====================================================== WARNING: possible circular locking dependency detected 4.13.0-rc6-next-20170825+ #9 Not tainted ------------------------------------------------------ syz-executor7/3283 is trying to acquire lock: (cpu_hotplug_lock.rw_sem){++++}, at: [] get_online_cpus include/linux/cpu.h:126 [inline] (cpu_hotplug_lock.rw_sem){++++}, at: [] flush_all_backlogs net/core/dev.c:4592 [inline] (cpu_hotplug_lock.rw_sem){++++}, at: [] rollback_registered_many+0x587/0xe80 net/core/dev.c:7127 but task is already holding lock: (rtnl_mutex){+.+.}, at: [] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (rtnl_mutex){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1870 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72 addrconf_dad_work+0xbb/0xfc0 net/ipv6/addrconf.c:3890 process_one_work+0xbfd/0x1be0 kernel/workqueue.c:2098 worker_thread+0x223/0x1860 kernel/workqueue.c:2233 kthread+0x39c/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 -> #2 ((&(&ifa->dad_work)->work)){+.+.}: process_one_work+0xba5/0x1be0 kernel/workqueue.c:2095 worker_thread+0x223/0x1860 kernel/workqueue.c:2233 kthread+0x39c/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 0xffffffffffffffff -> #1 ((complete)&rcu.completion){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 complete_acquire include/linux/completion.h:39 [inline] __wait_for_common kernel/sched/completion.c:108 [inline] wait_for_common kernel/sched/completion.c:122 [inline] wait_for_completion+0xc8/0x770 kernel/sched/completion.c:143 __synchronize_srcu+0x1b5/0x250 kernel/rcu/srcutree.c:898 synchronize_srcu_expedited kernel/rcu/srcutree.c:923 [inline] synchronize_srcu+0x1a3/0x560 kernel/rcu/srcutree.c:974 quarantine_remove_cache+0xd7/0xf0 mm/kasan/quarantine.c:327 kasan_cache_shrink+0x9/0x10 mm/kasan/kasan.c:380 kmem_cache_shrink+0x15/0x30 mm/slab_common.c:857 acpi_os_purge_cache+0x15/0x20 drivers/acpi/osl.c:1560 acpi_purge_cached_objects+0x38/0xc9 drivers/acpi/acpica/utxface.c:271 acpi_initialize_objects+0xc5/0x112 drivers/acpi/acpica/utxfinit.c:302 acpi_bus_init drivers/acpi/bus.c:1131 [inline] acpi_init+0x23c/0x8e6 drivers/acpi/bus.c:1220 do_one_initcall+0x9e/0x330 init/main.c:826 do_initcall_level init/main.c:892 [inline] do_initcalls init/main.c:900 [inline] do_basic_setup init/main.c:918 [inline] kernel_init_freeable+0x469/0x521 init/main.c:1066 kernel_init+0x13/0x172 init/main.c:993 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 -> #0 (cpu_hotplug_lock.rw_sem){++++}: check_prev_add+0x865/0x1520 kernel/locking/lockdep.c:1894 check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:35 [inline] percpu_down_read include/linux/percpu-rwsem.h:58 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:218 get_online_cpus include/linux/cpu.h:126 [inline] flush_all_backlogs net/core/dev.c:4592 [inline] rollback_registered_many+0x587/0xe80 net/core/dev.c:7127 rollback_registered+0x1be/0x3c0 net/core/dev.c:7183 unregister_netdevice_queue+0x2e3/0x5d0 net/core/dev.c:8171 unregister_netdevice include/linux/netdevice.h:2428 [inline] __tun_detach+0x1020/0x1390 drivers/net/tun.c:576 tun_detach drivers/net/tun.c:587 [inline] tun_chr_close+0x44/0x60 drivers/net/tun.c:2595 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:246 task_work_run+0x199/0x270 kernel/task_work.c:112 exit_task_work include/linux/task_work.h:21 [inline] do_exit+0xa52/0x1b40 kernel/exit.c:865 do_group_exit+0x149/0x400 kernel/exit.c:968 get_signal+0x7e8/0x17e0 kernel/signal.c:2334 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808 exit_to_usermode_loop+0x224/0x300 arch/x86/entry/common.c:158 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath+0x42f/0x500 arch/x86/entry/common.c:266 entry_SYSCALL_64_fastpath+0xbc/0xbe other info that might help us debug this: Chain exists of: cpu_hotplug_lock.rw_sem --> (&(&ifa->dad_work)->work) --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock((&(&ifa->dad_work)->work)); lock(rtnl_mutex); lock(cpu_hotplug_lock.rw_sem); *** DEADLOCK *** 1 lock held by syz-executor7/3283: #0: (rtnl_mutex){+.+.}, at: [] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72 stack backtrace: CPU: 0 PID: 3283 Comm: syz-executor7 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 print_circular_bug+0x503/0x710 kernel/locking/lockdep.c:1259 check_prev_add+0x865/0x1520 kernel/locking/lockdep.c:1894 check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:35 [inline] percpu_down_read include/linux/percpu-rwsem.h:58 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:218 get_online_cpus include/linux/cpu.h:126 [inline] flush_all_backlogs net/core/dev.c:4592 [inline] rollback_registered_many+0x587/0xe80 net/core/dev.c:7127 rollback_registered+0x1be/0x3c0 net/core/dev.c:7183 unregister_netdevice_queue+0x2e3/0x5d0 net/core/dev.c:8171 unregister_netdevice include/linux/netdevice.h:2428 [inline] __tun_detach+0x1020/0x1390 drivers/net/tun.c:576 tun_detach drivers/net/tun.c:587 [inline] tun_chr_close+0x44/0x60 drivers/net/tun.c:2595 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:246 task_work_run+0x199/0x270 kernel/task_work.c:112 exit_task_work include/linux/task_work.h:21 [inline] do_exit+0xa52/0x1b40 kernel/exit.c:865 do_group_exit+0x149/0x400 kernel/exit.c:968 get_signal+0x7e8/0x17e0 kernel/signal.c:2334 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808 exit_to_usermode_loop+0x224/0x300 arch/x86/entry/common.c:158 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath+0x42f/0x500 arch/x86/entry/common.c:266 entry_SYSCALL_64_fastpath+0xbc/0xbe RIP: 0033:0x446749 RSP: 002b:00007fdc6d10fc08 EFLAGS: 00000292 ORIG_RAX: 0000000000000055 RAX: fffffffffffffe00 RBX: 0000000020030ffa RCX: 0000000000446749 RDX: 0000000000000000 RSI: 0000000000000904 RDI: 0000000020030ffa RBP: 0000000000708000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 00000000ffffffff R13: 00000000000004b0 R14: 00000000006e2570 R15: 0000000000000904 do_dccp_setsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app do_dccp_setsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app sctp: [Deprecated]: syz-executor6 (pid 3378) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor6 (pid 3378) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead raw_sendmsg: syz-executor2 forgot to set AF_INET. Fix it! QAT: Invalid ioctl netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. QAT: Invalid ioctl netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. SELinux: failure in selinux_parse_skb(), unable to parse packet syz-executor2 uses obsolete (PF_INET,SOCK_PACKET) kvm [3573]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x400 capability: warning: `syz-executor7' uses 32-bit capabilities (legacy support in use) *** Guest State *** CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7 CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 CR3 = 0x00000000fffbc000 RSP = 0x0000000000000000 RIP = 0x000000000000fff0 RFLAGS=0x00000000 DR7 = 0x0000000000000400 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000 DS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 SS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 ES: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 FS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GDTR: limit=0x0000ffff, base=0x0000000000000000 LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000 IDTR: limit=0x0000ffff, base=0x0000000000000000 TR: sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 BndCfgS = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** RIP = 0xffffffff811b8fd7 RSP = 0xffff88006c94f4c8 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f527e984700 GSBase=ffff88003ed00000 TRBase=ffff88003ed23100 GDTBase=ffffffffff576000 IDTBase=ffffffffff57b000 CR0=0000000080050033 CR3=000000005303a000 CR4=00000000000026e0 Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70 EFER = 0x0000000000000d01 PAT = 0x0007040600070406 *** Control State *** PinBased=0000003f CPUBased=b6a1edfa SecondaryExec=000000e3 EntryControls=0001d1ff ExitControls=00afefff ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=80000301 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xffffffd58a561d42 TPR Threshold = 0x00 EPT pointer = 0x000000003de8601e Virtual processor ID = 0x0001 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=26 sclass=netlink_tcpdiag_socket pig=3750 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=26 sclass=netlink_tcpdiag_socket pig=3753 comm=syz-executor7 rfkill: input handler disabled rfkill: input handler enabled TCP: request_sock_TCP: Possible SYN flooding on port 20020. Sending cookies. Check SNMP counters. netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'. mmap: syz-executor6 (3805): VmData 31354880 exceed data ulimit 0. Update limits or use boot option ignore_rlimit_data. netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3886 comm=syz-executor1 device syz1 entered promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor1'. sr 1:0:0:0: [sg1] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK sr 1:0:0:0: [sg1] tag#0 CDB: Read density support 44 00 00 00 00 00 00 00 00 sr 1:0:0:0: [sg1] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK sr 1:0:0:0: [sg1] tag#0 CDB: Read density support 44 00 00 00 00 00 00 00 00 audit: type=1326 audit(1503691368.472:2): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4352 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000 audit: type=1326 audit(1503691368.543:3): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4352 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000 audit: type=1326 audit(1503691368.576:4): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4352 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000 audit: type=1326 audit(1503691368.611:5): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4352 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000 tc_dump_action: action bad kind *** Guest State *** CR0: actual=0x0000000000000029, shadow=0x0000000000000009, gh_mask=fffffffffffffff7 CR4: actual=0x0000000000012050, shadow=0x0000000000010000, gh_mask=ffffffffffffe871 CR3 = 0x00000000fffbc000 RSP = 0x0000000000000f80 RIP = 0x0000000000000000 RFLAGS=0x00000002 DR7 = 0x0000000000000400 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0x0010, attr=0x0009b, limit=0x000fffff, base=0x0000000000000000 DS: sel=0x0018, attr=0x00093, limit=0x000fffff, base=0x0000000000000000 SS: sel=0x0018, attr=0x00093, limit=0x000fffff, base=0x0000000000000000 tc_dump_action: action bad kind ES: sel=0x0018, attr=0x00093, limit=0x000fffff, base=0x0000000000000000 FS: sel=0x0018, attr=0x00093, limit=0x000fffff, base=0x0000000000000000 GS: sel=0x0018, attr=0x00093, limit=0x000fffff, base=0x0000000000000000 GDTR: limit=0x000007ff, base=0x0000000000001000 LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800 IDTR: limit=0x0000f000, base=0x0000000000010000 TR: sel=0x000c, attr=0x10000, limit=0x00010000, base=0x0000000000000002 EFER = 0x0000000000000400 PAT = 0x0007040600070406 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 BndCfgS = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** RIP = 0xffffffff811b8fd7 RSP = 0xffff88005307f4c8 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f4a2a4c2700 GSBase=ffff88003ec00000 TRBase=ffff88006df23100 GDTBase=ffffffffff574000 IDTBase=ffffffffff57b000 CR0=0000000080050033 CR3=000000003c75a000 CR4=00000000000026f0 Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70 EFER = 0x0000000000000d01 PAT = 0x0007040600070406 *** Control State *** PinBased=0000003f CPUBased=b6a1edfa SecondaryExec=000000e3 EntryControls=0001d3ff ExitControls=00afefff SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=4523 comm=syz-executor3 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=80000001 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xffffffd310cb6d9a TPR Threshold = 0x00 EPT pointer = 0x000000003ca7201e Virtual processor ID = 0x0001 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=4530 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=4744 comm=syz-executor2 sock: sock_set_timeout: `syz-executor0' (pid 4780) tries to set negative timeout syz-executor0: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor0 cpuset=/ mems_allowed=0-1 CPU: 1 PID: 4780 Comm: syz-executor0 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781 __vmalloc_node mm/vmalloc.c:1810 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:529 [inline] kvmalloc_array include/linux/mm.h:545 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline] do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970 SYSC_setsockopt net/socket.c:1852 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1831 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x446749 RSP: 002b:00007fe71f200c08 EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 0000000000446749 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000018 RBP: 0000000000000000 R08: 0000000000000056 R09: 0000000000000000 R10: 0000000020006000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe71f2019c0 R15: 00007fe71f201700 Mem-Info: active_anon:100198 inactive_anon:42 isolated_anon:0 active_file:3442 inactive_file:4641 isolated_file:0 unevictable:0 dirty:100 writeback:0 unstable:0 slab_reclaimable:5186 slab_unreclaimable:34680 mapped:20844 shmem:50 pagetables:853 bounce:0 free:244591 free_pcp:1112 free_cma:0 Node 0 active_anon:152164kB inactive_anon:72kB active_file:6720kB inactive_file:14460kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56292kB dirty:160kB writeback:0kB shmem:88kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 24576kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:248628kB inactive_anon:96kB active_file:7048kB inactive_file:4104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27084kB dirty:240kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 51200kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:640kB low:800kB high:960kB 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[]: 0 886 886 886 Node 0 DMA32 free:586028kB min:36536kB low:45668kB high:54800kB active_anon:152164kB inactive_anon:72kB active_file:6720kB inactive_file:14460kB unevictable:0kB writepending:160kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:3392kB pagetables:1744kB bounce:0kB free_pcp:2412kB local_pcp:468kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 DMA32 free:376428kB min:30404kB low:38004kB high:45604kB active_anon:248628kB inactive_anon:96kB active_file:7048kB inactive_file:4104kB unevictable:0kB writepending:240kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1984kB pagetables:1668kB bounce:0kB free_pcp:2036kB local_pcp:728kB 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: 371*4kB (UM) 2051*8kB (UME) 1710*16kB (UME) 949*32kB (UM) 433*64kB (UM) 83*128kB (UME) 14*256kB (UE) 11*512kB (UME) 6*1024kB (UE) 1*2048kB (U) 111*4096kB (M) = 586020kB Node 1 DMA32: 11*4kB (UME) 10*8kB (UME) 691*16kB (ME) 628*32kB (UME) 381*64kB (UME) 58*128kB (UM) 6*256kB (UME) 11*512kB (U) 5*1024kB (UME) 5*2048kB (UM) 71*4096kB (UM) = 376428kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 8132 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524186 pages RAM 0 pages HighMem/MovableOnly 103968 pages reserved sock: sock_set_timeout: `syz-executor0' (pid 4790) tries to set negative timeout syz-executor0: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor0 cpuset=/ mems_allowed=0-1 CPU: 2 PID: 4790 Comm: syz-executor0 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781 __vmalloc_node mm/vmalloc.c:1810 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:529 [inline] kvmalloc_array include/linux/mm.h:545 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline] do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970 SYSC_setsockopt net/socket.c:1852 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1831 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x446749 RSP: 002b:00007fe71f1dfc08 EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 0000000000446749 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000018 RBP: 0000000000a5f870 R08: 0000000000000056 R09: 0000000000000000 R10: 0000000020006000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe71f1e09c0 R15: 00007fe71f1e0700 pit: kvm: requested 2514 ns i8254 timer period limited to 500000 ns sctp: [Deprecated]: syz-executor7 (pid 4817) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Invalid ioctl QAT: Invalid ioctl pit: kvm: requested 2514 ns i8254 timer period limited to 500000 ns sctp: [Deprecated]: syz-executor7 (pid 4821) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Invalid ioctl QAT: Invalid ioctl nla_parse: 18 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. IPv6: NLM_F_REPLACE set, but no existing node found! netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. IPv6: NLM_F_REPLACE set, but no existing node found! sg_write: data in/out 1507300/8 bytes for SCSI command 0x0-- guessing data in; program syz-executor3 not setting count and/or reply_len properly QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl kvm: MONITOR instruction emulated as NOP! device lo entered promiscuous mode sctp: [Deprecated]: syz-executor3 (pid 5063) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead netlink: 64 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 64 bytes leftover after parsing attributes in process `syz-executor1'. sctp: [Deprecated]: syz-executor3 (pid 5100) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. mmap: syz-executor0 (5148) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. sctp: [Deprecated]: syz-executor5 (pid 5254) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. sock: sock_set_timeout: `syz-executor5' (pid 5284) tries to set negative timeout netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. syz-executor5: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor5 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 5284 Comm: syz-executor5 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781 __vmalloc_node mm/vmalloc.c:1810 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:529 [inline] kvmalloc_array include/linux/mm.h:545 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline] do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970 SYSC_setsockopt net/socket.c:1852 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1831 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x446749 RSP: 002b:00007f6b09f84c08 EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 0000000000446749 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000018 RBP: 0000000000708000 R08: 0000000000000056 R09: 0000000000000000 R10: 0000000020006000 R11: 0000000000000296 R12: 00000000ffffffff R13: 0000000000005e90 R14: 00000000006e7f50 R15: 000000002090f000 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:97897 inactive_anon:42 isolated_anon:0 active_file:3470 inactive_file:4639 isolated_file:0 unevictable:0 dirty:93 writeback:0 unstable:0 slab_reclaimable:5319 slab_unreclaimable:36442 mapped:20857 shmem:50 pagetables:837 bounce:0 free:244926 free_pcp:1070 free_cma:0 Node 0 active_anon:131676kB inactive_anon:72kB active_file:6792kB inactive_file:14492kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56348kB dirty:128kB writeback:0kB shmem:88kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:259912kB inactive_anon:96kB active_file:7088kB inactive_file:4064kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27080kB dirty:244kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:640kB low:800kB high:960kB 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[]: 0 886 886 886 Node 0 DMA32 free:597396kB min:36536kB low:45668kB high:54800kB active_anon:131676kB inactive_anon:72kB active_file:6792kB inactive_file:14492kB unevictable:0kB writepending:128kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:3296kB pagetables:1664kB bounce:0kB free_pcp:2348kB local_pcp:468kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 DMA32 free:366400kB min:30404kB low:38004kB high:45604kB active_anon:259912kB inactive_anon:96kB active_file:7088kB inactive_file:4064kB unevictable:0kB writepending:244kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1920kB pagetables:1684kB bounce:0kB free_pcp:1932kB local_pcp:676kB 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: 367*4kB (U) 1441*8kB (UM) 1715*16kB (UME) 938*32kB (UME) 434*64kB (UM) 66*128kB (UM) 7*256kB (UE) 5*512kB (UME) 1*1024kB (E) 1*2048kB (U) 118*4096kB (UM) = 597428kB Node 1 DMA32: 54*4kB (UME) 8*8kB (UME) 520*16kB (UME) 772*32kB (UME) 441*64kB (UM) 78*128kB (UME) 28*256kB (UM) 8*512kB (U) 5*1024kB (UME) 0*2048kB 68*4096kB (M) = 366424kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 8158 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524186 pages RAM 0 pages HighMem/MovableOnly 103968 pages reserved sock: sock_set_timeout: `syz-executor5' (pid 5311) tries to set negative timeout syz-executor5: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor5 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 5311 Comm: syz-executor5 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781 __vmalloc_node mm/vmalloc.c:1810 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:529 [inline] kvmalloc_array include/linux/mm.h:545 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline] do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970 SYSC_setsockopt net/socket.c:1852 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1831 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x446749 RSP: 002b:00007f6b09f42c08 EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 0000000000446749 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000020 RBP: 0000000000708150 R08: 0000000000000056 R09: 0000000000000000 R10: 0000000020006000 R11: 0000000000000296 R12: 00000000ffffffff R13: 0000000000005e90 R14: 00000000006e7f50 R15: 000000002090f000 TCP: request_sock_TCP: Possible SYN flooding on port 20020. Sending cookies. Check SNMP counters. QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl kvm [5494]: vcpu0, guest rIP: 0x0 disabled perfctr wrmsr: 0xc1 data 0x8000 kvm [5494]: vcpu0, guest rIP: 0x0 disabled perfctr wrmsr: 0xc1 data 0x8000 device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. tmpfs: Bad mount option q]g4G tmpfs: Bad mount option q]g4G capability: warning: `syz-executor3' uses deprecated v2 capabilities in a way that may be insecure audit: type=1326 audit(1503691373.862:6): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5800 comm="syz-executor0" exe="/syz-executor0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000 audit: type=1326 audit(1503691373.942:7): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5800 comm="syz-executor0" exe="/syz-executor0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000