v4_do_rcv+0xf4/0x160 [ 52.475961] __sk_receive_skb+0x2a8/0x9b0 [ 52.480122] ? sk_free+0x30/0x30 [ 52.483682] dccp_v4_rcv+0xbea/0x1bbd [ 52.487507] ip_protocol_deliver_rcu+0x537/0x740 [ 52.492295] ip_local_deliver_finish+0x1ee/0x2f0 [ 52.497063] ip_local_deliver+0x30b/0x460 [ 52.501305] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 52.506237] ? lock_downgrade+0x900/0x900 [ 52.507186] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 52.510386] ? ip_protocol_deliver_rcu+0x740/0x740 [ 52.510407] ip_rcv_finish+0xae/0x180 [ 52.510417] ip_rcv+0xcb/0x2f0 [ 52.510427] ? ip_local_deliver+0x460/0x460 [ 52.510440] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 52.510456] ? ip_local_deliver+0x460/0x460 [ 52.510467] __netif_receive_skb_one_core+0x132/0x190 [ 52.554675] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 52.559864] ? lock_acquire+0x194/0x3e0 [ 52.563823] ? process_backlog+0x183/0x680 [ 52.568051] __netif_receive_skb+0x1f/0x1b0 [ 52.572365] process_backlog+0x1cc/0x680 [ 52.576414] ? __do_softirq+0x248/0x94c [ 52.580388] net_rx_action+0x42d/0xd50 [ 52.584263] ? mark_lock+0xc3/0x11c0 [ 52.587973] ? napi_complete_done+0x3d0/0x3d0 [ 52.592486] __do_softirq+0x248/0x94c [ 52.596284] ? ip_finish_output2+0x6b1/0x2220 [ 52.600859] do_softirq_own_stack+0x2a/0x40 [ 52.605164] [ 52.607392] do_softirq.part.17+0x11a/0x150 [ 52.611702] __local_bh_enable_ip+0x1ee/0x230 [ 52.616190] ip_finish_output2+0x6da/0x2220 [ 52.620513] ? ip_frag_next+0x970/0x970 [ 52.624495] __ip_finish_output+0x382/0xa90 [ 52.628813] ? __ip_finish_output+0x382/0xa90 [ 52.633305] ip_finish_output+0x27/0x170 [ 52.637354] ip_output+0x1b3/0x5d0 [ 52.640885] ? ip_mc_output+0xd40/0xd40 [ 52.644853] ? __ip_finish_output+0xa90/0xa90 [ 52.649347] ip_local_out+0x7a/0x140 [ 52.653061] __ip_queue_xmit+0x6f6/0x1df0 [ 52.657203] ? __skb_checksum+0x810/0x810 [ 52.661338] ? skb_send_sock_locked+0x760/0x760 [ 52.667469] ? reqsk_fastopen_remove+0x500/0x500 [ 52.672214] ? dccp_insert_options+0x1e2/0xb20 [ 52.676824] ip_queue_xmit+0x45/0x70 [ 52.680531] dccp_transmit_skb+0xb76/0x1290 [ 52.684857] dccp_xmit_packet+0x1a0/0x580 [ 52.689000] dccp_write_xmit+0x128/0x180 [ 52.693066] dccp_sendmsg+0x676/0xd90 [ 52.696870] ? dccp_disconnect+0xaa0/0xaa0 [ 52.701095] ? __might_sleep+0x95/0x190 [ 52.705068] ? __kasan_check_write+0x14/0x20 [ 52.709559] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 52.714482] ? aa_sk_perm+0x12c/0x520 [ 52.718273] ? copy_msghdr_from_user+0x20d/0x3f0 [ 52.723037] inet_sendmsg+0xbd/0xe0 [ 52.726664] ? inet_send_prepare+0x3b0/0x3b0 [ 52.731060] sock_sendmsg+0xdf/0x110 [ 52.734773] ___sys_sendmsg+0x658/0x990 [ 52.738745] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 52.743534] ? __fget+0x2d1/0x440 [ 52.746992] ? __x64_sys_dup2+0x2f0/0x2f0 [ 52.751131] ? __local_bh_enable_ip+0x161/0x230 [ 52.755792] ? _raw_spin_unlock_bh+0x30/0x40 [ 52.760197] ? __fget_light+0x17f/0x1f0 [ 52.764161] ? fput_many+0x1b/0x130 [ 52.767783] ? __fdget+0xe/0x10 [ 52.771066] __sys_sendmsg+0xd9/0x180 [ 52.774860] ? __sys_sendmsg_sock+0xb0/0xb0 [ 52.779209] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.784592] __x64_sys_sendmsg+0x73/0xb0 [ 52.788652] do_syscall_64+0xd6/0x550 [ 52.792451] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.797633] RIP: 0033:0x452f89 [ 52.800818] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.819715] RSP: 002b:00007f68bd687c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 52.827426] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 52.834722] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 52.841985] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 52.849245] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 52.856541] R13: 00000000ffffffff R14: 00007f68bd6886d4 R15: 0000000000000002 [ 52.863840] CPU: 1 PID: 4870 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 52.870864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.880236] Call Trace: [ 52.882910] [ 52.885084] dump_stack+0x115/0x167 [ 52.888727] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 52.893929] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 52.894686] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 52.898700] ? dccp_parse_options+0x333/0x1000 [ 52.898721] dccp_deliver_input_to_ccids+0xcc/0x220 [ 52.898731] dccp_rcv_established+0x49/0x70 [ 52.925798] dccp_v4_do_rcv+0xf4/0x160 [ 52.929684] __sk_receive_skb+0x2a8/0x9b0 [ 52.933835] ? sk_free+0x30/0x30 [ 52.937222] dccp_v4_rcv+0xbea/0x1bbd [ 52.941044] ip_protocol_deliver_rcu+0x537/0x740 [ 52.945805] ip_local_deliver_finish+0x1ee/0x2f0 [ 52.950574] ip_local_deliver+0x30b/0x460 [ 52.954717] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 52.959636] ? lock_downgrade+0x900/0x900 [ 52.963781] ? ip_protocol_deliver_rcu+0x740/0x740 [ 52.968716] ip_rcv_finish+0xae/0x180 [ 52.972514] ip_rcv+0xcb/0x2f0 [ 52.975701] ? ip_local_deliver+0x460/0x460 [ 52.980022] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 52.985391] ? ip_local_deliver+0x460/0x460 [ 52.989708] __netif_receive_skb_one_core+0x132/0x190 [ 52.994895] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 53.000083] ? lock_acquire+0x194/0x3e0 [ 53.004054] ? process_backlog+0x183/0x680 [ 53.008294] __netif_receive_skb+0x1f/0x1b0 [ 53.012616] process_backlog+0x1cc/0x680 [ 53.016671] ? __do_softirq+0x248/0x94c [ 53.020656] net_rx_action+0x42d/0xd50 [ 53.024541] ? mark_lock+0xc3/0x11c0 [ 53.028265] ? napi_complete_done+0x3d0/0x3d0 [ 53.032782] __do_softirq+0x248/0x94c [ 53.036588] ? ip_finish_output2+0x6b1/0x2220 [ 53.041077] do_softirq_own_stack+0x2a/0x40 [ 53.045390] [ 53.047624] do_softirq.part.17+0x11a/0x150 [ 53.052002] __local_bh_enable_ip+0x1ee/0x230 [ 53.056495] ip_finish_output2+0x6da/0x2220 [ 53.060824] ? ip_frag_next+0x970/0x970 [ 53.064809] __ip_finish_output+0x382/0xa90 [ 53.069121] ? __ip_finish_output+0x382/0xa90 [ 53.073619] ip_finish_output+0x27/0x170 [ 53.077674] ip_output+0x1b3/0x5d0 [ 53.081208] ? ip_mc_output+0xd40/0xd40 [ 53.085272] ? __ip_finish_output+0xa90/0xa90 [ 53.089774] ip_local_out+0x7a/0x140 [ 53.093488] __ip_queue_xmit+0x6f6/0x1df0 [ 53.097629] ? __skb_checksum+0x810/0x810 [ 53.101766] ? skb_send_sock_locked+0x760/0x760 [ 53.106428] ? reqsk_fastopen_remove+0x500/0x500 [ 53.111178] ? dccp_insert_options+0x1e2/0xb20 [ 53.115820] ip_queue_xmit+0x45/0x70 [ 53.119529] dccp_transmit_skb+0xb76/0x1290 [ 53.123860] dccp_xmit_packet+0x1a0/0x580 [ 53.128095] dccp_write_xmit+0x128/0x180 [ 53.133392] dccp_sendmsg+0x676/0xd90 [ 53.137558] ? dccp_disconnect+0xaa0/0xaa0 [ 53.142105] ? __might_sleep+0x95/0x190 [ 53.149204] ? __kasan_check_write+0x14/0x20 [ 53.153611] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 53.158534] ? aa_sk_perm+0x12c/0x520 [ 53.162329] ? copy_msghdr_from_user+0x20d/0x3f0 [ 53.167106] inet_sendmsg+0xbd/0xe0 [ 53.170730] ? inet_send_prepare+0x3b0/0x3b0 [ 53.175131] sock_sendmsg+0xdf/0x110 [ 53.178841] ___sys_sendmsg+0x658/0x990 [ 53.182814] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.187591] ? __fget+0x2d1/0x440 [ 53.191051] ? __x64_sys_dup2+0x2f0/0x2f0 [ 53.195197] ? __local_bh_enable_ip+0x161/0x230 [ 53.199863] ? _raw_spin_unlock_bh+0x30/0x40 [ 53.204273] ? __fget_light+0x17f/0x1f0 [ 53.208241] ? fput_many+0x1b/0x130 [ 53.211868] ? __fdget+0xe/0x10 [ 53.215152] __sys_sendmsg+0xd9/0x180 [ 53.219088] ? __sys_sendmsg_sock+0xb0/0xb0 [ 53.223525] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.228889] __x64_sys_sendmsg+0x73/0xb0 [ 53.232951] do_syscall_64+0xd6/0x550 [ 53.236973] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.242211] RIP: 0033:0x452f89 [ 53.245516] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.264500] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 53.272214] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 53.279565] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.286826] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.294090] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.301353] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 53.308651] CPU: 0 PID: 4872 Comm: syz-executor2 Not tainted 5.3.0-rc2+ #1 [ 53.315671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.325016] Call Trace: [ 53.327642] [ 53.329845] dump_stack+0x115/0x167 [ 53.333467] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 53.338649] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 53.343391] ? dccp_parse_options+0x333/0x1000 [ 53.347968] dccp_deliver_input_to_ccids+0xcc/0x220 [ 53.352974] dccp_rcv_established+0x49/0x70 [ 53.357287] dccp_v4_do_rcv+0xf4/0x160 [ 53.361176] __sk_receive_skb+0x2a8/0x9b0 [ 53.365321] ? sk_free+0x30/0x30 [ 53.368687] dccp_v4_rcv+0xbea/0x1bbd [ 53.372491] ip_protocol_deliver_rcu+0x537/0x740 [ 53.377246] ip_local_deliver_finish+0x1ee/0x2f0 [ 53.382077] ip_local_deliver+0x30b/0x460 [ 53.386304] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 53.391270] ? lock_downgrade+0x900/0x900 [ 53.395410] ? ip_protocol_deliver_rcu+0x740/0x740 [ 53.400336] ip_rcv_finish+0xae/0x180 [ 53.404126] ip_rcv+0xcb/0x2f0 [ 53.407311] ? ip_local_deliver+0x460/0x460 [ 53.411658] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 53.417015] ? ip_local_deliver+0x460/0x460 [ 53.421329] __netif_receive_skb_one_core+0x132/0x190 [ 53.426513] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 53.431698] ? lock_acquire+0x194/0x3e0 [ 53.435660] ? process_backlog+0x183/0x680 [ 53.439888] __netif_receive_skb+0x1f/0x1b0 [ 53.444201] process_backlog+0x1cc/0x680 [ 53.448250] ? __do_softirq+0x248/0x94c [ 53.452225] net_rx_action+0x42d/0xd50 [ 53.456103] ? mark_lock+0xc3/0x11c0 [ 53.459811] ? napi_complete_done+0x3d0/0x3d0 [ 53.464320] __do_softirq+0x248/0x94c [ 53.468131] ? ip_finish_output2+0x6b1/0x2220 [ 53.472619] do_softirq_own_stack+0x2a/0x40 [ 53.476976] [ 53.479205] do_softirq.part.17+0x11a/0x150 [ 53.483564] __local_bh_enable_ip+0x1ee/0x230 [ 53.488054] ip_finish_output2+0x6da/0x2220 [ 53.492379] ? ip_frag_next+0x970/0x970 [ 53.496618] __ip_finish_output+0x382/0xa90 [ 53.500925] ? __ip_finish_output+0x382/0xa90 [ 53.505454] ip_finish_output+0x27/0x170 [ 53.509509] ip_output+0x1b3/0x5d0 [ 53.513037] ? ip_mc_output+0xd40/0xd40 [ 53.517001] ? __ip_finish_output+0xa90/0xa90 [ 53.521510] ip_local_out+0x7a/0x140 [ 53.525216] __ip_queue_xmit+0x6f6/0x1df0 [ 53.529350] ? __skb_checksum+0x810/0x810 [ 53.533495] ? skb_send_sock_locked+0x760/0x760 [ 53.538153] ? reqsk_fastopen_remove+0x500/0x500 [ 53.542935] ? dccp_insert_options+0x1e2/0xb20 [ 53.547516] ip_queue_xmit+0x45/0x70 [ 53.551394] dccp_transmit_skb+0xb76/0x1290 [ 53.555712] dccp_xmit_packet+0x1a0/0x580 [ 53.559850] dccp_write_xmit+0x128/0x180 [ 53.563901] dccp_sendmsg+0x676/0xd90 [ 53.567696] ? dccp_disconnect+0xaa0/0xaa0 [ 53.571920] ? __might_sleep+0x95/0x190 [ 53.575884] ? __kasan_check_write+0x14/0x20 [ 53.580282] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 53.585216] ? aa_sk_perm+0x12c/0x520 [ 53.589004] ? copy_msghdr_from_user+0x20d/0x3f0 [ 53.593758] inet_sendmsg+0xbd/0xe0 [ 53.597375] ? inet_send_prepare+0x3b0/0x3b0 [ 53.601768] sock_sendmsg+0xdf/0x110 [ 53.605472] ___sys_sendmsg+0x658/0x990 [ 53.609442] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.614206] ? __fget+0x2d1/0x440 [ 53.617665] ? __x64_sys_dup2+0x2f0/0x2f0 [ 53.621841] ? __kasan_check_write+0x14/0x20 [ 53.626239] ? fput_many+0x1b/0x130 [ 53.629862] ? __fget_light+0x17f/0x1f0 [ 53.633824] ? __fdget+0xe/0x10 [ 53.637115] ? release_sock+0x122/0x180 [ 53.641087] __sys_sendmsg+0xd9/0x180 [ 53.645005] ? __sys_sendmsg_sock+0xb0/0xb0 [ 53.649449] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.654806] __x64_sys_sendmsg+0x73/0xb0 [ 53.658896] do_syscall_64+0xd6/0x550 [ 53.662687] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.667866] RIP: 0033:0x452f89 [ 53.671047] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.689937] RSP: 002b:00007f1136d0fc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 53.697667] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 53.704924] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 53.712181] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 53.719437] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 53.726701] R13: 00000000ffffffff R14: 00007f1136d106d4 R15: 0000000000000002 [ 53.774453] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 53.787957] CPU: 0 PID: 4888 Comm: syz-executor4 Not tainted 5.3.0-rc2+ #1 [ 53.795181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.804551] Call Trace: [ 53.807230] [ 53.809392] dump_stack+0x115/0x167 [ 53.813039] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 53.818250] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 53.823011] ? dccp_parse_options+0x333/0x1000 [ 53.827614] dccp_deliver_input_to_ccids+0xcc/0x220 [ 53.833681] dccp_rcv_established+0x49/0x70 [ 53.838012] dccp_v4_do_rcv+0xf4/0x160 [ 53.841914] __sk_receive_skb+0x2a8/0x9b0 [ 53.846104] ? sk_free+0x30/0x30 [ 53.849640] dccp_v4_rcv+0xbea/0x1bbd [ 53.853475] ip_protocol_deliver_rcu+0x537/0x740 [ 53.858263] ip_local_deliver_finish+0x1ee/0x2f0 [ 53.863047] ip_local_deliver+0x30b/0x460 [ 53.867293] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 53.872223] ? lock_downgrade+0x900/0x900 [ 53.876516] ? ip_protocol_deliver_rcu+0x740/0x740 [ 53.876847] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 53.881464] ip_rcv_finish+0xae/0x180 [ 53.881475] ip_rcv+0xcb/0x2f0 [ 53.881485] ? ip_local_deliver+0x460/0x460 [ 53.881499] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 53.881514] ? ip_local_deliver+0x460/0x460 [ 53.881525] __netif_receive_skb_one_core+0x132/0x190 [ 53.881534] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 53.926490] ? lock_acquire+0x194/0x3e0 [ 53.930468] ? process_backlog+0x183/0x680 [ 53.934751] __netif_receive_skb+0x1f/0x1b0 [ 53.939073] process_backlog+0x1cc/0x680 [ 53.943131] ? __do_softirq+0x248/0x94c [ 53.947113] net_rx_action+0x42d/0xd50 [ 53.951059] ? mark_lock+0xc3/0x11c0 [ 53.954780] ? napi_complete_done+0x3d0/0x3d0 [ 53.959377] __do_softirq+0x248/0x94c [ 53.963187] ? ip_finish_output2+0x6b1/0x2220 [ 53.967714] do_softirq_own_stack+0x2a/0x40 [ 53.972027] [ 53.974262] do_softirq.part.17+0x11a/0x150 [ 53.978580] __local_bh_enable_ip+0x1ee/0x230 [ 53.983088] ip_finish_output2+0x6da/0x2220 [ 53.987417] ? ip_frag_next+0x970/0x970 [ 53.991406] __ip_finish_output+0x382/0xa90 [ 53.995848] ? __ip_finish_output+0x382/0xa90 [ 54.000345] ip_finish_output+0x27/0x170 [ 54.004405] ip_output+0x1b3/0x5d0 [ 54.007939] ? ip_mc_output+0xd40/0xd40 [ 54.011911] ? __ip_finish_output+0xa90/0xa90 [ 54.016412] ip_local_out+0x7a/0x140 [ 54.020123] __ip_queue_xmit+0x6f6/0x1df0 [ 54.024269] ? __skb_checksum+0x810/0x810 [ 54.028410] ? skb_send_sock_locked+0x760/0x760 [ 54.033070] ? reqsk_fastopen_remove+0x500/0x500 [ 54.037818] ? dccp_insert_options+0x1e2/0xb20 [ 54.042430] ip_queue_xmit+0x45/0x70 [ 54.046146] dccp_transmit_skb+0xb76/0x1290 [ 54.050477] dccp_xmit_packet+0x1a0/0x580 [ 54.054626] dccp_write_xmit+0x128/0x180 [ 54.058689] dccp_sendmsg+0x676/0xd90 [ 54.062494] ? dccp_disconnect+0xaa0/0xaa0 [ 54.066721] ? __might_sleep+0x95/0x190 [ 54.070689] ? __kasan_check_write+0x14/0x20 [ 54.075091] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 54.080015] ? aa_sk_perm+0x12c/0x520 [ 54.083810] ? copy_msghdr_from_user+0x20d/0x3f0 [ 54.088572] inet_sendmsg+0xbd/0xe0 [ 54.092195] ? inet_send_prepare+0x3b0/0x3b0 [ 54.096623] sock_sendmsg+0xdf/0x110 [ 54.100336] ___sys_sendmsg+0x658/0x990 [ 54.104403] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 54.109184] ? __fget+0x2d1/0x440 [ 54.112641] ? __x64_sys_dup2+0x2f0/0x2f0 [ 54.116785] ? lock_downgrade+0x900/0x900 [ 54.120925] ? __switch_to_asm+0x34/0x70 [ 54.125114] ? __switch_to_asm+0x34/0x70 [ 54.129184] ? __fget_light+0x17f/0x1f0 [ 54.133149] ? _raw_spin_unlock_irq+0x27/0x70 [ 54.137644] ? __fdget+0xe/0x10 [ 54.140934] __sys_sendmsg+0xd9/0x180 [ 54.144824] ? __sys_sendmsg_sock+0xb0/0xb0 [ 54.149175] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.154540] __x64_sys_sendmsg+0x73/0xb0 [ 54.158603] do_syscall_64+0xd6/0x550 [ 54.162406] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.167589] RIP: 0033:0x452f89 [ 54.170779] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.189685] RSP: 002b:00007f68bd687c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 54.197411] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 54.204676] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 54.211941] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 54.219204] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 54.226467] R13: 00000000ffffffff R14: 00007f68bd6886d4 R15: 0000000000000002 [ 54.233778] CPU: 1 PID: 4909 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 54.240802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.250295] Call Trace: [ 54.252895] [ 54.255058] dump_stack+0x115/0x167 [ 54.258714] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 54.264146] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 54.268910] ? dccp_parse_options+0x333/0x1000 [ 54.273521] dccp_deliver_input_to_ccids+0xcc/0x220 [ 54.274433] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 54.278663] dccp_rcv_established+0x49/0x70 [ 54.278674] dccp_v4_do_rcv+0xf4/0x160 [ 54.278689] __sk_receive_skb+0x2a8/0x9b0 [ 54.278706] ? sk_free+0x30/0x30 [ 54.278732] dccp_v4_rcv+0xbea/0x1bbd [ 54.278761] ip_protocol_deliver_rcu+0x537/0x740 [ 54.316241] ip_local_deliver_finish+0x1ee/0x2f0 [ 54.320997] ip_local_deliver+0x30b/0x460 [ 54.325143] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 54.330067] ? lock_downgrade+0x900/0x900 [ 54.334256] ? ip_protocol_deliver_rcu+0x740/0x740 [ 54.339317] ip_rcv_finish+0xae/0x180 [ 54.343117] ip_rcv+0xcb/0x2f0 [ 54.346308] ? ip_local_deliver+0x460/0x460 [ 54.350653] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 54.356015] ? ip_local_deliver+0x460/0x460 [ 54.360420] __netif_receive_skb_one_core+0x132/0x190 [ 54.365606] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 54.370794] ? lock_acquire+0x194/0x3e0 [ 54.374760] ? process_backlog+0x183/0x680 [ 54.378993] __netif_receive_skb+0x1f/0x1b0 [ 54.383402] process_backlog+0x1cc/0x680 [ 54.387459] ? __do_softirq+0x248/0x94c [ 54.391462] net_rx_action+0x42d/0xd50 [ 54.395349] ? mark_lock+0xc3/0x11c0 [ 54.399091] ? napi_complete_done+0x3d0/0x3d0 [ 54.403612] __do_softirq+0x248/0x94c [ 54.407419] ? ip_finish_output2+0x6b1/0x2220 [ 54.411919] do_softirq_own_stack+0x2a/0x40 [ 54.416231] [ 54.418462] do_softirq.part.17+0x11a/0x150 [ 54.422863] __local_bh_enable_ip+0x1ee/0x230 [ 54.427354] ip_finish_output2+0x6da/0x2220 [ 54.431682] ? ip_frag_next+0x970/0x970 [ 54.435668] __ip_finish_output+0x382/0xa90 [ 54.439981] ? __ip_finish_output+0x382/0xa90 [ 54.444482] ip_finish_output+0x27/0x170 [ 54.448628] ip_output+0x1b3/0x5d0 [ 54.452165] ? ip_mc_output+0xd40/0xd40 [ 54.456140] ? __ip_finish_output+0xa90/0xa90 [ 54.460643] ip_local_out+0x7a/0x140 [ 54.464371] __ip_queue_xmit+0x6f6/0x1df0 [ 54.468513] ? __skb_checksum+0x810/0x810 [ 54.472656] ? skb_send_sock_locked+0x760/0x760 [ 54.477330] ? reqsk_fastopen_remove+0x500/0x500 [ 54.482097] ? dccp_insert_options+0x1e2/0xb20 [ 54.486736] ip_queue_xmit+0x45/0x70 [ 54.490450] dccp_transmit_skb+0xb76/0x1290 [ 54.494783] dccp_xmit_packet+0x1a0/0x580 [ 54.498932] dccp_write_xmit+0x128/0x180 [ 54.502989] dccp_sendmsg+0x676/0xd90 [ 54.506859] ? dccp_disconnect+0xaa0/0xaa0 [ 54.511085] ? __might_sleep+0x95/0x190 [ 54.515056] ? __kasan_check_write+0x14/0x20 [ 54.519461] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 54.524388] ? aa_sk_perm+0x12c/0x520 [ 54.528185] ? copy_msghdr_from_user+0x20d/0x3f0 [ 54.532953] inet_sendmsg+0xbd/0xe0 [ 54.536575] ? inet_send_prepare+0x3b0/0x3b0 [ 54.540979] sock_sendmsg+0xdf/0x110 [ 54.544695] ___sys_sendmsg+0x658/0x990 [ 54.548673] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 54.553450] ? __fget+0x2d1/0x440 [ 54.556915] ? __x64_sys_dup2+0x2f0/0x2f0 [ 54.561061] ? lock_downgrade+0x900/0x900 [ 54.565205] ? __switch_to_asm+0x34/0x70 [ 54.569259] ? __switch_to_asm+0x34/0x70 [ 54.573321] ? __fget_light+0x17f/0x1f0 [ 54.577288] ? _raw_spin_unlock_irq+0x27/0x70 [ 54.581783] ? __fdget+0xe/0x10 [ 54.585068] __sys_sendmsg+0xd9/0x180 [ 54.588865] ? __sys_sendmsg_sock+0xb0/0xb0 [ 54.593219] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.598587] __x64_sys_sendmsg+0x73/0xb0 [ 54.602647] do_syscall_64+0xd6/0x550 [ 54.606450] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.611632] RIP: 0033:0x452f89 [ 54.614818] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.633717] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 54.641487] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 54.648786] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 54.656114] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 54.663381] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 54.671660] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 54.678962] CPU: 0 PID: 4915 Comm: syz-executor3 Not tainted 5.3.0-rc2+ #1 [ 54.681754] net_ratelimit: 25 callbacks suppressed [ 54.681758] dccp_close: ABORT with 24 bytes unread [ 54.686027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.686031] Call Trace: [ 54.686035] [ 54.686046] dump_stack+0x115/0x167 [ 54.686066] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 54.686081] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 54.715789] dccp_close: ABORT with 24 bytes unread [ 54.718984] ? dccp_parse_options+0x333/0x1000 [ 54.719008] dccp_deliver_input_to_ccids+0xcc/0x220 [ 54.719019] dccp_rcv_established+0x49/0x70 [ 54.719028] dccp_v4_do_rcv+0xf4/0x160 [ 54.729762] dccp_close: ABORT with 24 bytes unread [ 54.733523] __sk_receive_skb+0x2a8/0x9b0 [ 54.733541] ? sk_free+0x30/0x30 [ 54.733567] dccp_v4_rcv+0xbea/0x1bbd [ 54.748757] dccp_close: ABORT with 24 bytes unread [ 54.751755] ip_protocol_deliver_rcu+0x537/0x740 [ 54.751775] ip_local_deliver_finish+0x1ee/0x2f0 [ 54.751786] ip_local_deliver+0x30b/0x460 [ 54.757208] dccp_close: ABORT with 24 bytes unread [ 54.759312] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 54.759320] ? lock_downgrade+0x900/0x900 [ 54.759332] ? ip_protocol_deliver_rcu+0x740/0x740 [ 54.759352] ip_rcv_finish+0xae/0x180 [ 54.759362] ip_rcv+0xcb/0x2f0 [ 54.759372] ? ip_local_deliver+0x460/0x460 [ 54.812142] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 54.817547] ? ip_local_deliver+0x460/0x460 [ 54.821891] __netif_receive_skb_one_core+0x132/0x190 [ 54.827222] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 54.830962] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 54.832418] ? lock_acquire+0x194/0x3e0 [ 54.832427] ? process_backlog+0x183/0x680 [ 54.832442] __netif_receive_skb+0x1f/0x1b0 [ 54.832455] process_backlog+0x1cc/0x680 [ 54.832462] ? __do_softirq+0x248/0x94c [ 54.832484] net_rx_action+0x42d/0xd50 [ 54.870131] ? mark_lock+0xc3/0x11c0 [ 54.873850] ? napi_complete_done+0x3d0/0x3d0 [ 54.878369] __do_softirq+0x248/0x94c [ 54.882181] ? ip_finish_output2+0x6b1/0x2220 [ 54.886677] do_softirq_own_stack+0x2a/0x40 [ 54.890994] [ 54.893225] do_softirq.part.17+0x11a/0x150 [ 54.897542] __local_bh_enable_ip+0x1ee/0x230 [ 54.902035] ip_finish_output2+0x6da/0x2220 [ 54.906367] ? ip_frag_next+0x970/0x970 [ 54.910381] __ip_finish_output+0x382/0xa90 [ 54.914697] ? __ip_finish_output+0x382/0xa90 [ 54.919206] ip_finish_output+0x27/0x170 [ 54.923265] ip_output+0x1b3/0x5d0 [ 54.926801] ? ip_mc_output+0xd40/0xd40 [ 54.930778] ? __ip_finish_output+0xa90/0xa90 [ 54.935280] ip_local_out+0x7a/0x140 [ 54.938992] __ip_queue_xmit+0x6f6/0x1df0 [ 54.943131] ? __skb_checksum+0x810/0x810 [ 54.947281] ? skb_send_sock_locked+0x760/0x760 [ 54.951945] ? reqsk_fastopen_remove+0x500/0x500 [ 54.956697] ? dccp_insert_options+0x1e2/0xb20 [ 54.961292] ip_queue_xmit+0x45/0x70 [ 54.965021] dccp_transmit_skb+0xb76/0x1290 [ 54.969354] dccp_xmit_packet+0x1a0/0x580 [ 54.973505] dccp_write_xmit+0x128/0x180 [ 54.977564] dccp_sendmsg+0x676/0xd90 [ 54.981386] ? dccp_disconnect+0xaa0/0xaa0 [ 54.985616] ? __might_sleep+0x95/0x190 [ 54.989628] ? __kasan_check_write+0x14/0x20 [ 54.994039] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 54.998961] ? aa_sk_perm+0x12c/0x520 [ 55.002759] ? copy_msghdr_from_user+0x20d/0x3f0 [ 55.007598] inet_sendmsg+0xbd/0xe0 [ 55.011224] ? inet_send_prepare+0x3b0/0x3b0 [ 55.015627] sock_sendmsg+0xdf/0x110 [ 55.019337] ___sys_sendmsg+0x658/0x990 [ 55.023355] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 55.028376] ? __fget+0x2d1/0x440 [ 55.031835] ? __x64_sys_dup2+0x2f0/0x2f0 [ 55.035975] ? __local_bh_enable_ip+0x161/0x230 [ 55.040641] ? _raw_spin_unlock_bh+0x30/0x40 [ 55.045058] ? __fget_light+0x17f/0x1f0 [ 55.049028] ? fput_many+0x1b/0x130 [ 55.052740] ? __fdget+0xe/0x10 [ 55.056030] __sys_sendmsg+0xd9/0x180 [ 55.059863] ? __sys_sendmsg_sock+0xb0/0xb0 [ 55.064219] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.069589] __x64_sys_sendmsg+0x73/0xb0 [ 55.073653] do_syscall_64+0xd6/0x550 [ 55.077456] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.082642] RIP: 0033:0x452f89 [ 55.085875] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.104775] RSP: 002b:00007f4552b51c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.112669] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 55.120001] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.127268] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.134620] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.141884] R13: 00000000ffffffff R14: 00007f4552b526d4 R15: 0000000000000002 [ 55.149180] CPU: 1 PID: 4940 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 55.156208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.157419] dccp_close: ABORT with 24 bytes unread [ 55.165703] Call Trace: [ 55.165707] [ 55.165719] dump_stack+0x115/0x167 [ 55.165739] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 55.165754] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 55.165761] ? dccp_parse_options+0x333/0x1000 [ 55.165781] dccp_deliver_input_to_ccids+0xcc/0x220 [ 55.165792] dccp_rcv_established+0x49/0x70 [ 55.165800] dccp_v4_do_rcv+0xf4/0x160 [ 55.188139] dccp_close: ABORT with 24 bytes unread [ 55.189242] __sk_receive_skb+0x2a8/0x9b0 [ 55.189261] ? sk_free+0x30/0x30 [ 55.189290] dccp_v4_rcv+0xbea/0x1bbd [ 55.189322] ip_protocol_deliver_rcu+0x537/0x740 [ 55.196118] dccp_close: ABORT with 24 bytes unread [ 55.198927] ip_local_deliver_finish+0x1ee/0x2f0 [ 55.198941] ip_local_deliver+0x30b/0x460 [ 55.198951] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 55.198958] ? lock_downgrade+0x900/0x900 [ 55.198970] ? ip_protocol_deliver_rcu+0x740/0x740 [ 55.198991] ip_rcv_finish+0xae/0x180 [ 55.199000] ip_rcv+0xcb/0x2f0 [ 55.199009] ? ip_local_deliver+0x460/0x460 [ 55.217385] dccp_close: ABORT with 24 bytes unread [ 55.219866] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 55.219883] ? ip_local_deliver+0x460/0x460 [ 55.219894] __netif_receive_skb_one_core+0x132/0x190 [ 55.219904] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 55.219918] ? lock_acquire+0x194/0x3e0 [ 55.219923] ? process_backlog+0x183/0x680 [ 55.219938] __netif_receive_skb+0x1f/0x1b0 [ 55.219948] process_backlog+0x1cc/0x680 [ 55.280768] dccp_close: ABORT with 24 bytes unread [ 55.282770] ? __do_softirq+0x248/0x94c [ 55.282799] net_rx_action+0x42d/0xd50 [ 55.282813] ? mark_lock+0xc3/0x11c0 [ 55.282830] ? napi_complete_done+0x3d0/0x3d0 [ 55.282866] __do_softirq+0x248/0x94c [ 55.313782] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 55.315051] ? ip_finish_output2+0x6b1/0x2220 [ 55.315065] do_softirq_own_stack+0x2a/0x40 [ 55.315070] [ 55.315079] do_softirq.part.17+0x11a/0x150 [ 55.315087] __local_bh_enable_ip+0x1ee/0x230 [ 55.315096] ip_finish_output2+0x6da/0x2220 [ 55.315113] ? ip_frag_next+0x970/0x970 [ 55.376684] __ip_finish_output+0x382/0xa90 [ 55.381088] ? __ip_finish_output+0x382/0xa90 [ 55.385592] ip_finish_output+0x27/0x170 [ 55.389664] ip_output+0x1b3/0x5d0 [ 55.393201] ? ip_mc_output+0xd40/0xd40 [ 55.397173] ? __ip_finish_output+0xa90/0xa90 [ 55.401675] ip_local_out+0x7a/0x140 [ 55.405388] __ip_queue_xmit+0x6f6/0x1df0 [ 55.409584] ? __skb_checksum+0x810/0x810 [ 55.413764] ? skb_send_sock_locked+0x760/0x760 [ 55.418424] ? reqsk_fastopen_remove+0x500/0x500 [ 55.423212] ? dccp_insert_options+0x1e2/0xb20 [ 55.427827] ip_queue_xmit+0x45/0x70 [ 55.431549] dccp_transmit_skb+0xb76/0x1290 [ 55.435881] dccp_xmit_packet+0x1a0/0x580 [ 55.440033] dccp_write_xmit+0x128/0x180 [ 55.444098] dccp_sendmsg+0x676/0xd90 [ 55.447905] ? dccp_disconnect+0xaa0/0xaa0 [ 55.452136] ? __might_sleep+0x95/0x190 [ 55.456106] ? __kasan_check_write+0x14/0x20 [ 55.460561] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 55.465484] ? aa_sk_perm+0x12c/0x520 [ 55.469365] ? copy_msghdr_from_user+0x20d/0x3f0 [ 55.474127] inet_sendmsg+0xbd/0xe0 [ 55.477746] ? inet_send_prepare+0x3b0/0x3b0 [ 55.482147] sock_sendmsg+0xdf/0x110 [ 55.485876] ___sys_sendmsg+0x658/0x990 [ 55.489857] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 55.494637] ? __fget+0x2d1/0x440 [ 55.498097] ? __x64_sys_dup2+0x2f0/0x2f0 [ 55.502243] ? lock_downgrade+0x900/0x900 [ 55.506382] ? __switch_to_asm+0x34/0x70 [ 55.510459] ? __switch_to_asm+0x34/0x70 [ 55.514525] ? __fget_light+0x17f/0x1f0 [ 55.518492] ? _raw_spin_unlock_irq+0x27/0x70 [ 55.522988] ? __fdget+0xe/0x10 [ 55.526268] __sys_sendmsg+0xd9/0x180 [ 55.530065] ? __sys_sendmsg_sock+0xb0/0xb0 [ 55.534417] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.539797] __x64_sys_sendmsg+0x73/0xb0 [ 55.543860] do_syscall_64+0xd6/0x550 [ 55.547708] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.552890] RIP: 0033:0x452f89 [ 55.556079] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.574987] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 55.582687] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 55.589977] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 55.597239] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 55.604500] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 55.611763] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 55.619076] CPU: 0 PID: 4966 Comm: syz-executor2 Not tainted 5.3.0-rc2+ #1 [ 55.626099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.635463] Call Trace: [ 55.638064] [ 55.640352] dump_stack+0x115/0x167 [ 55.644005] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 55.649223] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 55.654003] ? dccp_parse_options+0x333/0x1000 [ 55.658624] dccp_deliver_input_to_ccids+0xcc/0x220 [ 55.663772] dccp_rcv_established+0x49/0x70 [ 55.668115] dccp_v4_do_rcv+0xf4/0x160 [ 55.672020] __sk_receive_skb+0x2a8/0x9b0 [ 55.676188] ? sk_free+0x30/0x30 [ 55.679716] dccp_v4_rcv+0xbea/0x1bbd [ 55.683678] ip_protocol_deliver_rcu+0x537/0x740 [ 55.688450] ip_local_deliver_finish+0x1ee/0x2f0 [ 55.693220] ip_local_deliver+0x30b/0x460 [ 55.694258] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 55.697372] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 55.697380] ? lock_downgrade+0x900/0x900 [ 55.697391] ? ip_protocol_deliver_rcu+0x740/0x740 [ 55.697413] ip_rcv_finish+0xae/0x180 [ 55.697422] ip_rcv+0xcb/0x2f0 [ 55.697431] ? ip_local_deliver+0x460/0x460 [ 55.737823] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 55.743190] ? ip_local_deliver+0x460/0x460 [ 55.747597] __netif_receive_skb_one_core+0x132/0x190 [ 55.752785] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 55.757980] ? lock_acquire+0x194/0x3e0 [ 55.761947] ? process_backlog+0x183/0x680 [ 55.766187] __netif_receive_skb+0x1f/0x1b0 [ 55.770508] process_backlog+0x1cc/0x680 [ 55.774563] ? __do_softirq+0x248/0x94c [ 55.778562] net_rx_action+0x42d/0xd50 [ 55.782536] ? mark_lock+0xc3/0x11c0 [ 55.786255] ? napi_complete_done+0x3d0/0x3d0 [ 55.790771] __do_softirq+0x248/0x94c [ 55.794593] ? ip_finish_output2+0x6b1/0x2220 [ 55.799088] do_softirq_own_stack+0x2a/0x40 [ 55.803398] [ 55.805633] do_softirq.part.17+0x11a/0x150 [ 55.809961] __local_bh_enable_ip+0x1ee/0x230 [ 55.814454] ip_finish_output2+0x6da/0x2220 [ 55.818783] ? ip_frag_next+0x970/0x970 [ 55.822814] __ip_finish_output+0x382/0xa90 [ 55.827136] ? __ip_finish_output+0x382/0xa90 [ 55.832486] ip_finish_output+0x27/0x170 [ 55.836634] ip_output+0x1b3/0x5d0 [ 55.840181] ? ip_mc_output+0xd40/0xd40 [ 55.844175] ? __ip_finish_output+0xa90/0xa90 [ 55.848674] ip_local_out+0x7a/0x140 [ 55.852388] __ip_queue_xmit+0x6f6/0x1df0 [ 55.856528] ? __skb_checksum+0x810/0x810 [ 55.860731] ? skb_send_sock_locked+0x760/0x760 [ 55.865614] ? reqsk_fastopen_remove+0x500/0x500 [ 55.870362] ? dccp_insert_options+0x1e2/0xb20 [ 55.874962] ip_queue_xmit+0x45/0x70 [ 55.878672] dccp_transmit_skb+0xb76/0x1290 [ 55.883021] dccp_xmit_packet+0x1a0/0x580 [ 55.887259] dccp_write_xmit+0x128/0x180 [ 55.891322] dccp_sendmsg+0x676/0xd90 [ 55.895131] ? dccp_disconnect+0xaa0/0xaa0 [ 55.899462] ? __might_sleep+0x95/0x190 [ 55.903434] ? __kasan_check_write+0x14/0x20 [ 55.907840] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 55.912810] ? aa_sk_perm+0x12c/0x520 [ 55.916605] ? copy_msghdr_from_user+0x20d/0x3f0 [ 55.921370] inet_sendmsg+0xbd/0xe0 [ 55.924997] ? inet_send_prepare+0x3b0/0x3b0 [ 55.929400] sock_sendmsg+0xdf/0x110 [ 55.933110] ___sys_sendmsg+0x658/0x990 [ 55.937087] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 55.941862] ? __fget+0x2d1/0x440 [ 55.945322] ? __x64_sys_dup2+0x2f0/0x2f0 [ 55.949468] ? lock_downgrade+0x900/0x900 [ 55.953610] ? __switch_to_asm+0x34/0x70 [ 55.957666] ? __switch_to_asm+0x34/0x70 [ 55.961729] ? __fget_light+0x17f/0x1f0 [ 55.965696] ? _raw_spin_unlock_irq+0x27/0x70 [ 55.970188] ? __fdget+0xe/0x10 [ 55.973472] __sys_sendmsg+0xd9/0x180 [ 55.977271] ? __sys_sendmsg_sock+0xb0/0xb0 [ 55.981627] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.986992] __x64_sys_sendmsg+0x73/0xb0 [ 55.991049] do_syscall_64+0xd6/0x550 [ 55.994848] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.000030] RIP: 0033:0x452f89 [ 56.003225] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.022176] RSP: 002b:00007f1136ceec58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.029877] RAX: ffffffffffffffda RBX: 000000000071c010 RCX: 0000000000452f89 [ 56.037138] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.044443] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.051794] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.059148] R13: 00000000ffffffff R14: 00007f1136cef6d4 R15: 0000000000000004 [ 56.066448] CPU: 1 PID: 4980 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 56.073474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.082836] Call Trace: [ 56.085521] [ 56.087678] dump_stack+0x115/0x167 [ 56.091320] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 56.096531] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 56.101301] ? dccp_parse_options+0x333/0x1000 [ 56.105907] dccp_deliver_input_to_ccids+0xcc/0x220 [ 56.111077] dccp_rcv_established+0x49/0x70 [ 56.115407] dccp_v4_do_rcv+0xf4/0x160 [ 56.118960] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 56.119299] __sk_receive_skb+0x2a8/0x9b0 [ 56.119317] ? sk_free+0x30/0x30 [ 56.140160] dccp_v4_rcv+0xbea/0x1bbd [ 56.143985] ip_protocol_deliver_rcu+0x537/0x740 [ 56.148746] ip_local_deliver_finish+0x1ee/0x2f0 [ 56.153504] ip_local_deliver+0x30b/0x460 [ 56.157748] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 56.162673] ? lock_downgrade+0x900/0x900 [ 56.166823] ? ip_protocol_deliver_rcu+0x740/0x740 [ 56.171765] ip_rcv_finish+0xae/0x180 [ 56.175651] ip_rcv+0xcb/0x2f0 [ 56.178844] ? ip_local_deliver+0x460/0x460 [ 56.183166] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 56.188617] ? ip_local_deliver+0x460/0x460 [ 56.192932] __netif_receive_skb_one_core+0x132/0x190 [ 56.198205] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 56.203407] ? lock_acquire+0x194/0x3e0 [ 56.207394] ? process_backlog+0x183/0x680 [ 56.211627] __netif_receive_skb+0x1f/0x1b0 [ 56.215957] process_backlog+0x1cc/0x680 [ 56.220027] ? __do_softirq+0x248/0x94c [ 56.224015] net_rx_action+0x42d/0xd50 [ 56.227901] ? mark_lock+0xc3/0x11c0 [ 56.231616] ? napi_complete_done+0x3d0/0x3d0 [ 56.236146] __do_softirq+0x248/0x94c [ 56.239952] ? ip_finish_output2+0x6b1/0x2220 [ 56.244449] do_softirq_own_stack+0x2a/0x40 [ 56.248769] [ 56.251003] do_softirq.part.17+0x11a/0x150 [ 56.255321] __local_bh_enable_ip+0x1ee/0x230 [ 56.259819] ip_finish_output2+0x6da/0x2220 [ 56.264150] ? ip_frag_next+0x970/0x970 [ 56.268137] __ip_finish_output+0x382/0xa90 [ 56.272453] ? __ip_finish_output+0x382/0xa90 [ 56.276950] ip_finish_output+0x27/0x170 [ 56.281007] ip_output+0x1b3/0x5d0 [ 56.284594] ? ip_mc_output+0xd40/0xd40 [ 56.288566] ? __ip_finish_output+0xa90/0xa90 [ 56.293154] ip_local_out+0x7a/0x140 [ 56.296867] __ip_queue_xmit+0x6f6/0x1df0 [ 56.301005] ? __skb_checksum+0x810/0x810 [ 56.305192] ? skb_send_sock_locked+0x760/0x760 [ 56.309856] ? reqsk_fastopen_remove+0x500/0x500 [ 56.314604] ? dccp_insert_options+0x1e2/0xb20 [ 56.319193] ip_queue_xmit+0x45/0x70 [ 56.322913] dccp_transmit_skb+0xb76/0x1290 [ 56.327244] dccp_xmit_packet+0x1a0/0x580 [ 56.331391] dccp_write_xmit+0x128/0x180 [ 56.335452] dccp_sendmsg+0x676/0xd90 [ 56.339256] ? dccp_disconnect+0xaa0/0xaa0 [ 56.343482] ? __might_sleep+0x95/0x190 [ 56.347449] ? __kasan_check_write+0x14/0x20 [ 56.351858] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 56.356783] ? aa_sk_perm+0x12c/0x520 [ 56.360752] ? copy_msghdr_from_user+0x20d/0x3f0 [ 56.365520] inet_sendmsg+0xbd/0xe0 [ 56.369234] ? inet_send_prepare+0x3b0/0x3b0 [ 56.373635] sock_sendmsg+0xdf/0x110 [ 56.377345] ___sys_sendmsg+0x658/0x990 [ 56.381319] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 56.386101] ? __fget+0x2d1/0x440 [ 56.389561] ? __x64_sys_dup2+0x2f0/0x2f0 [ 56.393788] ? lock_downgrade+0x900/0x900 [ 56.397928] ? __switch_to_asm+0x34/0x70 [ 56.401981] ? __switch_to_asm+0x34/0x70 [ 56.406132] ? __fget_light+0x17f/0x1f0 [ 56.410100] ? _raw_spin_unlock_irq+0x27/0x70 [ 56.414592] ? __fdget+0xe/0x10 [ 56.417908] __sys_sendmsg+0xd9/0x180 [ 56.421783] ? __sys_sendmsg_sock+0xb0/0xb0 [ 56.426160] ? __schedule+0x73b/0x14d0 [ 56.430073] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.435439] __x64_sys_sendmsg+0x73/0xb0 [ 56.439496] do_syscall_64+0xd6/0x550 [ 56.443294] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.448476] RIP: 0033:0x452f89 [ 56.451662] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.470558] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.478259] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 56.485522] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.492783] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.500049] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.507313] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 56.514610] CPU: 0 PID: 4991 Comm: syz-executor Not tainted 5.3.0-rc2+ #1 [ 56.521634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.531127] Call Trace: [ 56.533715] [ 56.535872] dump_stack+0x115/0x167 [ 56.539525] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 56.544730] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 56.549503] ? dccp_parse_options+0x333/0x1000 [ 56.554115] dccp_deliver_input_to_ccids+0xcc/0x220 [ 56.559145] dccp_rcv_established+0x49/0x70 [ 56.563591] dccp_v4_do_rcv+0xf4/0x160 [ 56.563945] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 56.567481] __sk_receive_skb+0x2a8/0x9b0 [ 56.567498] ? sk_free+0x30/0x30 [ 56.567525] dccp_v4_rcv+0xbea/0x1bbd [ 56.567554] ip_protocol_deliver_rcu+0x537/0x740 [ 56.596754] ip_local_deliver_finish+0x1ee/0x2f0 [ 56.601558] ip_local_deliver+0x30b/0x460 [ 56.605707] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 56.610719] ? lock_downgrade+0x900/0x900 [ 56.614871] ? ip_protocol_deliver_rcu+0x740/0x740 [ 56.619806] ip_rcv_finish+0xae/0x180 [ 56.623630] ip_rcv+0xcb/0x2f0 [ 56.626818] ? ip_local_deliver+0x460/0x460 [ 56.631139] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 56.636505] ? ip_local_deliver+0x460/0x460 [ 56.640844] __netif_receive_skb_one_core+0x132/0x190 [ 56.646031] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 56.651234] ? lock_acquire+0x194/0x3e0 [ 56.655201] ? process_backlog+0x183/0x680 [ 56.659438] __netif_receive_skb+0x1f/0x1b0 [ 56.665317] process_backlog+0x1cc/0x680 [ 56.669380] ? __do_softirq+0x248/0x94c [ 56.673376] net_rx_action+0x42d/0xd50 [ 56.677260] ? mark_lock+0xc3/0x11c0 [ 56.680975] ? napi_complete_done+0x3d0/0x3d0 [ 56.685546] __do_softirq+0x248/0x94c [ 56.689358] ? ip_finish_output2+0x6b1/0x2220 [ 56.693850] do_softirq_own_stack+0x2a/0x40 [ 56.698174] [ 56.700408] do_softirq.part.17+0x11a/0x150 [ 56.704726] __local_bh_enable_ip+0x1ee/0x230 [ 56.709224] ip_finish_output2+0x6da/0x2220 [ 56.713554] ? ip_frag_next+0x970/0x970 [ 56.717542] __ip_finish_output+0x382/0xa90 [ 56.721854] ? __ip_finish_output+0x382/0xa90 [ 56.726349] ip_finish_output+0x27/0x170 [ 56.730408] ip_output+0x1b3/0x5d0 [ 56.734012] ? ip_mc_output+0xd40/0xd40 [ 56.737984] ? __ip_finish_output+0xa90/0xa90 [ 56.742487] ip_local_out+0x7a/0x140 [ 56.746260] __ip_queue_xmit+0x6f6/0x1df0 [ 56.750410] ? __skb_checksum+0x810/0x810 [ 56.754555] ? skb_send_sock_locked+0x760/0x760 [ 56.759232] ? reqsk_fastopen_remove+0x500/0x500 [ 56.763979] ? dccp_insert_options+0x1e2/0xb20 [ 56.768564] ip_queue_xmit+0x45/0x70 [ 56.772374] dccp_transmit_skb+0xb76/0x1290 [ 56.776702] dccp_xmit_packet+0x1a0/0x580 [ 56.780852] dccp_write_xmit+0x128/0x180 [ 56.784914] dccp_sendmsg+0x676/0xd90 [ 56.788722] ? dccp_disconnect+0xaa0/0xaa0 [ 56.792953] ? __might_sleep+0x95/0x190 [ 56.796921] ? __kasan_check_write+0x14/0x20 [ 56.801325] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 56.806252] ? aa_sk_perm+0x12c/0x520 [ 56.810048] ? copy_msghdr_from_user+0x20d/0x3f0 [ 56.814812] inet_sendmsg+0xbd/0xe0 [ 56.818434] ? inet_send_prepare+0x3b0/0x3b0 [ 56.822879] sock_sendmsg+0xdf/0x110 [ 56.826602] ___sys_sendmsg+0x658/0x990 [ 56.830577] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 56.835525] ? __fget+0x2d1/0x440 [ 56.838990] ? __x64_sys_dup2+0x2f0/0x2f0 [ 56.843137] ? lock_downgrade+0x900/0x900 [ 56.847278] ? __switch_to_asm+0x34/0x70 [ 56.851333] ? __switch_to_asm+0x34/0x70 [ 56.855396] ? __fget_light+0x17f/0x1f0 [ 56.859361] ? _raw_spin_unlock_irq+0x27/0x70 [ 56.863868] ? __fdget+0xe/0x10 [ 56.867200] __sys_sendmsg+0xd9/0x180 [ 56.871000] ? __sys_sendmsg_sock+0xb0/0xb0 [ 56.875349] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.880823] __x64_sys_sendmsg+0x73/0xb0 [ 56.884884] do_syscall_64+0xd6/0x550 [ 56.888685] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.893872] RIP: 0033:0x452f89 [ 56.897061] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.916049] RSP: 002b:00007f5f643d3c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 56.923838] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 56.931103] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 56.938403] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 56.945665] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 56.952925] R13: 00000000ffffffff R14: 00007f5f643d46d4 R15: 0000000000000002 [ 56.960224] CPU: 1 PID: 4998 Comm: syz-executor3 Not tainted 5.3.0-rc2+ #1 [ 56.967366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.976738] Call Trace: [ 56.979336] [ 56.981489] dump_stack+0x115/0x167 2019/08/01 06:28:25 executed programs: 64 [ 56.985135] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 56.990339] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 56.995115] ? dccp_parse_options+0x333/0x1000 [ 56.999731] dccp_deliver_input_to_ccids+0xcc/0x220 [ 57.004761] dccp_rcv_established+0x49/0x70 [ 57.009095] dccp_v4_do_rcv+0xf4/0x160 [ 57.012996] __sk_receive_skb+0x2a8/0x9b0 [ 57.017163] ? sk_free+0x30/0x30 [ 57.020682] dccp_v4_rcv+0xbea/0x1bbd [ 57.024519] ip_protocol_deliver_rcu+0x537/0x740 [ 57.029290] ip_local_deliver_finish+0x1ee/0x2f0 [ 57.034061] ip_local_deliver+0x30b/0x460 [ 57.038219] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 57.041165] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.043311] ? lock_downgrade+0x900/0x900 [ 57.043324] ? ip_protocol_deliver_rcu+0x740/0x740 [ 57.043345] ip_rcv_finish+0xae/0x180 [ 57.043356] ip_rcv+0xcb/0x2f0 [ 57.043366] ? ip_local_deliver+0x460/0x460 [ 57.043380] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 57.043395] ? ip_local_deliver+0x460/0x460 [ 57.086706] __netif_receive_skb_one_core+0x132/0x190 [ 57.091938] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 57.097126] ? lock_acquire+0x194/0x3e0 [ 57.101101] ? process_backlog+0x183/0x680 [ 57.105338] __netif_receive_skb+0x1f/0x1b0 [ 57.109750] process_backlog+0x1cc/0x680 [ 57.113805] ? __do_softirq+0x248/0x94c [ 57.117793] net_rx_action+0x42d/0xd50 [ 57.121683] ? mark_lock+0xc3/0x11c0 [ 57.125399] ? napi_complete_done+0x3d0/0x3d0 [ 57.129922] __do_softirq+0x248/0x94c [ 57.133732] ? ip_finish_output2+0x6b1/0x2220 [ 57.138293] do_softirq_own_stack+0x2a/0x40 [ 57.142605] [ 57.144836] do_softirq.part.17+0x11a/0x150 [ 57.149151] __local_bh_enable_ip+0x1ee/0x230 [ 57.153640] ip_finish_output2+0x6da/0x2220 [ 57.158032] ? ip_frag_next+0x970/0x970 [ 57.162016] __ip_finish_output+0x382/0xa90 [ 57.166332] ? __ip_finish_output+0x382/0xa90 [ 57.170834] ip_finish_output+0x27/0x170 [ 57.174979] ip_output+0x1b3/0x5d0 [ 57.178518] ? ip_mc_output+0xd40/0xd40 [ 57.182579] ? __ip_finish_output+0xa90/0xa90 [ 57.187083] ip_local_out+0x7a/0x140 [ 57.190798] __ip_queue_xmit+0x6f6/0x1df0 [ 57.195018] ? __skb_checksum+0x810/0x810 [ 57.199159] ? skb_send_sock_locked+0x760/0x760 [ 57.203824] ? reqsk_fastopen_remove+0x500/0x500 [ 57.208660] ? dccp_insert_options+0x1e2/0xb20 [ 57.213249] ip_queue_xmit+0x45/0x70 [ 57.217048] dccp_transmit_skb+0xb76/0x1290 [ 57.221376] dccp_xmit_packet+0x1a0/0x580 [ 57.225526] dccp_write_xmit+0x128/0x180 [ 57.229587] dccp_sendmsg+0x676/0xd90 [ 57.233415] ? dccp_disconnect+0xaa0/0xaa0 [ 57.237640] ? __might_sleep+0x95/0x190 [ 57.241622] ? __kasan_check_write+0x14/0x20 [ 57.246029] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 57.250954] ? aa_sk_perm+0x12c/0x520 [ 57.254834] ? copy_msghdr_from_user+0x20d/0x3f0 [ 57.259599] inet_sendmsg+0xbd/0xe0 [ 57.263222] ? inet_send_prepare+0x3b0/0x3b0 [ 57.267621] sock_sendmsg+0xdf/0x110 [ 57.271334] ___sys_sendmsg+0x658/0x990 [ 57.275311] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 57.280088] ? __fget+0x2d1/0x440 [ 57.283544] ? __x64_sys_dup2+0x2f0/0x2f0 [ 57.287777] ? __local_bh_enable_ip+0x161/0x230 [ 57.292444] ? _raw_spin_unlock_bh+0x30/0x40 [ 57.296853] ? __fget_light+0x17f/0x1f0 [ 57.300821] ? fput_many+0x1b/0x130 [ 57.304444] ? __fdget+0xe/0x10 [ 57.307726] __sys_sendmsg+0xd9/0x180 [ 57.311519] ? __sys_sendmsg_sock+0xb0/0xb0 [ 57.315908] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.321274] __x64_sys_sendmsg+0x73/0xb0 [ 57.325335] do_syscall_64+0xd6/0x550 [ 57.329136] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.334318] RIP: 0033:0x452f89 [ 57.337508] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.356407] RSP: 002b:00007f4552b51c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.364109] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 57.371374] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.378636] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.385905] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.393171] R13: 00000000ffffffff R14: 00007f4552b526d4 R15: 0000000000000002 [ 57.400553] CPU: 0 PID: 5014 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 57.407574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.416939] Call Trace: [ 57.419537] [ 57.421691] dump_stack+0x115/0x167 [ 57.425438] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 57.430648] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 57.435422] ? dccp_parse_options+0x333/0x1000 [ 57.440031] dccp_deliver_input_to_ccids+0xcc/0x220 [ 57.442636] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.445064] dccp_rcv_established+0x49/0x70 [ 57.445077] dccp_v4_do_rcv+0xf4/0x160 [ 57.466555] __sk_receive_skb+0x2a8/0x9b0 [ 57.470706] ? sk_free+0x30/0x30 [ 57.474083] dccp_v4_rcv+0xbea/0x1bbd [ 57.477899] ip_protocol_deliver_rcu+0x537/0x740 [ 57.482659] ip_local_deliver_finish+0x1ee/0x2f0 [ 57.487564] ip_local_deliver+0x30b/0x460 [ 57.491796] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 57.497009] ? lock_downgrade+0x900/0x900 [ 57.501160] ? ip_protocol_deliver_rcu+0x740/0x740 [ 57.506115] ip_rcv_finish+0xae/0x180 [ 57.509944] ip_rcv+0xcb/0x2f0 [ 57.513132] ? ip_local_deliver+0x460/0x460 [ 57.517457] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 57.522843] ? ip_local_deliver+0x460/0x460 [ 57.527165] __netif_receive_skb_one_core+0x132/0x190 [ 57.532369] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 57.537561] ? lock_acquire+0x194/0x3e0 [ 57.541530] ? process_backlog+0x183/0x680 [ 57.545913] __netif_receive_skb+0x1f/0x1b0 [ 57.550235] process_backlog+0x1cc/0x680 [ 57.554288] ? __do_softirq+0x248/0x94c [ 57.558275] net_rx_action+0x42d/0xd50 [ 57.562167] ? mark_lock+0xc3/0x11c0 [ 57.565900] ? napi_complete_done+0x3d0/0x3d0 [ 57.570420] __do_softirq+0x248/0x94c [ 57.574490] ? ip_finish_output2+0x6b1/0x2220 [ 57.578986] do_softirq_own_stack+0x2a/0x40 [ 57.583300] [ 57.585531] do_softirq.part.17+0x11a/0x150 [ 57.589849] __local_bh_enable_ip+0x1ee/0x230 [ 57.594343] ip_finish_output2+0x6da/0x2220 [ 57.598673] ? ip_frag_next+0x970/0x970 [ 57.602667] __ip_finish_output+0x382/0xa90 [ 57.606984] ? __ip_finish_output+0x382/0xa90 [ 57.611483] ip_finish_output+0x27/0x170 [ 57.615543] ip_output+0x1b3/0x5d0 [ 57.619082] ? ip_mc_output+0xd40/0xd40 [ 57.623054] ? __ip_finish_output+0xa90/0xa90 [ 57.627559] ip_local_out+0x7a/0x140 [ 57.631275] __ip_queue_xmit+0x6f6/0x1df0 [ 57.635416] ? __skb_checksum+0x810/0x810 [ 57.639646] ? skb_send_sock_locked+0x760/0x760 [ 57.644506] ? reqsk_fastopen_remove+0x500/0x500 [ 57.649260] ? dccp_insert_options+0x1e2/0xb20 [ 57.653852] ip_queue_xmit+0x45/0x70 [ 57.657564] dccp_transmit_skb+0xb76/0x1290 [ 57.661905] dccp_xmit_packet+0x1a0/0x580 [ 57.666149] dccp_write_xmit+0x128/0x180 [ 57.670211] dccp_sendmsg+0x676/0xd90 [ 57.674086] ? dccp_disconnect+0xaa0/0xaa0 [ 57.678314] ? __might_sleep+0x95/0x190 [ 57.683589] ? __kasan_check_write+0x14/0x20 [ 57.688006] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 57.692930] ? aa_sk_perm+0x12c/0x520 [ 57.696815] ? copy_msghdr_from_user+0x20d/0x3f0 [ 57.701579] inet_sendmsg+0xbd/0xe0 [ 57.705204] ? inet_send_prepare+0x3b0/0x3b0 [ 57.709677] sock_sendmsg+0xdf/0x110 [ 57.713477] ___sys_sendmsg+0x658/0x990 [ 57.717454] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 57.722233] ? __fget+0x2d1/0x440 [ 57.725703] ? __x64_sys_dup2+0x2f0/0x2f0 [ 57.729871] ? __local_bh_enable_ip+0x161/0x230 [ 57.734538] ? _raw_spin_unlock_bh+0x30/0x40 [ 57.738948] ? __fget_light+0x17f/0x1f0 [ 57.742954] ? fput_many+0x1b/0x130 [ 57.746577] ? __fdget+0xe/0x10 [ 57.749861] __sys_sendmsg+0xd9/0x180 [ 57.753656] ? __sys_sendmsg_sock+0xb0/0xb0 [ 57.758010] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.763391] __x64_sys_sendmsg+0x73/0xb0 [ 57.767453] do_syscall_64+0xd6/0x550 [ 57.771257] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.776438] RIP: 0033:0x452f89 [ 57.779625] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.798610] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 57.806354] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 57.813619] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 57.820883] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 57.828319] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 57.836618] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 57.843920] CPU: 1 PID: 5020 Comm: syz-executor1 Not tainted 5.3.0-rc2+ #1 [ 57.851032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.860400] Call Trace: [ 57.863120] [ 57.865283] dump_stack+0x115/0x167 [ 57.868936] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 57.874151] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 57.878926] ? dccp_parse_options+0x333/0x1000 [ 57.883673] dccp_deliver_input_to_ccids+0xcc/0x220 [ 57.888714] dccp_rcv_established+0x49/0x70 [ 57.893047] dccp_v4_do_rcv+0xf4/0x160 [ 57.896951] __sk_receive_skb+0x2a8/0x9b0 [ 57.901142] ? sk_free+0x30/0x30 [ 57.904555] dccp_v4_rcv+0xbea/0x1bbd [ 57.908392] ip_protocol_deliver_rcu+0x537/0x740 [ 57.913172] ip_local_deliver_finish+0x1ee/0x2f0 [ 57.918199] ip_local_deliver+0x30b/0x460 [ 57.922376] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 57.927315] ? lock_downgrade+0x900/0x900 [ 57.931485] ? ip_protocol_deliver_rcu+0x740/0x740 [ 57.936442] ip_rcv_finish+0xae/0x180 [ 57.937140] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 57.940258] ip_rcv+0xcb/0x2f0 [ 57.940268] ? ip_local_deliver+0x460/0x460 [ 57.940280] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 57.940296] ? ip_local_deliver+0x460/0x460 [ 57.940308] __netif_receive_skb_one_core+0x132/0x190 [ 57.940317] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 57.940331] ? lock_acquire+0x194/0x3e0 [ 57.940337] ? process_backlog+0x183/0x680 [ 57.940349] __netif_receive_skb+0x1f/0x1b0 [ 57.993724] process_backlog+0x1cc/0x680 [ 57.997876] ? __do_softirq+0x248/0x94c [ 58.001913] net_rx_action+0x42d/0xd50 [ 58.005803] ? mark_lock+0xc3/0x11c0 [ 58.009538] ? napi_complete_done+0x3d0/0x3d0 [ 58.014052] __do_softirq+0x248/0x94c [ 58.017859] ? ip_finish_output2+0x6b1/0x2220 [ 58.022349] do_softirq_own_stack+0x2a/0x40 [ 58.026837] [ 58.029072] do_softirq.part.17+0x11a/0x150 [ 58.033390] __local_bh_enable_ip+0x1ee/0x230 [ 58.037880] ip_finish_output2+0x6da/0x2220 [ 58.042209] ? ip_frag_next+0x970/0x970 [ 58.046196] __ip_finish_output+0x382/0xa90 [ 58.050510] ? __ip_finish_output+0x382/0xa90 [ 58.055078] ip_finish_output+0x27/0x170 [ 58.059138] ip_output+0x1b3/0x5d0 [ 58.062673] ? ip_mc_output+0xd40/0xd40 [ 58.066684] ? __ip_finish_output+0xa90/0xa90 [ 58.071187] ip_local_out+0x7a/0x140 [ 58.074902] __ip_queue_xmit+0x6f6/0x1df0 [ 58.079044] ? __skb_checksum+0x810/0x810 [ 58.083183] ? skb_send_sock_locked+0x760/0x760 [ 58.087897] ? reqsk_fastopen_remove+0x500/0x500 [ 58.092655] ? dccp_insert_options+0x1e2/0xb20 [ 58.097244] ip_queue_xmit+0x45/0x70 [ 58.100952] dccp_transmit_skb+0xb76/0x1290 [ 58.105281] dccp_xmit_packet+0x1a0/0x580 [ 58.109431] dccp_write_xmit+0x128/0x180 [ 58.113490] dccp_sendmsg+0x676/0xd90 [ 58.117297] ? dccp_disconnect+0xaa0/0xaa0 [ 58.121617] ? __might_sleep+0x95/0x190 [ 58.125583] ? __kasan_check_write+0x14/0x20 [ 58.130023] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 58.134943] ? aa_sk_perm+0x12c/0x520 [ 58.138742] ? copy_msghdr_from_user+0x20d/0x3f0 [ 58.143596] inet_sendmsg+0xbd/0xe0 [ 58.147216] ? inet_send_prepare+0x3b0/0x3b0 [ 58.151616] sock_sendmsg+0xdf/0x110 [ 58.155324] ___sys_sendmsg+0x658/0x990 [ 58.159301] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 58.164078] ? __fget+0x2d1/0x440 [ 58.167533] ? __x64_sys_dup2+0x2f0/0x2f0 [ 58.171674] ? __local_bh_enable_ip+0x161/0x230 [ 58.176333] ? _raw_spin_unlock_bh+0x30/0x40 [ 58.180738] ? __fget_light+0x17f/0x1f0 [ 58.184697] ? fput_many+0x1b/0x130 [ 58.188316] ? __fdget+0xe/0x10 [ 58.191623] __sys_sendmsg+0xd9/0x180 [ 58.195414] ? __sys_sendmsg_sock+0xb0/0xb0 [ 58.199760] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.205144] __x64_sys_sendmsg+0x73/0xb0 [ 58.209198] do_syscall_64+0xd6/0x550 [ 58.212991] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.218166] RIP: 0033:0x452f89 [ 58.221349] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.240237] RSP: 002b:00007f152c256c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 58.247929] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 58.255186] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 58.262441] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 58.269698] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 58.276954] R13: 00000000ffffffff R14: 00007f152c2576d4 R15: 0000000000000002 [ 58.284242] CPU: 0 PID: 5038 Comm: syz-executor3 Not tainted 5.3.0-rc2+ #1 [ 58.291257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.300618] Call Trace: [ 58.303207] [ 58.305355] dump_stack+0x115/0x167 [ 58.309006] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 58.314206] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 58.318975] ? dccp_parse_options+0x333/0x1000 [ 58.323584] dccp_deliver_input_to_ccids+0xcc/0x220 [ 58.328608] dccp_rcv_established+0x49/0x70 [ 58.332935] dccp_v4_do_rcv+0xf4/0x160 [ 58.337008] __sk_receive_skb+0x2a8/0x9b0 [ 58.341167] ? sk_free+0x30/0x30 [ 58.344661] dccp_v4_rcv+0xbea/0x1bbd [ 58.348484] ip_protocol_deliver_rcu+0x537/0x740 [ 58.353255] ip_local_deliver_finish+0x1ee/0x2f0 [ 58.358014] ip_local_deliver+0x30b/0x460 [ 58.362161] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 58.367087] ? lock_downgrade+0x900/0x900 [ 58.371236] ? ip_protocol_deliver_rcu+0x740/0x740 [ 58.376183] ip_rcv_finish+0xae/0x180 [ 58.379993] ip_rcv+0xcb/0x2f0 [ 58.383188] ? ip_local_deliver+0x460/0x460 [ 58.387516] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 58.392893] ? ip_local_deliver+0x460/0x460 [ 58.397222] __netif_receive_skb_one_core+0x132/0x190 [ 58.402418] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 58.407622] ? lock_acquire+0x194/0x3e0 [ 58.411610] ? process_backlog+0x183/0x680 [ 58.415864] __netif_receive_skb+0x1f/0x1b0 [ 58.420198] process_backlog+0x1cc/0x680 [ 58.424262] ? __do_softirq+0x248/0x94c [ 58.428256] net_rx_action+0x42d/0xd50 [ 58.429786] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 58.432150] ? mark_lock+0xc3/0x11c0 [ 58.432169] ? napi_complete_done+0x3d0/0x3d0 [ 58.432209] __do_softirq+0x248/0x94c [ 58.432227] ? ip_finish_output2+0x6b1/0x2220 [ 58.461903] do_softirq_own_stack+0x2a/0x40 [ 58.466210] [ 58.468436] do_softirq.part.17+0x11a/0x150 [ 58.472746] __local_bh_enable_ip+0x1ee/0x230 [ 58.477234] ip_finish_output2+0x6da/0x2220 [ 58.481556] ? ip_frag_next+0x970/0x970 [ 58.485534] __ip_finish_output+0x382/0xa90 [ 58.489841] ? __ip_finish_output+0x382/0xa90 [ 58.494339] ip_finish_output+0x27/0x170 [ 58.498391] ip_output+0x1b3/0x5d0 [ 58.501918] ? ip_mc_output+0xd40/0xd40 [ 58.505883] ? __ip_finish_output+0xa90/0xa90 [ 58.510380] ip_local_out+0x7a/0x140 [ 58.514103] __ip_queue_xmit+0x6f6/0x1df0 [ 58.518248] ? __skb_checksum+0x810/0x810 [ 58.522382] ? skb_send_sock_locked+0x760/0x760 [ 58.527037] ? reqsk_fastopen_remove+0x500/0x500 [ 58.531783] ? dccp_insert_options+0x1e2/0xb20 [ 58.536370] ip_queue_xmit+0x45/0x70 [ 58.540079] dccp_transmit_skb+0xb76/0x1290 [ 58.544401] dccp_xmit_packet+0x1a0/0x580 [ 58.548569] dccp_write_xmit+0x128/0x180 [ 58.552626] dccp_sendmsg+0x676/0xd90 [ 58.556427] ? dccp_disconnect+0xaa0/0xaa0 [ 58.560646] ? __might_sleep+0x95/0x190 [ 58.564606] ? __kasan_check_write+0x14/0x20 [ 58.569004] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 58.573922] ? aa_sk_perm+0x12c/0x520 [ 58.577717] ? copy_msghdr_from_user+0x20d/0x3f0 [ 58.582480] inet_sendmsg+0xbd/0xe0 [ 58.586098] ? inet_send_prepare+0x3b0/0x3b0 [ 58.590494] sock_sendmsg+0xdf/0x110 [ 58.594200] ___sys_sendmsg+0x658/0x990 [ 58.598172] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 58.602944] ? __fget+0x2d1/0x440 [ 58.606393] ? __x64_sys_dup2+0x2f0/0x2f0 [ 58.610529] ? lock_downgrade+0x900/0x900 [ 58.614665] ? __switch_to_asm+0x34/0x70 [ 58.618711] ? __switch_to_asm+0x34/0x70 [ 58.622766] ? __fget_light+0x17f/0x1f0 [ 58.626726] ? _raw_spin_unlock_irq+0x27/0x70 [ 58.631210] ? __fdget+0xe/0x10 [ 58.634486] __sys_sendmsg+0xd9/0x180 [ 58.638278] ? __sys_sendmsg_sock+0xb0/0xb0 [ 58.642622] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.647988] __x64_sys_sendmsg+0x73/0xb0 [ 58.652047] do_syscall_64+0xd6/0x550 [ 58.655839] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.661017] RIP: 0033:0x452f89 [ 58.665725] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.684615] RSP: 002b:00007f4552b51c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 58.692309] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 58.699563] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 58.706819] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 58.714073] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 58.721328] R13: 00000000ffffffff R14: 00007f4552b526d4 R15: 0000000000000002 [ 58.728620] CPU: 1 PID: 5066 Comm: syz-executor5 Not tainted 5.3.0-rc2+ #1 [ 58.735633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.744988] Call Trace: [ 58.747567] [ 58.749714] dump_stack+0x115/0x167 [ 58.753352] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 58.758557] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 58.763312] ? dccp_parse_options+0x333/0x1000 [ 58.767910] dccp_deliver_input_to_ccids+0xcc/0x220 [ 58.772937] dccp_rcv_established+0x49/0x70 [ 58.777259] dccp_v4_do_rcv+0xf4/0x160 [ 58.781147] __sk_receive_skb+0x2a8/0x9b0 [ 58.785307] ? sk_free+0x30/0x30 [ 58.788692] dccp_v4_rcv+0xbea/0x1bbd [ 58.792510] ip_protocol_deliver_rcu+0x537/0x740 [ 58.797293] ip_local_deliver_finish+0x1ee/0x2f0 [ 58.802053] ip_local_deliver+0x30b/0x460 [ 58.806203] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 58.811127] ? lock_downgrade+0x900/0x900 [ 58.815283] ? ip_protocol_deliver_rcu+0x740/0x740 [ 58.820060] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:412/tfrc_rx_hist_sample_rtt() [ 58.820212] ip_rcv_finish+0xae/0x180 [ 58.837152] ip_rcv+0xcb/0x2f0 [ 58.840336] ? ip_local_deliver+0x460/0x460 [ 58.844651] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 58.850007] ? ip_local_deliver+0x460/0x460 [ 58.854324] __netif_receive_skb_one_core+0x132/0x190 [ 58.859505] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 58.864692] ? lock_acquire+0x194/0x3e0 [ 58.868653] ? process_backlog+0x183/0x680 [ 58.872880] __netif_receive_skb+0x1f/0x1b0 [ 58.877193] process_backlog+0x1cc/0x680 [ 58.881239] ? __do_softirq+0x248/0x94c [ 58.885224] net_rx_action+0x42d/0xd50 [ 58.889099] ? mark_lock+0xc3/0x11c0 [ 58.892811] ? napi_complete_done+0x3d0/0x3d0 [ 58.897324] __do_softirq+0x248/0x94c [ 58.901122] ? ip_finish_output2+0x6b1/0x2220 [ 58.905608] do_softirq_own_stack+0x2a/0x40 [ 58.909914] [ 58.912138] do_softirq.part.17+0x11a/0x150 [ 58.916448] __local_bh_enable_ip+0x1ee/0x230 [ 58.920931] ip_finish_output2+0x6da/0x2220 [ 58.925254] ? ip_frag_next+0x970/0x970 [ 58.929239] __ip_finish_output+0x382/0xa90 [ 58.933549] ? __ip_finish_output+0x382/0xa90 [ 58.938048] ip_finish_output+0x27/0x170 [ 58.942100] ip_output+0x1b3/0x5d0 [ 58.945629] ? ip_mc_output+0xd40/0xd40 [ 58.949599] ? __ip_finish_output+0xa90/0xa90 [ 58.954095] ip_local_out+0x7a/0x140 [ 58.957802] __ip_queue_xmit+0x6f6/0x1df0 [ 58.961937] ? __skb_checksum+0x810/0x810 [ 58.966073] ? skb_send_sock_locked+0x760/0x760 [ 58.970729] ? reqsk_fastopen_remove+0x500/0x500 [ 58.975470] ? dccp_insert_options+0x1e2/0xb20 [ 58.980048] ip_queue_xmit+0x45/0x70 [ 58.983752] dccp_transmit_skb+0xb76/0x1290 [ 58.988075] dccp_xmit_packet+0x1a0/0x580 [ 58.992231] dccp_write_xmit+0x128/0x180 [ 58.996292] dccp_sendmsg+0x676/0xd90 [ 59.000094] ? dccp_disconnect+0xaa0/0xaa0 [ 59.004313] ? __might_sleep+0x95/0x190 [ 59.008276] ? __kasan_check_write+0x14/0x20 [ 59.012677] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 59.017593] ? aa_sk_perm+0x12c/0x520 [ 59.021381] ? copy_msghdr_from_user+0x20d/0x3f0 [ 59.026155] inet_sendmsg+0xbd/0xe0 [ 59.029772] ? inet_send_prepare+0x3b0/0x3b0 [ 59.034167] sock_sendmsg+0xdf/0x110 [ 59.037874] ___sys_sendmsg+0x658/0x990 [ 59.041845] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 59.046619] ? __fget+0x2d1/0x440 [ 59.050157] ? __x64_sys_dup2+0x2f0/0x2f0 [ 59.054294] ? lock_downgrade+0x900/0x900 [ 59.058427] ? __switch_to_asm+0x34/0x70 [ 59.062471] ? __switch_to_asm+0x34/0x70 [ 59.066534] ? __fget_light+0x17f/0x1f0 [ 59.070493] ? _raw_spin_unlock_irq+0x27/0x70 [ 59.074980] ? __fdget+0xe/0x10 [ 59.078255] __sys_sendmsg+0xd9/0x180 [ 59.082043] ? __sys_sendmsg_sock+0xb0/0xb0 [ 59.086386] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.091748] __x64_sys_sendmsg+0x73/0xb0 [ 59.095801] do_syscall_64+0xd6/0x550 [ 59.099618] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.104793] RIP: 0033:0x452f89 [ 59.107972] 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 2b ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 59.126863] RSP: 002b:00007f6b497a0c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e [ 59.134557] RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452f89 [ 59.141832] RDX: 0000000000000080 RSI: 00000000206c8000 RDI: 0000000000000005 [ 59.149090] RBP: 000000000000048a R08: 0000000000000000 R09: 0000000000000000 [ 59.156347] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4d90 [ 59.163604] R13: 00000000ffffffff R14: 00007f6b497a16d4 R15: 0000000000000002 [ 59.170906] CPU: 0 PID: 5084 Comm: syz-executor1 Not tainted 5.3.0-rc2+ #1 [ 59.177924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.187281] Call Trace: [ 59.189862] [ 59.192020] dump_stack+0x115/0x167 [ 59.195658] tfrc_rx_hist_sample_rtt.cold.4+0x47/0x4f [ 59.200861] ccid3_hc_rx_packet_recv+0x471/0xeb0 [ 59.205624] ? dccp_parse_options+0x333/0x1000 [ 59.210227] dccp_deliver_input_to_ccids+0xcc/0x220 [ 59.215254] dccp_rcv_established+0x49/0x70 [ 59.219687] dccp_v4_do_rcv+0xf4/0x160 [ 59.223579] __sk_receive_skb+0x2a8/0x9b0 [ 59.227748] ? sk_free+0x30/0x30 [ 59.231139] dccp_v4_rcv+0xbea/0x1bbd [ 59.234958] ip_protocol_deliver_rcu+0x537/0x740 [ 59.239727] ip_local_deliver_finish+0x1ee/0x2f0 [ 59.244484] ip_local_deliver+0x30b/0x460 [ 59.248646] ? ip_local_deliver_finish+0x2f0/0x2f0 [ 59.253585] ? lock_downgrade+0x900/0x900 [ 59.257744] ? ip_protocol_deliver_rcu+0x740/0x740 [ 59.262685] ip_rcv_finish+0xae/0x180 [ 59.266487] ip_rcv+0xcb/0x2f0 [ 59.269684] ? ip_local_deliver+0x460/0x460 [ 59.274017] ? ip_rcv_finish_core.isra.15+0x17e0/0x17e0 [ 59.279391] ? ip_local_deliver+0x460/0x460 [ 59.283909] __netif_receive_skb_one_core+0x132/0x190 [ 59.289109] ? __netif_receive_skb_core+0x2a40/0x2a40 [ 59.294306] ? lock_acquire+0x194/0x3e0