kernel msg: ebtables bug: please report to author: Valid hook without chain ============================= WARNING: suspicious RCU usage 4.19.0-rc4+ #230 Not tainted ----------------------------- include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor0/31996: #0: 00000000a466909d (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1492 [inline] #0: 00000000a466909d (sk_lock-AF_INET6){+.+.}, at: dccp_sendmsg+0x196/0x1020 net/dccp/proto.c:770 stack backtrace: CPU: 0 PID: 31996 Comm: syz-executor0 Not tainted 4.19.0-rc4+ #230 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lockdep_rcu_suspicious+0x14a/0x153 kernel/locking/lockdep.c:4536 ireq_opt_deref include/net/inet_sock.h:135 [inline] inet_csk_route_req+0x977/0xde0 net/ipv4/inet_connection_sock.c:547 dccp_v4_send_response+0xb4/0x6d0 net/dccp/ipv4.c:485 dccp_v4_conn_request+0xc81/0x1390 net/dccp/ipv4.c:634 dccp_v6_conn_request+0xdb9/0x1660 net/dccp/ipv6.c:317 kernel msg: ebtables bug: please report to author: Valid hook without chain dccp_rcv_state_process+0x6f7/0x1a32 net/dccp/input.c:612 dccp_v4_do_rcv+0x102/0x180 net/dccp/ipv4.c:683 dccp_v6_do_rcv+0x99d/0xbf0 net/dccp/ipv6.c:579 sk_backlog_rcv include/net/sock.h:932 [inline] __release_sock+0x12f/0x3a0 net/core/sock.c:2336 release_sock+0xad/0x2c0 net/core/sock.c:2849 dccp_sendmsg+0x8d0/0x1020 net/dccp/proto.c:818 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x51d/0x930 net/socket.c:2116 __sys_sendmmsg+0x246/0x6d0 net/socket.c:2211 kernel msg: ebtables bug: please report to author: Valid hook without chain __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8459668c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f84596696d4 RCX: 0000000000457679 RDX: 0000000000000001 RSI: 0000000020005700 RDI: 0000000000000006 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5440 R14: 00000000004c35ee R15: 0000000000000001 ============================= WARNING: suspicious RCU usage 4.19.0-rc4+ #230 Not tainted ----------------------------- include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor0/31996: #0: 00000000a466909d (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1492 [inline] #0: 00000000a466909d (sk_lock-AF_INET6){+.+.}, at: dccp_sendmsg+0x196/0x1020 net/dccp/proto.c:770 stack backtrace: CPU: 0 PID: 31996 Comm: syz-executor0 Not tainted 4.19.0-rc4+ #230 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lockdep_rcu_suspicious+0x14a/0x153 kernel/locking/lockdep.c:4536 ireq_opt_deref include/net/inet_sock.h:135 [inline] dccp_v4_send_response+0x537/0x6d0 net/dccp/ipv4.c:496 dccp_v4_conn_request+0xc81/0x1390 net/dccp/ipv4.c:634 dccp_v6_conn_request+0xdb9/0x1660 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x6f7/0x1a32 net/dccp/input.c:612 dccp_v4_do_rcv+0x102/0x180 net/dccp/ipv4.c:683 dccp_v6_do_rcv+0x99d/0xbf0 net/dccp/ipv6.c:579 sk_backlog_rcv include/net/sock.h:932 [inline] __release_sock+0x12f/0x3a0 net/core/sock.c:2336 release_sock+0xad/0x2c0 net/core/sock.c:2849 dccp_sendmsg+0x8d0/0x1020 net/dccp/proto.c:818 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x51d/0x930 net/socket.c:2116 __sys_sendmmsg+0x246/0x6d0 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8459668c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f84596696d4 RCX: 0000000000457679 RDX: 0000000000000001 RSI: 0000000020005700 RDI: 0000000000000006 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5440 R14: 00000000004c35ee R15: 0000000000000001 kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain device veth0_to_bond left promiscuous mode kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain dccp_close: ABORT with 14640 bytes unread kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain kernel msg: ebtables bug: please report to author: Valid hook without chain A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. kernel msg: ebtables bug: please report to author: Valid hook without chain