ipt_rpfilter: unknown options encountered ipt_rpfilter: unknown options encountered ====================================================== WARNING: possible circular locking dependency detected 4.16.0-rc1+ #315 Not tainted ------------------------------------------------------ syz-executor0/5694 is trying to acquire lock: (sk_lock-AF_INET6){+.+.}, at: [<000000002b3cc65d>] lock_sock include/net/sock.h:1463 [inline] (sk_lock-AF_INET6){+.+.}, at: [<000000002b3cc65d>] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 but task is already holding lock: (rtnl_mutex){+.+.}, at: [<000000008b0282cb>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1673 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654 __do_replace+0x79d/0xa50 net/ipv4/netfilter/ip_tables.c:1089 do_replace net/ipv4/netfilter/ip_tables.c:1145 [inline] do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1675 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ip_setsockopt+0x97/0xa0 net/ipv4/ip_sockglue.c:1259 udp_setsockopt+0x45/0x80 net/ipv4/udp.c:2401 ipv6_setsockopt+0xa0/0x130 net/ipv6/ipv6_sockglue.c:917 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #1 (&xt[i].mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 xt_find_table_lock+0x3e/0x3e0 net/netfilter/x_tables.c:1046 xt_request_find_table_lock+0x28/0xc0 net/netfilter/x_tables.c:1093 get_info+0x154/0x690 net/ipv6/netfilter/ip6_tables.c:989 do_ip6t_get_ctl+0x159/0xaf0 net/ipv6/netfilter/ip6_tables.c:1710 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x6a/0xc0 net/netfilter/nf_sockopt.c:122 ipv6_getsockopt+0x1df/0x2e0 net/ipv6/ipv6_sockglue.c:1371 tcp_getsockopt+0x82/0xd0 net/ipv4/tcp.c:3359 sock_common_getsockopt+0x95/0xd0 net/core/sock.c:2934 SYSC_getsockopt net/socket.c:1880 [inline] SyS_getsockopt+0x178/0x340 net/socket.c:1862 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (sk_lock-AF_INET6){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920 lock_sock_nested+0xc2/0x110 net/core/sock.c:2777 lock_sock include/net/sock.h:1463 [inline] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 ipv6_setsockopt+0xd7/0x130 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Chain exists of: sk_lock-AF_INET6 --> &xt[i].mutex --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock(&xt[i].mutex); lock(rtnl_mutex); lock(sk_lock-AF_INET6); *** DEADLOCK *** 1 lock held by syz-executor0/5694: #0: (rtnl_mutex){+.+.}, at: [<000000008b0282cb>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 stack backtrace: CPU: 0 PID: 5694 Comm: syz-executor0 Not tainted 4.16.0-rc1+ #315 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 print_circular_bug.isra.38+0x2cd/0x2dc kernel/locking/lockdep.c:1223 check_prev_add kernel/locking/lockdep.c:1863 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2417 [inline] __lock_acquire+0x30a8/0x3e00 kernel/locking/lockdep.c:3431 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920 lock_sock_nested+0xc2/0x110 net/core/sock.c:2777 lock_sock include/net/sock.h:1463 [inline] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 ipv6_setsockopt+0xd7/0x130 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x453a59 RSP: 002b:00007f3c9e307c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f3c9e3086d4 RCX: 0000000000453a59 RDX: 0000000000000014 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000096 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000503 R14: 00000000006f78e8 R15: 0000000000000000 mmap: syz-executor6 (5734) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. ip6t_REJECT: ECHOREPLY is not supported. ip6t_REJECT: ECHOREPLY is not supported. binder: 5815:5821 ERROR: BC_REGISTER_LOOPER called without request binder: 5821 RLIMIT_NICE not set audit: type=1400 audit(1518818961.283:32): avc: denied { set_context_mgr } for pid=5815 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 binder: 5815:5849 ERROR: BC_REGISTER_LOOPER called without request binder: 5849 RLIMIT_NICE not set binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 5815: binder_alloc_buf, no vma binder: 5815:5869 transaction failed 29189/-3, size 0-0 line 2957 audit: type=1400 audit(1518818961.309:33): avc: denied { map } for pid=5815 comm="syz-executor5" path="/dev/binder0" dev="devtmpfs" ino=136 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1 binder: 5815:5859 ioctl 40046207 0 returned -16 binder: 5849 RLIMIT_NICE not set QAT: Invalid ioctl binder: undelivered TRANSACTION_ERROR: 29189 QAT: Invalid ioctl binder: release 5815:5821 transaction 2 out, still active binder: undelivered TRANSACTION_COMPLETE binder: release 5815:5849 transaction 2 in, still active binder: send failed reply for transaction 2, target dead xt_connbytes: Forcing CT accounting to be enabled device eql entered promiscuous mode binder: BINDER_SET_CONTEXT_MGR already set binder: 6209:6239 ioctl 40046207 0 returned -16 binder: 6209:6239 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 6209:6229 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: undelivered death notification, 0000000000000000 device eql entered promiscuous mode xt_CT: No such helper "pptp" xt_CT: No such helper "pptp" SELinux: policydb magic number 0x0 does not match expected magic number 0xf97cff8c SELinux: failed to load policy do_dccp_getsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app binder: 6416 RLIMIT_NICE not set binder: 6401:6416 BC_DEAD_BINDER_DONE 0000000000000003 not found netlink: 'syz-executor7': attribute type 6 has an invalid length. binder: 6401:6434 tried to acquire reference to desc 0, got 1 instead capability: warning: `syz-executor2' uses deprecated v2 capabilities in a way that may be insecure binder: 6401:6434 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 6416 RLIMIT_NICE not set binder: 6401:6416 BC_DEAD_BINDER_DONE 0000000000000003 not found device eql entered promiscuous mode PPPIOCDETACH file->f_count=2 syz-executor4 uses obsolete (PF_INET,SOCK_PACKET) device eql entered promiscuous mode xt_CT: You must specify a L4 protocol, and not use inversions on it. xt_CT: You must specify a L4 protocol, and not use inversions on it. QAT: Invalid ioctl QAT: Invalid ioctl QAT: failed to copy from user cfg_data. QAT: failed to copy from user cfg_data. QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl kauditd_printk_skb: 13 callbacks suppressed audit: type=1400 audit(1518818964.648:47): avc: denied { name_connect } for pid=6719 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 QAT: Invalid ioctl x_tables: ip6_tables: CLASSIFY target: used from hooks INPUT/OUTPUT, but only usable from FORWARD/OUTPUT/POSTROUTING QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Stopping all acceleration devices. device eql entered promiscuous mode QAT: Stopping all acceleration devices. device eql entered promiscuous mode device eql entered promiscuous mode PPPIOCDETACH file->f_count=2 binder: send failed reply for transaction 11 to 7002:7006 binder: 7002:7006 ioctl 89e2 20ef4ffc returned -22 binder: send failed reply for transaction 13 to 7002:7019 binder: 7002:7026 ioctl 89e2 20ef4ffc returned -22 audit: type=1400 audit(1518818966.134:48): avc: denied { prog_run } for pid=7028 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=31 sclass=netlink_route_socket pig=7069 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=31 sclass=netlink_route_socket pig=7085 comm=syz-executor0 QAT: Invalid ioctl audit: type=1400 audit(1518818966.501:49): avc: denied { setattr } for pid=7144 comm="syz-executor3" name="NETLINK" dev="sockfs" ino=19565 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 openvswitch: netlink: Message has 8 unknown bytes. binder: 7192 RLIMIT_NICE not set binder: BINDER_SET_CONTEXT_MGR already set binder: 7199 RLIMIT_NICE not set binder: 7186:7192 ioctl 40046207 0 returned -16 device eql entered promiscuous mode BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 7352, name: syz-executor5 INFO: lockdep is turned off. CPU: 0 PID: 7352 Comm: syz-executor5 Not tainted 4.16.0-rc1+ #315 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 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6133 __might_sleep+0x95/0x190 kernel/sched/core.c:6086 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x453a59 RSP: 002b:00007f30a01c1c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f30a01c26d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 00000000200eafc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020472ff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 ipt_CLUSTERIP: Please specify destination IP ipt_CLUSTERIP: Please specify destination IP audit: type=1400 audit(1518818968.110:50): avc: denied { map } for pid=7537 comm="syz-executor4" path="/dev/autofs" dev="devtmpfs" ino=79 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:autofs_device_t:s0 tclass=chr_file permissive=1 audit: type=1400 audit(1518818968.154:51): avc: denied { net_broadcast } for pid=7537 comm="syz-executor4" capability=11 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 syz0: Invalid MTU 0 requested, hw min 68 syz0: Invalid MTU 0 requested, hw min 68 tmpfs: Bad mount option ,4MÏÄ7ö³É tmpfs: Bad mount option ,4MÏÄ7ö³É BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 7858, name: syz-executor1 INFO: lockdep is turned off. audit: type=1400 audit(1518818969.118:52): avc: denied { map } for pid=7846 comm="syz-executor2" path="socket:[20820]" dev="sockfs" ino=20820 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=rawip_socket permissive=1 CPU: 1 PID: 7858 Comm: syz-executor1 Tainted: G W 4.16.0-rc1+ #315 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 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6133 __might_sleep+0x95/0x190 kernel/sched/core.c:6086 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x453a59 RSP: 002b:00007f34a2ce0c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f34a2ce16d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 00000000200dafc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004a7 R14: 00000000006f7048 R15: 0000000000000000 xt_TPROXY: Can be used only in combination with either -p tcp or -p udp xt_TPROXY: Can be used only in combination with either -p tcp or -p udp audit: type=1400 audit(1518818969.811:53): avc: denied { map } for pid=7950 comm="syz-executor3" path="/dev/loop0" dev="devtmpfs" ino=9094 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fixed_disk_device_t:s0 tclass=blk_file permissive=1 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium