netlink: 7 bytes leftover after parsing attributes in process `syz-executor6'. PF_BRIDGE: br_mdb_parse() with unknown ifindex ====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc3+ #218 Not tainted ------------------------------------------------------ syz-executor1/19437 is trying to acquire lock: (event_mutex){+.+.}, at: [<00000000a0c84a7d>] perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 Bearer <> rejected, not supported in standalone mode but task is already holding lock: (&mm->mmap_sem){++++}, at: [<00000000c0a7ab2f>] vm_mmap_pgoff+0x198/0x280 mm/util.c:331 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #7 (&mm->mmap_sem){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __might_fault+0x13a/0x1d0 mm/memory.c:4528 _copy_to_user+0x2c/0xc0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] filldir+0x1a7/0x320 fs/readdir.c:196 dir_emit_dot include/linux/fs.h:3374 [inline] dir_emit_dots include/linux/fs.h:3385 [inline] dcache_readdir+0x12d/0x5e0 fs/libfs.c:192 iterate_dir+0x1ca/0x540 fs/readdir.c:51 SYSC_getdents fs/readdir.c:231 [inline] SyS_getdents+0x225/0x450 fs/readdir.c:212 entry_SYSCALL_64_fastpath+0x1f/0x96 device gre0 entered promiscuous mode -> #6 (&sb->s_type->i_mutex_key#5){++++}: spin_lock include/linux/spinlock.h:315 [inline] lockref_put_or_lock+0x19/0x80 lib/lockref.c:143 fast_dput fs/dcache.c:673 [inline] dput.part.23+0x474/0x830 fs/dcache.c:794 dput+0x1f/0x30 fs/dcache.c:787 filename_create+0x29a/0x520 fs/namei.c:3651 kern_path_create+0x33/0x40 fs/namei.c:3666 -> #5 ((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 -> #4 (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:695 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 -> #3 (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 -> #2 (cpu_hotplug_lock.rw_sem){++++}: 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 static_key_slow_inc+0x9d/0x3c0 kernel/jump_label.c:123 tracepoint_add_func kernel/tracepoint.c:223 [inline] tracepoint_probe_register_prio+0x80d/0x9a0 kernel/tracepoint.c:283 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:304 trace_event_reg+0x167/0x320 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x4ef/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:7956 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9182 perf_init_event kernel/events/core.c:9220 [inline] perf_event_alloc+0x1cc6/0x2b00 kernel/events/core.c:9484 SYSC_perf_event_open+0x842/0x2f10 kernel/events/core.c:9939 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9825 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #1 (tracepoints_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 tracepoint_probe_register_prio+0xa0/0x9a0 kernel/tracepoint.c:279 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:304 trace_event_reg+0x167/0x320 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x4ef/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:7956 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9182 perf_init_event kernel/events/core.c:9220 [inline] perf_event_alloc+0x1cc6/0x2b00 kernel/events/core.c:9484 SYSC_perf_event_open+0x842/0x2f10 kernel/events/core.c:9939 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9825 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #0 (event_mutex){+.+.}: 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 __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 perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 tp_perf_event_destroy+0x15/0x20 kernel/events/core.c:7940 _free_event+0x3bd/0x10f0 kernel/events/core.c:4104 put_event+0x24/0x30 kernel/events/core.c:4187 perf_mmap_close+0x60d/0x1010 kernel/events/core.c:5146 remove_vma+0xb4/0x1b0 mm/mmap.c:172 remove_vma_list mm/mmap.c:2490 [inline] do_munmap+0x82a/0xdf0 mm/mmap.c:2731 mmap_region+0x59e/0x15a0 mm/mmap.c:1646 do_mmap+0x6c6/0xe10 mm/mmap.c:1483 do_mmap_pgoff include/linux/mm.h:2217 [inline] vm_mmap_pgoff+0x1de/0x280 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1533 [inline] SyS_mmap_pgoff+0x23b/0x5f0 mm/mmap.c:1491 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 entry_SYSCALL_64_fastpath+0x1f/0x96 other info that might help us debug this: Chain exists of: event_mutex --> &sb->s_type->i_mutex_key#5 --> &mm->mmap_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&sb->s_type->i_mutex_key#5); lock(&mm->mmap_sem); lock(event_mutex); *** DEADLOCK *** 1 lock held by syz-executor1/19437: #0: (&mm->mmap_sem){++++}, at: [<00000000c0a7ab2f>] vm_mmap_pgoff+0x198/0x280 mm/util.c:331 stack backtrace: CPU: 1 PID: 19437 Comm: syz-executor1 Not tainted 4.15.0-rc3+ #218 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 __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 perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 tp_perf_event_destroy+0x15/0x20 kernel/events/core.c:7940 _free_event+0x3bd/0x10f0 kernel/events/core.c:4104 put_event+0x24/0x30 kernel/events/core.c:4187 perf_mmap_close+0x60d/0x1010 kernel/events/core.c:5146 remove_vma+0xb4/0x1b0 mm/mmap.c:172 remove_vma_list mm/mmap.c:2490 [inline] do_munmap+0x82a/0xdf0 mm/mmap.c:2731 mmap_region+0x59e/0x15a0 mm/mmap.c:1646 do_mmap+0x6c6/0xe10 mm/mmap.c:1483 do_mmap_pgoff include/linux/mm.h:2217 [inline] vm_mmap_pgoff+0x1de/0x280 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1533 [inline] SyS_mmap_pgoff+0x23b/0x5f0 mm/mmap.c:1491 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f169bacdc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: cccccccccccccccd RCX: 0000000000452a39 RDX: 0000000000000003 RSI: 0000000000292000 RDI: 0000000020000000 RBP: 00000000000005b0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000032 R11: 0000000000000212 R12: 00000000006f6920 R13: 00000000ffffffff R14: 00007f169bace6d4 R15: 0000000000000001 device eql entered promiscuous mode 9pnet_virtio: no channels available for device ./file1 9pnet_virtio: no channels available for device ./file1 netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. audit: type=1400 audit(1513069106.795:2087): avc: denied { ioctl } for pid=19589 comm="syz-executor2" path="socket:[68986]" dev="sockfs" ino=68986 ioctlcmd=0x8946 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1513069106.831:2088): avc: denied { setopt } for pid=19589 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=netlink_fib_lookup_socket permissive=1 QAT: Invalid ioctl QAT: Invalid ioctl netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl sctp: [Deprecated]: syz-executor7 (pid 19712) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor7 (pid 19712) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 13 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 13 bytes leftover after parsing attributes in process `syz-executor5'. QAT: Invalid ioctl device gre0 entered promiscuous mode QAT: Invalid ioctl netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. Bearer <> rejected, not supported in standalone mode Bearer <> rejected, not supported in standalone mode audit: type=1400 audit(1513069108.234:2089): avc: denied { map } for pid=19954 comm="syz-executor3" path="/dev/rfkill" dev="devtmpfs" ino=1042 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:wireless_device_t:s0 tclass=chr_file permissive=1 binder: 19960:19961 ioctl 40046205 0 returned -22 binder: 19960:19961 ERROR: BC_REGISTER_LOOPER called without request binder: 19961 RLIMIT_NICE not set binder: 19961 RLIMIT_NICE not set binder: 19960:19961 got transaction to invalid handle binder: 19960:19961 transaction failed 29201/-22, size 0-8 line 2775 binder: 19961 RLIMIT_NICE not set binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: 19960:19961 BC_FREE_BUFFER u0000000000000000 no match binder: invalid inc weak node for 136 binder: 19960:19961 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 19960:19961 got transaction with invalid data ptr binder: 19960:19961 transaction failed 29201/-14, size 72-8 line 2909 binder: 19960:19961 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 135, process died. binder: 19960:19961 ioctl 40046205 6 returned -22 binder: 19960:19970 ioctl 40046205 0 returned -22 binder: 19960:19970 ERROR: BC_REGISTER_LOOPER called without request binder: 19970 RLIMIT_NICE not set binder: 19960:19970 ioctl c0306201 20008fd0 returned -11 binder: 19960:19970 got transaction to invalid handle binder: 19960:19970 transaction failed 29201/-22, size 0-8 line 2775 binder: 19960:19970 got reply transaction with no transaction stack binder: 19960:19970 transaction failed 29201/-71, size 24-8 line 2690 binder: 19960:19970 BC_FREE_BUFFER u0000000000000000 no match binder: 19960:19970 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 19960:19970 got transaction to invalid handle binder: 19960:19970 transaction failed 29201/-22, size 72-8 line 2775 binder: 19960:19970 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 141 to 19960:19961 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 irq bypass consumer (token 00000000cd3b8ce5) registration fails: -16 binder: 20012:20014 ioctl 40046205 0 returned -22 binder: 20012:20014 ERROR: BC_REGISTER_LOOPER called without request binder: 20014 RLIMIT_NICE not set irq bypass consumer (token 00000000a0ae0a12) registration fails: -16 binder: 20014 RLIMIT_NICE not set binder: 20012:20014 got transaction to invalid handle binder: 20012:20014 transaction failed 29201/-22, size 0-8 line 2775 binder: 20014 RLIMIT_NICE not set binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: 20012:20014 BC_FREE_BUFFER u0000000000000000 no match binder: invalid inc weak node for 150 binder: 20012:20014 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 20012:20014 got transaction with invalid data ptr binder: 20012:20014 transaction failed 29201/-14, size 72-8 line 2909 binder: 20012:20014 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 149, process died. binder: 20012:20014 ioctl 40046205 6 returned -22 binder: 20012:20018 ioctl 40046205 0 returned -22 binder: 20012:20018 ERROR: BC_REGISTER_LOOPER called without request binder: 20018 RLIMIT_NICE not set binder: 20012:20018 ioctl c0306201 20008fd0 returned -11 binder: 20012:20018 got transaction to invalid handle binder: 20012:20018 transaction failed 29201/-22, size 0-8 line 2775 binder: 20012:20018 got reply transaction with no transaction stack binder: 20012:20018 transaction failed 29201/-71, size 24-8 line 2690 binder: 20012:20014 BC_FREE_BUFFER u0000000000000000 no match binder: 20012:20014 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 20012:20014 got transaction to invalid handle binder: 20012:20014 transaction failed 29201/-22, size 72-8 line 2775 binder: 20012:20014 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 155 to 20012:20014 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 nla_parse: 9 callbacks suppressed netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. audit: type=1326 audit(1513069109.688:2090): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.728:2091): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=206 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.791:2092): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.819:2093): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.822:2094): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=1 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.822:2095): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.822:2096): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=233 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.826:2097): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069109.827:2098): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20124 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=284 compat=0 ip=0x452a39 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl binder: 20361 RLIMIT_NICE not set binder: 20357:20361 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 20357:20361 Release 1 refcount change on invalid ref -2 ret -22 binder: 20357:20361 got reply transaction with no transaction stack binder: 20357:20361 transaction failed 29201/-71, size 0-16 line 2690 binder: 20357:20368 tried to acquire reference to desc 0, got 1 instead binder: 20357:20368 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20357:20361 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 20357:20376 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20357:20361 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 20357:20361 Release 1 refcount change on invalid ref -2 ret -22 binder: 20357:20361 got reply transaction with no transaction stack binder: 20357:20361 transaction failed 29201/-71, size 0-16 line 2690 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered death notification, 0000000000000000 binder: undelivered TRANSACTION_ERROR: 29201 9pnet_virtio: no channels available for device ./file1 binder: 20429:20431 DecRefs 0 refcount change on invalid ref 0 ret -22 9pnet_virtio: no channels available for device ./file1 binder: 20429:20431 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20429:20431 got transaction to invalid handle binder: 20429:20431 transaction failed 29201/-22, size 32-8 line 2775 binder: 20429:20431 ioctl 40046205 7f returned -22 binder: 20429:20431 BC_FREE_BUFFER u0000000020000000 matched unreturned buffer binder_alloc: 20429:20431 FREE_BUFFER u0000000020000000 user freed buffer twice binder: 20429:20431 BC_FREE_BUFFER u0000000020000000 no match binder: 20429:20431 got new transaction with bad transaction stack, transaction 168 has target 20429:0 binder: 20429:20431 transaction failed 29201/-71, size 0-0 line 2802 binder: 20429:20456 got reply transaction with no transaction stack binder: 20429:20456 transaction failed 29201/-71, size 48-8 line 2690 binder: BINDER_SET_CONTEXT_MGR already set binder: 20429:20431 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 20429:20456 ioctl 40046207 0 returned -16 binder: 20431 RLIMIT_NICE not set binder: 20429:20456 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20429:20457 ioctl 40046205 7f returned -22 binder_alloc: 20429: binder_alloc_buf, no vma binder: 20429:20461 transaction failed 29189/-3, size 0-0 line 2890 binder: 20429:20457 BC_FREE_BUFFER u0000000020000000 no match binder_alloc: 20429: binder_alloc_buf, no vma binder: 20429:20457 transaction failed 29189/-3, size 0-0 line 2890 binder: 20429:20456 got transaction to invalid handle binder: 20429:20456 transaction failed 29201/-22, size 32-8 line 2775 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 20429:20431 transaction 168 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 168, target dead binder: 20499:20502 ioctl c0046209 20001000 returned -22 binder: 20499:20515 ioctl c018620b 208dbfe8 returned -14 binder: 20499:20538 ioctl c018620b 208dbfe8 returned -14 print_req_error: I/O error, dev loop6, sector 0 print_req_error: I/O error, dev loop6, sector 0 print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read print_req_error: I/O error, dev loop6, sector 0 Buffer I/O error on dev loop6, logical block 0, async page read Buffer I/O error on dev loop6, logical block 0, async page read Buffer I/O error on dev loop6, logical block 0, async page read QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=0 nlmsg_type=57 sclass=netlink_route_socket pig=20648 comm=syz-executor3 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl binder: tried to use weak ref as strong ref binder: 20688:20693 Release 1 refcount change on invalid ref 2 ret -22 binder: 20688:20693 BC_ACQUIRE_DONE u0000000000000000 node 174 cookie mismatch 0000000000000001 != 0000000000000000 binder: 20688:20693 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20688:20693 BC_ACQUIRE_DONE u00000000204edf8a node 176 cookie mismatch 0000000000000004 != 0000000000000001 binder_alloc: binder_alloc_mmap_handler: 20688 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 20688:20693 ioctl 40046207 0 returned -16 binder_alloc: 20688: binder_alloc_buf, no vma binder: 20688:20700 transaction failed 29189/-3, size 80-16 line 2890 binder: 20688:20708 Release 1 refcount change on invalid ref 2 ret -22 binder: 20688:20708 BC_ACQUIRE_DONE u0000000000000000 no match binder: 20688:20708 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 20688:20708 IncRefs 0 refcount change on invalid ref 2 ret -22 binder: 20688:20708 BC_ACQUIRE_DONE u0000000000000000 no match binder: undelivered TRANSACTION_ERROR: 29189 binder: release 20688:20693 transaction 175 out, still active binder: unexpected work type, 4, not freed binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 175, target dead QAT: Invalid ioctl QAT: Invalid ioctl Option ' QAT: Invalid ioctl QAT: failed to copy from user. Option ' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 device gre0 entered promiscuous mode CPU: 1 PID: 20823 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #218 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_node mm/slab.c:3292 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3635 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1144 [inline] netlink_sendmsg+0xa86/0xe70 net/netlink/af_netlink.c:1836 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0xca/0x110 net/socket.c:646 sock_write_iter+0x320/0x5e0 net/socket.c:915 call_write_iter include/linux/fs.h:1772 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:482 vfs_write+0x18f/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f10643c8c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f10643c8aa0 RCX: 0000000000452a39 RDX: 0000000000000026 RSI: 0000000020f7b000 RDI: 0000000000000013 RBP: 00007f10643c8a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007f10643c8bc8 R14: 00000000004b75fb R15: 0000000000000000 QAT: Invalid ioctl binder: 20923:20926 ioctl 40286608 5 returned -22 binder: 20923:20926 ioctl 40046205 7 returned -22 binder: 20923:20926 ERROR: BC_REGISTER_LOOPER called without request binder: 20926 RLIMIT_NICE not set QAT: Invalid ioctl binder: 20926 RLIMIT_NICE not set QAT: Invalid ioctl binder: 20926 RLIMIT_NICE not set QAT: Invalid ioctl binder: 20923:20935 ioctl 40046205 1000 returned -22 binder: 20923:20935 BC_INCREFS_DONE node 181 has no pending increfs request binder: 20923:20935 ioctl 40286608 5 returned -22 binder: 20923:20935 ioctl 40046205 7 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 20923:20935 ioctl 40046207 0 returned -16 binder_alloc: 20923: binder_alloc_buf, no vma binder: 20923:20935 transaction failed 29189/-3, size 0-0 line 2890 binder: 20923:20951 got reply transaction with no transaction stack binder: 20923:20951 transaction failed 29201/-71, size 32-8 line 2690 binder: 20923:20962 DecRefs 0 refcount change on invalid ref 1 ret -22 binder: 20923:20962 BC_INCREFS_DONE u0000000000000000 no match binder: 20923:20951 ioctl 40046205 1000 returned -22 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 nla_parse: 42 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. kauditd_printk_skb: 67 callbacks suppressed audit: type=1326 audit(1513069114.160:2166): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. audit: type=1326 audit(1513069114.160:2167): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.160:2168): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=324 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.201:2169): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.201:2170): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.218:2171): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=9 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.219:2172): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.219:2173): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.221:2174): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=298 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513069114.222:2175): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=21063 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 binder: 21063:21068 BC_FREE_BUFFER u0000020400000000 no match netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. binder_alloc: binder_alloc_mmap_handler: 21063 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21063:21068 ioctl 40046207 0 returned -16 binder: 21063:21068 BC_FREE_BUFFER u0000020400000000 no match binder_alloc: 21063: binder_alloc_buf, no vma binder: 21063:21068 transaction failed 29189/-3, size 0-0 line 2890 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 21063:21068 transaction 189 out, still active binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 189, target dead netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor5'. do_dccp_setsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app do_dccp_setsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21223 Comm: syz-executor0 Not tainted 4.15.0-rc3+ #218 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