============================= WARNING: suspicious RCU usage 4.15.0-rc6-next-20180102+ #86 Not tainted ----------------------------- net/netfilter/ipset/ip_set_core.c:2057 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by kworker/u4:4/4187: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<0000000051b27bd3>] process_one_work+0x71f/0x14a0 kernel/workqueue.c:2083 #1: (net_cleanup_work){+.+.}, at: [<00000000f3245a9b>] process_one_work+0x757/0x14a0 kernel/workqueue.c:2087 #2: (net_mutex){+.+.}, at: [<00000000512dce93>] cleanup_net+0x139/0x8b0 net/core/net_namespace.c:450 stack backtrace: CPU: 1 PID: 4187 Comm: kworker/u4:4 Not tainted 4.15.0-rc6-next-20180102+ #86 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x137/0x198 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4585 ip_set_net_exit+0x2c6/0x480 net/netfilter/ipset/ip_set_core.c:2057 ops_exit_list.isra.6+0xae/0x150 net/core/net_namespace.c:142 cleanup_net+0x3f3/0x8b0 net/core/net_namespace.c:484 process_one_work+0x801/0x14a0 kernel/workqueue.c:2112 worker_thread+0xe0/0x1010 kernel/workqueue.c:2246 kthread+0x33c/0x400 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524 irq bypass consumer (token 00000000d6cd8171) registration fails: -16 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=6706 comm=syz-executor6 device gre0 entered promiscuous mode PPPIOCDETACH file->f_count=2 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl netlink: 17 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor1'. binder: 6990:6993 BC_CLEAR_DEATH_NOTIFICATION invalid ref 1 binder: 6993 RLIMIT_NICE not set netlink: 2 bytes leftover after parsing attributes in process `syz-executor4'. openvswitch: netlink: Message has 1 unknown bytes. binder: BINDER_SET_CONTEXT_MGR already set binder: 6990:7007 ioctl 40046207 0 returned -16 binder: 6990:7012 BC_CLEAR_DEATH_NOTIFICATION invalid ref 1 binder: 7012 RLIMIT_NICE not set netlink: 'syz-executor0': attribute type 27 has an invalid length. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. device eql entered promiscuous mode netlink: 'syz-executor0': attribute type 27 has an invalid length. QAT: Invalid ioctl QAT: Invalid ioctl kauditd_printk_skb: 192 callbacks suppressed audit: type=1326 audit(1514912992.675:454): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.676:455): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.682:456): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.683:457): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.683:458): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.711:459): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=55 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.711:460): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.711:461): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.714:462): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=55 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912992.714:463): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7218 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 syz-executor1: vmalloc: allocation failure: 7178027008 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor1 cpuset=/ mems_allowed=0 netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. CPU: 1 PID: 7277 Comm: syz-executor1 Not tainted 4.15.0-rc6-next-20180102+ #86 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+0x137/0x198 lib/dump_stack.c:53 warn_alloc+0x160/0x260 mm/page_alloc.c:3313 __vmalloc_node_range+0x4f0/0x650 mm/vmalloc.c:1719 __vmalloc_node mm/vmalloc.c:1748 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1770 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x20e/0x1660 net/ipv6/netfilter/ip6_tables.c:699 do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] do_ip6t_set_ctl+0x281/0x430 net/ipv6/netfilter/ip6_tables.c:1686 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2874 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1821 [inline] SyS_setsockopt+0x158/0x240 net/socket.c:1800 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007fa74470dc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000452ac9 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 0000000000000104 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020001fde R11: 0000000000000212 R12: 00000000006ef900 R13: 00000000ffffffff R14: 00007fa74470e6d4 R15: 0000000000000002 Mem-Info: active_anon:75538 inactive_anon:63 isolated_anon:0 active_file:3593 inactive_file:9310 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8631 slab_unreclaimable:91390 mapped:23180 shmem:72 pagetables:784 bounce:0 free:1416257 free_pcp:412 free_cma:0 netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. Node 0 active_anon:287556kB inactive_anon:252kB active_file:14372kB inactive_file:37240kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:92720kB dirty:0kB writeback:0kB shmem:288kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 137216kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2881 6392 6392 Node 0 DMA32 free:2951788kB min:30384kB low:37980kB high:45576kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2952592kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:804kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 3511 3511 Node 0 Normal free:2715892kB min:37032kB low:46288kB high:55544kB active_anon:287556kB inactive_anon:252kB active_file:14372kB inactive_file:37240kB unevictable:0kB writepending:48kB present:4718592kB managed:3595920kB mlocked:0kB kernel_stack:4000kB pagetables:2840kB bounce:0kB free_pcp:1160kB local_pcp:528kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 4*8kB (UM) 2*16kB (UM) 1*32kB (M) 4*64kB (UM) 2*128kB (M) 4*256kB (UM) 2*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 718*4096kB (M) = 2951788kB Node 0 Normal: 131*4kB (UME) 137*8kB (UME) 61*16kB (UME) 741*32kB (UME) 307*64kB (UM) 7*128kB (UM) 8*256kB (UM) 3*512kB (U) 3*1024kB (UM) 4*2048kB (UME) 648*4096kB (M) = 2715908kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 12982 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 324874 pages reserved syz-executor1: vmalloc: allocation failure: 7178027008 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor1 cpuset=/ mems_allowed=0 CPU: 1 PID: 7298 Comm: syz-executor1 Not tainted 4.15.0-rc6-next-20180102+ #86 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+0x137/0x198 lib/dump_stack.c:53 warn_alloc+0x160/0x260 mm/page_alloc.c:3313 __vmalloc_node_range+0x4f0/0x650 mm/vmalloc.c:1719 __vmalloc_node mm/vmalloc.c:1748 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1770 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x20e/0x1660 net/ipv6/netfilter/ip6_tables.c:699 do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] do_ip6t_set_ctl+0x281/0x430 net/ipv6/netfilter/ip6_tables.c:1686 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2874 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1821 [inline] SyS_setsockopt+0x158/0x240 net/socket.c:1800 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007fa7446cbc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000071c0c8 RCX: 0000000000452ac9 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 0000000000000104 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020001fde R11: 0000000000000212 R12: 00000000006ef900 R13: 00000000ffffffff R14: 00007fa7446cc6d4 R15: 0000000000000002 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=260 sclass=netlink_route_socket pig=7413 comm=syz-executor4 binder: 7414:7419 BC_ACQUIRE_DONE u0000000000000000 no match binder: 7414:7438 BC_ACQUIRE_DONE u0000000000000000 no match netlink: 40 bytes leftover after parsing attributes in process `syz-executor7'. dccp_v4_rcv: dropped packet with invalid checksum dccp_v4_rcv: dropped packet with invalid checksum QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl device syz2 entered promiscuous mode binder: 7961:7966 transaction failed 29189/-22, size 0-0 line 2845 binder: 7961:7966 ioctl c0306201 2027cfd0 returned -14 binder: 7961:7981 transaction failed 29189/-22, size 0-0 line 2845 binder: 7961:7997 ioctl c0306201 2027cfd0 returned -14 RDS: rds_bind could not find a transport for 255.255.255.255, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 255.255.255.255, load rds_tcp or rds_rdma? binder: undelivered TRANSACTION_ERROR: 29189 netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. binder_alloc: 8299: binder_alloc_buf failed to map page at 20000000 in userspace binder: 8299:8303 transaction failed 29201/-12, size 0-0 line 2960 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 8299: binder_alloc_buf, no vma binder: 8299:8316 transaction failed 29189/-3, size 0-0 line 2960 binder: 8299:8303 ioctl 40046207 0 returned -16 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 device gre0 entered promiscuous mode device eql entered promiscuous mode binder: 8435:8438 got transaction with invalid data ptr binder: 8435:8438 transaction failed 29201/-14, size 167-4 line 2979 kauditd_printk_skb: 134 callbacks suppressed audit: type=1400 audit(1514912998.624:597): avc: denied { map } for pid=8452 comm="syz-executor4" path="/dev/usbmon0" dev="devtmpfs" ino=8927 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_file permissive=1 binder: BINDER_SET_CONTEXT_MGR already set binder: 8435:8438 ioctl 40046207 0 returned -16 binder: undelivered TRANSACTION_ERROR: 29201 QAT: Invalid ioctl QAT: Invalid ioctl