============================= 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/u4:5/6980: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<00000000daebe1c9>] process_one_work+0x71f/0x14a0 kernel/workqueue.c:2083 #1: (net_cleanup_work){+.+.}, at: [<0000000001835f26>] process_one_work+0x757/0x14a0 kernel/workqueue.c:2087 #2: (net_mutex){+.+.}, at: [<0000000085dd6af8>] cleanup_net+0x139/0x8b0 net/core/net_namespace.c:450 stack backtrace: CPU: 0 PID: 6980 Comm: kworker/u4:5 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=15028 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=15028 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=15069 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=15046 comm=syz-executor5 device syz2 entered promiscuous mode netlink: 'syz-executor1': attribute type 27 has an invalid length. ICMPv6: NA: bb:bb:bb:bb:bb:07 advertised our address fe80::7aa on syz7! ICMPv6: NA: bb:bb:bb:bb:bb:07 advertised our address fe80::7aa on syz7! netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 240 bytes leftover after parsing attributes in process `syz-executor2'. device gre0 left promiscuous mode device gre0 entered promiscuous mode device gre0 left promiscuous mode kauditd_printk_skb: 74 callbacks suppressed audit: type=1326 audit(1514914078.882:1186): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.883:1187): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.883:1188): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=212 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1189): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1190): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1191): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1192): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1193): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1194): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=16 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914078.913:1195): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=15691 comm="syz-executor0" exe="/root/syz-executor0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 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: 3 bytes leftover after parsing attributes in process `syz-executor0'. encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified device gre0 entered promiscuous mode device eql entered promiscuous mode netlink: 'syz-executor5': attribute type 3 has an invalid length. device syz4 entered promiscuous mode netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. device syz2 entered promiscuous mode netlink: 16 bytes leftover after parsing attributes in process `syz-executor1'. QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=16325 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=16325 comm=syz-executor5 binder: 16336 RLIMIT_NICE not set binder: 16336 RLIMIT_NICE not set binder_alloc: binder_alloc_mmap_handler: 16332 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 16332:16336 ioctl 40046207 0 returned -16 binder_alloc: 16332: binder_alloc_buf, no vma binder: 16332:16351 transaction failed 29189/-3, size 0-0 line 2960 binder: 16351 RLIMIT_NICE not set binder_alloc: 16332: binder_alloc_buf, no vma binder: 16332:16366 transaction failed 29189/-3, size 0-0 line 2960 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 16332:16336 transaction 75 out, still active binder: undelivered TRANSACTION_COMPLETE binder: release 16332:16336 transaction 75 in, still active binder: send failed reply for transaction 75, target dead binder: release 16332:16351 transaction 76 out, still active binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 76, target dead binder: undelivered TRANSACTION_ERROR: 29189 binder: BINDER_SET_CONTEXT_MGR already set binder: 16397:16409 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 16397:16417 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 16397:16417 ioctl 40046207 0 returned -16 could not allocate digest TFM handle rm(2w?z_mo~Ħ"2:) F<$,ɰ6 could not allocate digest TFM handle rm(2w?z_mo~Ħ"2:) F<$,ɰ6 binder: 16753:16757 transaction failed 29189/-22, size 80-16 line 2845 binder: 16753:16757 transaction failed 29189/-22, size 80-16 line 2845 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 device syz7 entered promiscuous mode kauditd_printk_skb: 156 callbacks suppressed audit: type=1326 audit(1514914084.058:1352): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.059:1353): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.062:1354): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.062:1355): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=16 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.063:1356): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.065:1357): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.068:1358): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=246 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.069:1359): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.069:1360): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514914084.069:1361): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16882 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=9 compat=0 ip=0x452ac9 code=0x7ffc0000 nla_parse: 5 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. binder: 17036:17039 BC_ACQUIRE_DONE u0000000000000000 no match