====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc2+ #215 Not tainted ------------------------------------------------------ syz-executor4/9568 is trying to acquire lock: (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000b8f17bcc>] get_online_cpus include/linux/cpu.h:117 [inline] (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000b8f17bcc>] lru_add_drain_all+0xe/0x20 mm/swap.c:729 but task is already holding lock: (&sb->s_type->i_mutex_key#10){++++}, at: [<000000009e3b62eb>] inode_lock include/linux/fs.h:713 [inline] (&sb->s_type->i_mutex_key#10){++++}, at: [<000000009e3b62eb>] shmem_add_seals+0x197/0x1060 mm/shmem.c:2768 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&sb->s_type->i_mutex_key#10){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 down_write+0x87/0x120 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:713 [inline] generic_file_write_iter+0xdc/0x7a0 mm/filemap.c:3289 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x531/0x7f0 fs/read_write.c:653 do_iter_write+0x15a/0x540 fs/read_write.c:932 vfs_iter_write+0x77/0xb0 fs/read_write.c:945 iter_file_splice_write+0x7db/0xf30 fs/splice.c:749 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x7d5/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #5 (&pipe->mutex/1){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 pipe_lock_nested fs/pipe.c:67 [inline] pipe_lock+0x56/0x70 fs/pipe.c:75 iter_file_splice_write+0x264/0xf30 fs/splice.c:699 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x7d5/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #4 (sb_writers){.+.+}: spin_lock include/linux/spinlock.h:315 [inline] _atomic_dec_and_lock+0x125/0x196 lib/dec_and_lock.c:28 iput+0x13a/0xaf0 fs/inode.c:1533 bdput fs/block_dev.c:923 [inline] bd_forget+0xf0/0x1a0 fs/block_dev.c:983 evict+0x64f/0x920 fs/inode.c:559 iput_final fs/inode.c:1515 [inline] iput+0x7b9/0xaf0 fs/inode.c:1542 -> #3 ((completion)&req.done){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 complete_acquire include/linux/completion.h:40 [inline] __wait_for_common kernel/sched/completion.c:109 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0xcb/0x7b0 kernel/sched/completion.c:144 devtmpfs_create_node+0x32b/0x4a0 drivers/base/devtmpfs.c:115 device_add+0x120f/0x1640 drivers/base/core.c:1824 device_create_groups_vargs+0x1f3/0x250 drivers/base/core.c:2430 device_create_vargs drivers/base/core.c:2470 [inline] device_create+0xda/0x110 drivers/base/core.c:2506 msr_device_create+0x26/0x40 arch/x86/kernel/msr.c:188 cpuhp_invoke_callback+0x2ea/0x1d20 kernel/cpu.c:182 cpuhp_thread_fun+0x48e/0x7e0 kernel/cpu.c:571 smpboot_thread_fn+0x450/0x7c0 kernel/smpboot.c:164 kthread+0x37a/0x440 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 -> #2 (cpuhp_state-up){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 cpuhp_lock_acquire kernel/cpu.c:85 [inline] cpuhp_invoke_ap_callback kernel/cpu.c:605 [inline] cpuhp_issue_call+0x1e5/0x520 kernel/cpu.c:1495 __cpuhp_setup_state_cpuslocked+0x282/0x600 kernel/cpu.c:1642 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state include/linux/cpuhotplug.h:201 [inline] page_writeback_init+0x4d/0x71 mm/page-writeback.c:2081 pagecache_init+0x48/0x4f mm/filemap.c:977 start_kernel+0x6bc/0x74f init/main.c:690 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #1 (cpuhp_state_mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 __cpuhp_setup_state_cpuslocked+0x5b/0x600 kernel/cpu.c:1617 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state_nocalls include/linux/cpuhotplug.h:229 [inline] kvm_guest_init+0x1f3/0x20f arch/x86/kernel/kvm.c:528 setup_arch+0x17e8/0x1a02 arch/x86/kernel/setup.c:1266 start_kernel+0xa5/0x74f init/main.c:530 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #0 (cpu_hotplug_lock.rw_sem){++++}: check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:293 get_online_cpus include/linux/cpu.h:117 [inline] lru_add_drain_all+0xe/0x20 mm/swap.c:729 shmem_wait_for_pins mm/shmem.c:2672 [inline] shmem_add_seals+0x3df/0x1060 mm/shmem.c:2780 shmem_fcntl+0xfe/0x130 mm/shmem.c:2815 do_fcntl+0x73e/0x1160 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xdc/0x120 fs/fcntl.c:448 entry_SYSCALL_64_fastpath+0x1f/0x96 other info that might help us debug this: Chain exists of: cpu_hotplug_lock.rw_sem --> &pipe->mutex/1 --> &sb->s_type->i_mutex_key#10 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#10); lock(&pipe->mutex/1); lock(&sb->s_type->i_mutex_key#10); lock(cpu_hotplug_lock.rw_sem); *** DEADLOCK *** 1 lock held by syz-executor4/9568: #0: (&sb->s_type->i_mutex_key#10){++++}, at: [<000000009e3b62eb>] inode_lock include/linux/fs.h:713 [inline] #0: (&sb->s_type->i_mutex_key#10){++++}, at: [<000000009e3b62eb>] shmem_add_seals+0x197/0x1060 mm/shmem.c:2768 stack backtrace: CPU: 0 PID: 9568 Comm: syz-executor4 Not tainted 4.15.0-rc2+ #215 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+0x194/0x257 lib/dump_stack.c:53 print_circular_bug+0x42d/0x610 kernel/locking/lockdep.c:1271 check_prev_add+0x666/0x15f0 kernel/locking/lockdep.c:1914 check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:293 get_online_cpus include/linux/cpu.h:117 [inline] lru_add_drain_all+0xe/0x20 mm/swap.c:729 shmem_wait_for_pins mm/shmem.c:2672 [inline] shmem_add_seals+0x3df/0x1060 mm/shmem.c:2780 shmem_fcntl+0xfe/0x130 mm/shmem.c:2815 do_fcntl+0x73e/0x1160 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xdc/0x120 fs/fcntl.c:448 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f7ad6250c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 000000000000000c RSI: 0000000000000409 RDI: 0000000000000015 RBP: 0000000000000390 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3620 R13: 00000000ffffffff R14: 00007f7ad62516d4 R15: 0000000000000000 netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. binder: 9603:9612 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 netlink: 11 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 109 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 109 bytes leftover after parsing attributes in process `syz-executor2'. binder: 9644:9652 got transaction to invalid handle binder: 9644:9652 transaction failed 29201/-22, size 48-8 line 2775 binder: BINDER_SET_CONTEXT_MGR already set binder: 9644:9667 ioctl 40046207 0 returned -16 binder: 9644:9667 got transaction with invalid offsets ptr binder: 9644:9667 transaction failed 29201/-14, size 0-22 line 2918 QAT: Invalid ioctl QAT: Invalid ioctl binder_alloc: binder_alloc_mmap_handler: 9644 20005000-20009000 already mapped failed -16 binder_alloc: binder_alloc_mmap_handler: 9644 2055a000-2055c000 already mapped failed -16 kvm [9658]: vcpu0, guest rIP: 0x9115 Hyper-V uhandled wrmsr: 0x4000008f data 0xe0040037 QAT: Invalid ioctl binder: BINDER_SET_CONTEXT_MGR already set binder: 9644:9673 ioctl 40046207 0 returned -16 binder_alloc: 9644: binder_alloc_buf, no vma binder: 9644:9667 transaction failed 29189/-3, size 0-0 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 9644:9673 ioctl 40046207 0 returned -16 binder_alloc: 9644: binder_alloc_buf, no vma binder: 9644:9685 transaction failed 29189/-3, size 0-28 line 2890 binder_alloc: binder_alloc_mmap_handler: 9644 20005000-20009000 already mapped failed -16 binder_alloc: binder_alloc_mmap_handler: 9644 2055a000-2055c000 already mapped failed -16 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: send failed reply for transaction 80 to 9644:9652 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 sock: process `syz-executor3' is using obsolete setsockopt SO_BSDCOMPAT device gre0 entered promiscuous mode binder: 9731:9740 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9740 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9740 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 9731:9758 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9758 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 9731:9758 Release 1 refcount change on invalid ref 0 ret -22 binder: 9731:9758 got reply transaction with no transaction stack binder: 9731:9758 transaction failed 29201/-71, size 0-16 line 2690 binder: 9731:9758 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9740 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9768 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 9731:9740 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 9731:9758 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 9731:9758 Release 1 refcount change on invalid ref 0 ret -22 binder: 9731:9758 got reply transaction with no transaction stack binder: 9731:9758 transaction failed 29201/-71, size 0-16 line 2690 audit: type=1400 audit(1512882545.856:856): avc: denied { prog_run } for pid=9767 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 audit: type=1400 audit(1512882545.878:857): avc: denied { map } for pid=9772 comm="syz-executor6" path="/dev/sg4" dev="devtmpfs" ino=27845 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:device_t:s0 tclass=file permissive=1 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 netlink: 'syz-executor4': attribute type 1 has an invalid length. audit: type=1400 audit(1512882546.094:858): avc: denied { map } for pid=9818 comm="syz-executor0" path="/dev/ptmx" dev="devtmpfs" ino=1103 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:ptmx_t:s0 tclass=chr_file permissive=1 netlink: 'syz-executor4': attribute type 1 has an invalid length. device gre0 entered promiscuous mode IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! Scheduler tracepoints stat_sleep, stat_iowait, stat_blocked and stat_runtime require the kernel parameter schedstats=enable or kernel.sched_schedstats=1 sctp: [Deprecated]: syz-executor7 (pid 10078) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead binder_alloc: 10061: binder_alloc_buf, no vma binder: 10061:10069 transaction failed 29189/-3, size 64-48 line 2890 sctp: [Deprecated]: syz-executor7 (pid 10109) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead binder: BINDER_SET_CONTEXT_MGR already set binder: 10061:10110 ioctl 40046207 0 returned -16 binder_alloc: 10061: binder_alloc_buf, no vma binder: 10061:10069 transaction failed 29189/-3, size 64-48 line 2890 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=1025 sclass=netlink_tcpdiag_socket pig=10344 comm=syz-executor0 QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=4 nlmsg_type=1025 sclass=netlink_tcpdiag_socket pig=10355 comm=syz-executor0 device syz7 entered promiscuous mode audit: type=1400 audit(1512882548.174:859): avc: denied { map } for pid=10382 comm="syz-executor3" path="/dev/kvm" dev="devtmpfs" ino=1090 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:kvm_device_t:s0 tclass=chr_file permissive=1 nla_parse: 8 callbacks suppressed netlink: 2 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor1'. device lo entered promiscuous mode device lo left promiscuous mode netlink: 'syz-executor0': attribute type 28 has an invalid length. netlink: 13 bytes leftover after parsing attributes in process `syz-executor0'. device lo entered promiscuous mode device lo left promiscuous mode netlink: 'syz-executor0': attribute type 28 has an invalid length. netlink: 13 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 9 bytes leftover after parsing attributes in process `syz-executor0'. 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-executor0'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. QAT: Invalid ioctl QAT: Invalid ioctl device eql entered promiscuous mode device gre0 entered promiscuous mode binder: 10858:10861 got reply transaction with no transaction stack RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? binder: 10858:10861 transaction failed 29201/-71, size 32-8 line 2690 binder: 10858:10861 BC_DEAD_BINDER_DONE 0000000000000002 not found binder: 10861 RLIMIT_NICE not set binder: 10858:10873 ERROR: BC_REGISTER_LOOPER called without request SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59135 sclass=netlink_route_socket pig=10884 comm=syz-executor1 binder: 10858:10873 ioctl c0306201 20007000 returned -14 binder: 10861 RLIMIT_NICE not set SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59135 sclass=netlink_route_socket pig=10895 comm=syz-executor1 binder: BINDER_SET_CONTEXT_MGR already set binder: 10858:10873 ioctl 40046207 0 returned -16 binder: 10858:10861 BC_DEAD_BINDER_DONE 0000000000000002 not found binder: 10861 RLIMIT_NICE not set binder: 10858:10861 ERROR: BC_REGISTER_LOOPER called after BC_ENTER_LOOPER binder: 10858:10861 ioctl c0306201 20007000 returned -14 binder_alloc: 10858: binder_alloc_buf, no vma binder: 10858:10861 transaction failed 29189/-3, size 0-0 line 2890 RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? binder: undelivered TRANSACTION_ERROR: 29189 binder: release 10858:10861 transaction 93 in, still active binder: send failed reply for transaction 93 to 10858:10873 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. audit: type=1400 audit(1512882550.682:860): avc: denied { accept } for pid=10926 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. device lo entered promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 11012 Comm: syz-executor2 Not tainted 4.15.0-rc2+ #215 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+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3371 [inline] __do_kmalloc mm/slab.c:3709 [inline] __kmalloc+0x63/0x760 mm/slab.c:3720 kmalloc include/linux/slab.h:504 [inline] kzalloc include/linux/slab.h:688 [inline] bpf_test_init.isra.7+0x7c/0xe0 net/bpf/test_run.c:81 bpf_prog_test_run_skb+0xfb/0x990 net/bpf/test_run.c:103 bpf_prog_test_run kernel/bpf/syscall.c:1450 [inline] SYSC_bpf kernel/bpf/syscall.c:1743 [inline] SyS_bpf+0x1024/0x4410 kernel/bpf/syscall.c:1685 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007fc80d9a1c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fc80d9a1aa0 RCX: 0000000000452a39 RDX: 0000000000000028 RSI: 0000000020faf000 RDI: 000000000000000a RBP: 00007fc80d9a1a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007fc80d9a1bc8 R14: 00000000004b75fb R15: 0000000000000000 rfkill: input handler disabled rfkill: input handler enabled sctp: [Deprecated]: syz-executor1 (pid 11310) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 11326) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead device gre0 entered promiscuous mode binder: 11328:11334 IncRefs 0 refcount change on invalid ref 2 ret -22 binder: undelivered death notification, 0000000000000000 binder: 11328:11334 got reply transaction with no transaction stack binder: BINDER_SET_CONTEXT_MGR already set binder: 11338:11356 ioctl 40046207 0 returned -16 binder: undelivered death notification, 0000000000000000 binder: 11328:11334 transaction failed 29201/-71, size 48-56 line 2690 binder: 11328:11350 ERROR: BC_REGISTER_LOOPER called without request binder: 11328:11334 got transaction to invalid handle binder: 11328:11334 transaction failed 29201/-22, size 40-56 line 2775 binder: 11328:11350 IncRefs 0 refcount change on invalid ref 2 ret -22 binder: 11328:11350 got reply transaction with no transaction stack binder: BINDER_SET_CONTEXT_MGR already set binder: 11328:11334 ioctl 40046207 0 returned -16 binder: 11328:11334 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 11328: binder_alloc_buf, no vma binder: 11328:11385 transaction failed 29189/-3, size 0-0 line 2890 binder: 11328:11385 got transaction to invalid handle binder: 11328:11385 transaction failed 29201/-22, size 40-56 line 2775 audit: type=1400 audit(1512882552.514:861): avc: denied { write } for pid=11397 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 audit: type=1326 audit(1512882552.518:862): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11393 comm="syz-executor3" exe="/root/syz-executor3" sig=9 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x0 audit: type=1400 audit(1512882552.523:863): avc: denied { ioctl } for pid=11397 comm="syz-executor4" path="socket:[41342]" dev="sockfs" ino=41342 ioctlcmd=0x5878 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 binder: 11328:11350 transaction failed 29201/-71, size 48-56 line 2690 binder: undelivered TRANSACTION_ERROR: 29189 binder: send failed reply for transaction 100 to 11328:11350 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 audit: type=1326 audit(1512882552.720:864): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11393 comm="syz-executor3" exe="/root/syz-executor3" sig=9 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x0 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl device lo entered promiscuous mode netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. syz-executor0 (11555) used greatest stack depth: 14672 bytes left netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. device syz5 entered promiscuous mode binder: 11661:11665 BC_DEAD_BINDER_DONE fffffffffffffffd not found binder: 11661:11665 BC_ACQUIRE_DONE uffffffffffffffff no match binder: 11661:11665 ERROR: BC_REGISTER_LOOPER called without request binder: 11661:11665 IncRefs 0 refcount change on invalid ref 131 ret -22 binder: 11661:11665 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 11661:11665 unknown command 0 binder: BINDER_SET_CONTEXT_MGR already set binder: 11661:11686 ioctl 40046207 0 returned -16 binder: 11661:11686 ioctl 40046205 200000000003 returned -22 binder: 11661:11686 ioctl 40046205 a returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 11661:11686 ioctl 40046207 0 returned -16 binder: 11661:11665 ioctl c0306201 20000000 returned -22 binder_alloc: binder_alloc_mmap_handler: 11661 2011a000-2051a000 already mapped failed -16 binder: 11661:11686 BC_DEAD_BINDER_DONE fffffffffffffffd not found binder: 11661:11686 BC_ACQUIRE_DONE uffffffffffffffff no match binder: BINDER_SET_CONTEXT_MGR already set binder: 11661:11686 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 11661:11665 ioctl 40046207 0 returned -16 binder: 11661:11698 ioctl 40046205 a returned -22 binder: 11661:11665 ioctl 40046205 200000000003 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 11661:11665 ioctl 40046207 0 returned -16 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=82 sclass=netlink_xfrm_socket pig=11751 comm=syz-executor5 netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. SELinux: unrecognized netlink message: protocol=6 nlmsg_type=82 sclass=netlink_xfrm_socket pig=11751 comm=syz-executor5 netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. audit: type=1400 audit(1512882553.974:865): avc: denied { map } for pid=11752 comm="syz-executor4" path="/dev/snd/timer" dev="devtmpfs" ino=8897 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sound_device_t:s0 tclass=chr_file permissive=1