BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 10795 Comm: syz-executor.0 Not tainted 5.1.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 tfrc_rx_hist_sample_rtt.cold+0x56/0x61 net/dccp/ccids/lib/packet_history.c:422
 ccid3_hc_rx_packet_recv+0x5c6/0xeb0 net/dccp/ccids/ccid3.c:767
 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
 dccp_deliver_input_to_ccids+0xee/0x280 net/dccp/input.c:180
 dccp_rcv_established net/dccp/input.c:378 [inline]
 dccp_rcv_established+0x83/0xb0 net/dccp/input.c:368
 dccp_v4_do_rcv+0x139/0x190 net/dccp/ipv4.c:659
 sk_backlog_rcv include/net/sock.h:950 [inline]
 __sk_receive_skb+0x33a/0xbe0 net/core/sock.c:528
 dccp_v4_rcv+0xeaa/0x1bf1 net/dccp/ipv4.c:880
 ip_protocol_deliver_rcu+0x74c/0x940 net/ipv4/ip_input.c:211
 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:238
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:259
 dst_input include/net/dst.h:439 [inline]
 ip_rcv_finish+0x1e1/0x300 net/ipv4/ip_input.c:420
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:530
 __netif_receive_skb_one_core+0x18d/0x1f0 net/core/dev.c:4990
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5104
 process_backlog+0x206/0x750 net/core/dev.c:5944
 napi_poll net/core/dev.c:6367 [inline]
 net_rx_action+0x4fa/0x1070 net/core/dev.c:6433
 __do_softirq+0x266/0x95a kernel/softirq.c:293
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1026
 </IRQ>
 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:338
 do_softirq kernel/softirq.c:330 [inline]
 __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:190
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:684 [inline]
 ip_finish_output2+0x952/0x24e0 net/ipv4/ip_output.c:228
 ip_finish_output+0x734/0xd50 net/ipv4/ip_output.c:314
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip_output+0x21f/0x670 net/ipv4/ip_output.c:402
 dst_output include/net/dst.h:433 [inline]
 ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124
 __ip_queue_xmit+0x86f/0x1bf0 net/ipv4/ip_output.c:502
 ip_queue_xmit+0x5a/0x70 include/net/ip.h:202
 dccp_transmit_skb+0xca5/0x12c0 net/dccp/output.c:142
 dccp_xmit_packet+0x1f6/0x660 net/dccp/output.c:281
 dccp_write_xmit+0x181/0x1e0 net/dccp/output.c:363
 dccp_sendmsg+0xa60/0xd00 net/dccp/proto.c:816
 inet_sendmsg+0x147/0x5e0 net/ipv4/af_inet.c:802
 sock_sendmsg_nosec net/socket.c:660 [inline]
 sock_sendmsg+0xf2/0x170 net/socket.c:671
 sock_write_iter+0x27c/0x3e0 net/socket.c:1000
 call_write_iter include/linux/fs.h:1872 [inline]
 new_sync_write+0x4d9/0x770 fs/read_write.c:483
 __vfs_write+0xe4/0x110 fs/read_write.c:496
 vfs_write+0x20c/0x580 fs/read_write.c:558
 ksys_write+0x14f/0x290 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:620
 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4ec002c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9
RDX: 0000000000000012 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4ec0036d4
R13: 00000000004c8808 R14: 00000000004def78 R15: 00000000ffffffff
BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 10842 Comm: syz-executor.0 Not tainted 5.1.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 tfrc_rx_hist_sample_rtt.cold+0x56/0x61 net/dccp/ccids/lib/packet_history.c:422
 ccid3_hc_rx_packet_recv+0x5c6/0xeb0 net/dccp/ccids/ccid3.c:767
 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
 dccp_deliver_input_to_ccids+0xee/0x280 net/dccp/input.c:180
 dccp_rcv_established net/dccp/input.c:378 [inline]
 dccp_rcv_established+0x83/0xb0 net/dccp/input.c:368
 dccp_v4_do_rcv+0x139/0x190 net/dccp/ipv4.c:659
 sk_backlog_rcv include/net/sock.h:950 [inline]
 __sk_receive_skb+0x33a/0xbe0 net/core/sock.c:528
 dccp_v4_rcv+0xeaa/0x1bf1 net/dccp/ipv4.c:880
 ip_protocol_deliver_rcu+0x74c/0x940 net/ipv4/ip_input.c:211
 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:238
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:259
 dst_input include/net/dst.h:439 [inline]
 ip_rcv_finish+0x1e1/0x300 net/ipv4/ip_input.c:420
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:530
 __netif_receive_skb_one_core+0x18d/0x1f0 net/core/dev.c:4990
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5104
 process_backlog+0x206/0x750 net/core/dev.c:5944
 napi_poll net/core/dev.c:6367 [inline]
 net_rx_action+0x4fa/0x1070 net/core/dev.c:6433
 __do_softirq+0x266/0x95a kernel/softirq.c:293
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1026
 </IRQ>
 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:338
 do_softirq kernel/softirq.c:330 [inline]
 __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:190
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:684 [inline]
 ip_finish_output2+0x952/0x24e0 net/ipv4/ip_output.c:228
 ip_finish_output+0x734/0xd50 net/ipv4/ip_output.c:314
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip_output+0x21f/0x670 net/ipv4/ip_output.c:402
 dst_output include/net/dst.h:433 [inline]
 ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124
 __ip_queue_xmit+0x86f/0x1bf0 net/ipv4/ip_output.c:502
 ip_queue_xmit+0x5a/0x70 include/net/ip.h:202
 dccp_transmit_skb+0xca5/0x12c0 net/dccp/output.c:142
 dccp_xmit_packet+0x1f6/0x660 net/dccp/output.c:281
 dccp_write_xmit+0x181/0x1e0 net/dccp/output.c:363
 dccp_sendmsg+0xa60/0xd00 net/dccp/proto.c:816
 inet_sendmsg+0x147/0x5e0 net/ipv4/af_inet.c:802
 sock_sendmsg_nosec net/socket.c:660 [inline]
 sock_sendmsg+0xf2/0x170 net/socket.c:671
 sock_write_iter+0x27c/0x3e0 net/socket.c:1000
 call_write_iter include/linux/fs.h:1872 [inline]
 new_sync_write+0x4d9/0x770 fs/read_write.c:483
 __vfs_write+0xe4/0x110 fs/read_write.c:496
 vfs_write+0x20c/0x580 fs/read_write.c:558
 ksys_write+0x14f/0x290 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:620
 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4ebf9fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9
RDX: 0000000000000012 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4ebfa06d4
R13: 00000000004c8808 R14: 00000000004def78 R15: 00000000ffffffff
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1