============================= netlink: 40 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor2'. 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/u4:2/33: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<00000000f86d09cf>] process_one_work+0x71f/0x14a0 kernel/workqueue.c:2083 #1: (net_cleanup_work){+.+.}, at: [<0000000063db8e66>] process_one_work+0x757/0x14a0 kernel/workqueue.c:2087 #2: (net_mutex){+.+.}, at: [<000000006d58e5fe>] cleanup_net+0x139/0x8b0 net/core/net_namespace.c:450 stack backtrace: CPU: 1 PID: 33 Comm: kworker/u4:2 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 device eql entered promiscuous mode netlink: 6 bytes leftover after parsing attributes in process `syz-executor5'. tmpfs: Bad mount option ]g4G tmpfs: Bad mount option ]g4G netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. device eql entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=5435 comm=syz-executor3 netlink: 'syz-executor2': attribute type 3 has an invalid length. encrypted_key: master key parameter '' is invalid netlink: 'syz-executor2': attribute type 3 has an invalid length. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=5460 comm=syz-executor3 encrypted_key: master key parameter '' is invalid pit: kvm: requested 5866 ns i8254 timer period limited to 500000 ns QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl sctp: [Deprecated]: syz-executor3 (pid 5648) Use of int in maxseg socket option. Use struct sctp_assoc_value instead QAT: Invalid ioctl device eql entered promiscuous mode QAT: Invalid ioctl netlink: 72 bytes leftover after parsing attributes in process `syz-executor3'. device gre0 entered promiscuous mode raw_sendmsg: syz-executor2 forgot to set AF_INET. Fix it! netlink: 72 bytes leftover after parsing attributes in process `syz-executor3'. kauditd_printk_skb: 129 callbacks suppressed audit: type=1326 audit(1514912974.011:240): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.047:241): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=61 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.047:242): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.047:243): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.074:244): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.074:245): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.074:246): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.081:247): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=9 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.081:248): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 audit: type=1326 audit(1514912974.081:249): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5811 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452ac9 code=0x7ffc0000 binder: 5847:5849 ioctl c018620b 202dd000 returned -14 binder: 5847:5849 ERROR: BC_REGISTER_LOOPER called without request binder: 5849 RLIMIT_NICE not set netlink: 'syz-executor4': attribute type 16 has an invalid length. netlink: 'syz-executor4': attribute type 16 has an invalid length. binder: 5847:5875 got reply transaction with no transaction stack binder: 5847:5875 transaction failed 29201/-71, size 0-0 line 2760 device syz5 entered promiscuous mode binder: 5847:5875 ioctl c018620b 202dd000 returned -14 binder: BINDER_SET_CONTEXT_MGR already set binder: 5847:5875 ioctl 40046207 0 returned -16 binder: 5847:5859 ERROR: BC_REGISTER_LOOPER called without request binder: 5859 RLIMIT_NICE not set binder: 5849 RLIMIT_NICE not set binder: release 5847:5849 transaction 10 in, still active binder: send failed reply for transaction 10 to 5847:5859 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 device syz6 entered promiscuous mode netlink: 'syz-executor0': attribute type 16 has an invalid length. device gre0 entered promiscuous mode encrypted_key: insufficient parameters specified capability: warning: `syz-executor4' uses deprecated v2 capabilities in a way that may be insecure encrypted_key: insufficient parameters specified device syz2 entered promiscuous mode ptrace attach of "/root/syz-executor4"[3697] was attempted by "/root/syz-executor4"[6292] ptrace attach of "/root/syz-executor4"[3697] was attempted by "/root/syz-executor4"[6304] netlink: 9 bytes leftover after parsing attributes in process `syz-executor7'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. netlink: 9 bytes leftover after parsing attributes in process `syz-executor7'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. device gre0 entered promiscuous mode sctp: [Deprecated]: syz-executor1 (pid 6595) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor1 (pid 6604) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. binder: 6920 RLIMIT_NICE not set binder: 6919:6920 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 6919:6925 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 6925 RLIMIT_NICE not set binder: 6919:6926 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: undelivered death notification, 0000000000000000 netlink: 14 bytes leftover after parsing attributes in process `syz-executor2'. device eql entered promiscuous mode device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=7032 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256 sclass=netlink_route_socket pig=7041 comm=syz-executor5 device syz7 entered promiscuous mode handle_userfault: 31 callbacks suppressed FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7055 Comm: syz-executor2 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 handle_userfault+0x744/0x1750 fs/userfaultfd.c:430 do_anonymous_page mm/memory.c:3171 [inline] handle_pte_fault mm/memory.c:3945 [inline] __handle_mm_fault+0x2fc5/0x3210 mm/memory.c:4071 handle_mm_fault+0x305/0x840 mm/memory.c:4108 __do_page_fault+0x59e/0xca0 arch/x86/mm/fault.c:1429 do_page_fault+0x78/0x490 arch/x86/mm/fault.c:1504 page_fault+0x2c/0x60 arch/x86/entry/entry_64.S:1243 RIP: 0010:fault_in_pages_readable include/linux/pagemap.h:601 [inline] RIP: 0010:iov_iter_fault_in_readable+0x1a7/0x410 lib/iov_iter.c:421 RSP: 0018:ffff8801bb61fa08 EFLAGS: 00010246 RAX: 0000000000010000 RBX: 0000000020011fd2 RCX: ffffffff821c64c1 RDX: 000000000000010c RSI: ffffc90002991000 RDI: ffff8801bb61fd30 RBP: ffff8801bb61fae8 R08: 0000000000000000 R09: 0000000000000003 R10: ffff8801bb61f978 R11: 0000000000000001 R12: 1ffff100376c3f44 R13: ffff8801bb61fac0 R14: 0000000000000000 R15: ffff8801bb61fd28 generic_perform_write+0x195/0x4a0 mm/filemap.c:3128 __generic_file_write_iter+0x366/0x5b0 mm/filemap.c:3263 generic_file_write_iter+0x2f0/0x630 mm/filemap.c:3291 call_write_iter include/linux/fs.h:1775 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x550/0x740 fs/read_write.c:482 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xd4/0x1a0 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007f571566dc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9 RDX: 000000000000001c RSI: 0000000020011fd2 RDI: 0000000000000016 RBP: 00000000000000aa R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ef090 R13: 00000000ffffffff R14: 00007f571566e6d4 R15: 0000000000000000 sock: process `syz-executor3' is using obsolete getsockopt SO_BSDCOMPAT netlink: 9 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 9 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor3'. kvm [7169]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 kvm [7169]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7187 Comm: syz-executor5 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 handle_userfault+0x744/0x1750 fs/userfaultfd.c:430 do_anonymous_page mm/memory.c:3171 [inline] handle_pte_fault mm/memory.c:3945 [inline] __handle_mm_fault+0x2fc5/0x3210 mm/memory.c:4071 handle_mm_fault+0x305/0x840 mm/memory.c:4108 __do_page_fault+0x59e/0xca0 arch/x86/mm/fault.c:1429 do_page_fault+0x78/0x490 arch/x86/mm/fault.c:1504 page_fault+0x2c/0x60 arch/x86/entry/entry_64.S:1243 RIP: 0010:fault_in_pages_readable include/linux/pagemap.h:601 [inline] RIP: 0010:iov_iter_fault_in_readable+0x1a7/0x410 lib/iov_iter.c:421 RSP: 0018:ffff8801a7497a08 EFLAGS: 00010246 RAX: 0000000000010000 RBX: 0000000020011fd2 RCX: ffffffff821c64c1 RDX: 000000000000010c RSI: ffffc900035a9000 RDI: ffff8801a7497d30 RBP: ffff8801a7497ae8 R08: 0000000000000000 R09: 0000000000000003 R10: ffff8801a7497978 R11: 0000000000000001 R12: 1ffff10034e92f44 R13: ffff8801a7497ac0 R14: 0000000000000000 R15: ffff8801a7497d28 generic_perform_write+0x195/0x4a0 mm/filemap.c:3128 __generic_file_write_iter+0x366/0x5b0 mm/filemap.c:3263 generic_file_write_iter+0x2f0/0x630 mm/filemap.c:3291 call_write_iter include/linux/fs.h:1775 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x550/0x740 fs/read_write.c:482 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xd4/0x1a0 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007f9d32cebc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9 RDX: 000000000000001c RSI: 0000000020011fd2 RDI: 0000000000000015 RBP: 0000000000000059 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee8f8 R13: 00000000ffffffff R14: 00007f9d32cec6d4 R15: 0000000000000000 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7187 Comm: syz-executor5 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 handle_userfault+0x744/0x1750 fs/userfaultfd.c:430