============================= 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/u4:6/5865: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<00000000649f0aa8>] process_one_work+0x71f/0x14a0 kernel/workqueue.c:2083 #1: (net_cleanup_work){+.+.}, at: [<0000000013af4507>] process_one_work+0x757/0x14a0 kernel/workqueue.c:2087 #2: (net_mutex){+.+.}, at: [<000000000c0e285a>] cleanup_net+0x139/0x8b0 net/core/net_namespace.c:450 stack backtrace: CPU: 0 PID: 5865 Comm: kworker/u4:6 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 QAT: Device 2 not found QAT: Device 2 not found device syz3 entered promiscuous mode QAT: Invalid ioctl QAT: Invalid ioctl kauditd_printk_skb: 155 callbacks suppressed audit: type=1400 audit(1514912857.313:477): avc: denied { getrlimit } for pid=7248 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=process permissive=1 audit: type=1326 audit(1514912857.361:478): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.369:479): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.370:480): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=2 compat=0 ip=0x40ce01 code=0x7ffc0000 audit: type=1326 audit(1514912857.372:481): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.372:482): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.373:483): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=193 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.374:484): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.374:485): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912857.374:486): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7253 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=16 compat=0 ip=0x452ac9 code=0x7ffc0000 device eql entered promiscuous mode netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. binder: 7410:7419 BC_CLEAR_DEATH_NOTIFICATION invalid ref -4 binder: 7419 RLIMIT_NICE not set binder: 7410:7428 tried to acquire reference to desc 0, got 1 instead binder: 7410:7428 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 7410:7419 BC_CLEAR_DEATH_NOTIFICATION invalid ref -4 binder: 7419 RLIMIT_NICE not set binder: 7410:7428 BC_DEAD_BINDER_DONE 0000000000000000 not found netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. binder: 7580:7583 got reply transaction with no transaction stack binder: 7580:7583 transaction failed 29201/-71, size 0-8 line 2760 binder: 7580:7583 got reply transaction with no transaction stack binder: 7580:7583 transaction failed 29201/-71, size 0-8 line 2760 device gre0 entered promiscuous mode RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? binder: BINDER_SET_CONTEXT_MGR already set device syz0 entered promiscuous mode binder: 8008:8016 ioctl 40046207 0 returned -16 netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 'syz-executor6': attribute type 1 has an invalid length. binder: 8266:8278 IncRefs 0 refcount change on invalid ref 0 ret -22 binder: 8266:8278 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 8266:8278 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 8266:8278 got reply transaction with no transaction stack binder: 8266:8278 transaction failed 29201/-71, size 24-40 line 2760 binder: 8266:8285 IncRefs 0 refcount change on invalid ref 0 ret -22 binder: 8266:8285 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 8266:8285 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 8266:8285 got reply transaction with no transaction stack binder: 8266:8285 transaction failed 29201/-71, size 24-40 line 2760 netlink: 'syz-executor6': attribute type 1 has an invalid length. binder: BINDER_SET_CONTEXT_MGR already set binder: 8317:8322 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 8317:8327 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 8317:8327 ioctl 40046207 0 returned -16 device eql entered promiscuous mode kvm [8642]: vcpu0, guest rIP: 0xfff0 unimplemented MMIO_CONF_BASE wrmsr: 0x3e2d binder_alloc: 8670: binder_alloc_buf failed to map page at 20000000 in userspace binder: 8670:8676 transaction failed 29201/-12, size 0-0 line 2960 binder: 8670:8684 ioctl 540f 20b3b000 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 8670:8684 ioctl 40046207 0 returned -16 binder_alloc: 8670: binder_alloc_buf, no vma binder: 8670:8702 transaction failed 29189/-3, size 0-0 line 2960 binder: 8670:8676 ioctl 540f 20b3b000 returned -22 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 kauditd_printk_skb: 108 callbacks suppressed audit: type=1326 audit(1514912864.245:594): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.252:595): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=43 compat=0 ip=0x452ac9 code=0x7ffc0000 nla_parse: 5 callbacks suppressed netlink: 10 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor6'. audit: type=1326 audit(1514912864.252:596): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.252:597): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.277:598): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=55 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.277:599): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.277:600): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.311:601): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=209 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.311:602): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912864.311:603): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8898 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000