netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() CPU: 1 PID: 3203 Comm: syz-executor4 Not tainted 4.15.0-rc2-mm1+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 tfrc_rx_hist_sample_rtt+0x407/0x4d0 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x690/0xea7 net/dccp/ccids/ccid3.c:765 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xd9/0x250 net/dccp/input.c:180 dccp_rcv_established+0x88/0xb0 net/dccp/input.c:378 dccp_v4_do_rcv+0x12f/0x160 net/dccp/ipv4.c:653 sk_backlog_rcv include/net/sock.h:907 [inline] __sk_receive_skb+0x33e/0xc10 net/core/sock.c:511 dccp_v4_rcv+0xeeb/0x1bf0 net/dccp/ipv4.c:874 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:281 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:449 [inline] ip_rcv_finish+0x881/0x19a0 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:281 [inline] ip_rcv+0xc3f/0x1820 net/ipv4/ip_input.c:493 __netif_receive_skb_core+0x1a3e/0x3450 net/core/dev.c:4461 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x8a7/0x1460 net/ipv4/ip_output.c:231 ip_finish_output+0x85e/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:270 [inline] ip_output+0x1cc/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 call_write_iter include/linux/fs.h:1776 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:482 vfs_write+0x18f/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f99dda90c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f99dda91700 RCX: 0000000000452a39 RDX: 000000000000005a RSI: 000000002077f000 RDI: 0000000000000005 RBP: 00007ffdf44f9750 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 00007ffdf44f96cf R14: 00007f99dda919c0 R15: 000000000000000a dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 2 bytes unread dccp_close: ABORT with 36 bytes unread dccp_close: ABORT with 36 bytes unread BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 3237 Comm: syz-executor4 Not tainted 4.15.0-rc2-mm1+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 tfrc_rx_hist_sample_rtt+0x407/0x4d0 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x690/0xea7 net/dccp/ccids/ccid3.c:765 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xd9/0x250 net/dccp/input.c:180 dccp_rcv_established+0x88/0xb0 net/dccp/input.c:378 dccp_v4_do_rcv+0x12f/0x160 net/dccp/ipv4.c:653 sk_backlog_rcv include/net/sock.h:907 [inline] __sk_receive_skb+0x33e/0xc10 net/core/sock.c:511 dccp_v4_rcv+0xeeb/0x1bf0 net/dccp/ipv4.c:874 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:281 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:449 [inline] ip_rcv_finish+0x881/0x19a0 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:281 [inline] ip_rcv+0xc3f/0x1820 net/ipv4/ip_input.c:493 __netif_receive_skb_core+0x1a3e/0x3450 net/core/dev.c:4461 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x8a7/0x1460 net/ipv4/ip_output.c:231 ip_finish_output+0x85e/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:270 [inline] ip_output+0x1cc/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 call_write_iter include/linux/fs.h:1776 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:482 vfs_write+0x18f/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f99dda90c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f99dda91700 RCX: 0000000000452a39 RDX: 000000000000005a RSI: 000000002077f000 RDI: 0000000000000005 RBP: 00007ffdf44f9750 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 00007ffdf44f96cf R14: 00007f99dda919c0 R15: 000000000000000a BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 3269 Comm: syz-executor3 Not tainted 4.15.0-rc2-mm1+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 tfrc_rx_hist_sample_rtt+0x407/0x4d0 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x690/0xea7 net/dccp/ccids/ccid3.c:765 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xd9/0x250 net/dccp/input.c:180 dccp_rcv_established+0x88/0xb0 net/dccp/input.c:378 dccp_v4_do_rcv+0x12f/0x160 net/dccp/ipv4.c:653 sk_backlog_rcv include/net/sock.h:907 [inline] __sk_receive_skb+0x33e/0xc10 net/core/sock.c:511 dccp_v4_rcv+0xeeb/0x1bf0 net/dccp/ipv4.c:874 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:281 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x8a7/0x1460 net/ipv4/ip_output.c:231 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x8a7/0x1460 net/ipv4/ip_output.c:231 ip_finish_output+0x85e/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:270 [inline] ip_output+0x1cc/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 RSP: 002b:00007f99dda90c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 NF_HOOK_COND include/linux/netfilter.h:270 [inline] ip_output+0x1cc/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x20f/0x730 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x6d0/0xa80 net/dccp/proto.c:808 NF_HOOK_COND include/linux/netfilter.h:270 [inline] ip_output+0x1cc/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1133 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x8a7/0x1460 net/ipv4/ip_output.c:231 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 process_backlog+0x203/0x740 net/core/dev.c:5205 napi_poll net/core/dev.c:5603 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5669 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4526 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285 R13: 00007ffe4a4ec4cf R14: 00007fd7f91a09c0 R15: 000000000000000a