netlink: 92 bytes leftover after parsing attributes in process `syz-executor7'. ============================= WARNING: suspicious RCU usage 4.16.0-rc7+ #292 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-executor3/11185: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000fd890625>] lock_sock include/net/sock.h:1469 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000fd890625>] sock_setsockopt+0x16b/0x1ad0 net/core/sock.c:717 stack backtrace: netlink: 92 bytes leftover after parsing attributes in process `syz-executor7'. CPU: 1 PID: 11185 Comm: syz-executor3 Not tainted 4.16.0-rc7+ #292 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+0x194/0x24d lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 ireq_opt_deref include/net/inet_sock.h:135 [inline] inet_csk_route_req+0x824/0xca0 net/ipv4/inet_connection_sock.c:543 dccp_v4_send_response+0xa7/0x650 net/dccp/ipv4.c:485 dccp_v4_conn_request+0x9ee/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1410 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x86a/0xa70 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:909 [inline] __release_sock+0x124/0x360 net/core/sock.c:2335 release_sock+0xa4/0x2a0 net/core/sock.c:2850 sock_setsockopt+0x528/0x1ad0 net/core/sock.c:1070 SYSC_setsockopt net/socket.c:1846 [inline] SyS_setsockopt+0x2ff/0x360 net/socket.c:1829 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4552d9 RSP: 002b:00007fe8e13a5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fe8e13a66d4 RCX: 00000000004552d9 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000525 R14: 00000000006fac18 R15: 0000000000000000 ============================= WARNING: suspicious RCU usage 4.16.0-rc7+ #292 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-executor3/11185: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000fd890625>] lock_sock include/net/sock.h:1469 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000fd890625>] sock_setsockopt+0x16b/0x1ad0 net/core/sock.c:717 stack backtrace: CPU: 1 PID: 11185 Comm: syz-executor3 Not tainted 4.16.0-rc7+ #292 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+0x194/0x24d lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 ireq_opt_deref include/net/inet_sock.h:135 [inline] dccp_v4_send_response+0x4b6/0x650 net/dccp/ipv4.c:496 dccp_v4_conn_request+0x9ee/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1410 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x86a/0xa70 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:909 [inline] __release_sock+0x124/0x360 net/core/sock.c:2335 release_sock+0xa4/0x2a0 net/core/sock.c:2850 sock_setsockopt+0x528/0x1ad0 net/core/sock.c:1070 SYSC_setsockopt net/socket.c:1846 [inline] SyS_setsockopt+0x2ff/0x360 net/socket.c:1829 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4552d9 RSP: 002b:00007fe8e13a5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fe8e13a66d4 RCX: 00000000004552d9 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000525 R14: 00000000006fac18 R15: 0000000000000000 device lo entered promiscuous mode device bridge0 entered promiscuous mode IPVS: set_ctl: invalid protocol: 51 0.0.0.1:20003 lblcr device bridge0 left promiscuous mode netlink: 60 bytes leftover after parsing attributes in process `syz-executor2'. validate_nla: 1 callbacks suppressed netlink: 'syz-executor7': attribute type 6 has an invalid length. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 'syz-executor7': attribute type 6 has an invalid length. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. IPVS: ftp: loaded support on port[0] = 21 IPVS: length: 148 != 8 device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode kernel msg: ebtables bug: please report to author: Wrong len argument netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor7': attribute type 10 has an invalid length. netlink: 'syz-executor7': attribute type 10 has an invalid length. kernel msg: ebtables bug: please report to author: counter_offset != totalcnt kernel msg: ebtables bug: please report to author: counter_offset != totalcnt IPVS: set_ctl: invalid protocol: 2 0.0.0.3:20002 none bond0 (unregistering): Released all slaves