netlink: 9 bytes leftover after parsing attributes in process `syz-executor3'. ====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc3+ #219 Not tainted ------------------------------------------------------ syz-executor4/6084 is trying to acquire lock: (&ctx->mutex){+.+.}, at: [<00000000d44ca9ea>] perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 but task is already holding lock: (&pipe->mutex/1){+.+.}, at: [<000000005d15ec14>] pipe_lock_nested fs/pipe.c:67 [inline] (&pipe->mutex/1){+.+.}, at: [<000000005d15ec14>] pipe_lock+0x56/0x70 fs/pipe.c:75 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #8 (&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 -> #7 (sb_writers){.+.+}: spin_lock include/linux/spinlock.h:315 [inline] cache_grow_end.part.37+0x3a/0x180 mm/slab.c:2726 cache_grow_end mm/slab.c:2720 [inline] cache_alloc_refill mm/slab.c:3047 [inline] ____cache_alloc mm/slab.c:3120 [inline] __do_cache_alloc mm/slab.c:3342 [inline] slab_alloc mm/slab.c:3377 [inline] kmem_cache_alloc+0x433/0x760 mm/slab.c:3545 getname_kernel+0x54/0x340 fs/namei.c:218 kern_path_locked+0x83/0x350 fs/namei.c:2404 handle_remove+0xbe/0xb60 drivers/base/devtmpfs.c:306 -> #6 ((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 -> #5 (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 -> #4 (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 -> #3 (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 -> #2 (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 -> #1 (event_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 perf_trace_init+0x58/0xab0 kernel/trace/trace_event_perf.c:216 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:9204 [inline] perf_event_alloc+0x1005/0x2b00 kernel/events/core.c:9484 inherit_event.isra.92+0x15b/0x920 kernel/events/core.c:10698 inherit_group kernel/events/core.c:10789 [inline] inherit_task_group.isra.94.part.95+0x73/0x240 kernel/events/core.c:10847 inherit_task_group kernel/events/core.c:10827 [inline] perf_event_init_context kernel/events/core.c:10898 [inline] perf_event_init_task+0x348/0x890 kernel/events/core.c:10966 copy_process.part.36+0x173b/0x4ae0 kernel/fork.c:1727 copy_process kernel/fork.c:1566 [inline] _do_fork+0x1ef/0xff0 kernel/fork.c:2045 SYSC_clone kernel/fork.c:2155 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2149 do_syscall_64+0x26c/0x920 arch/x86/entry/common.c:285 return_from_SYSCALL_64+0x0/0x75 -> #0 (&ctx->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_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 perf_event_ctx_lock kernel/events/core.c:1262 [inline] perf_read+0xb9/0x970 kernel/events/core.c:4507 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x508/0xae0 fs/splice.c:416 do_splice_to+0x110/0x170 fs/splice.c:880 do_splice fs/splice.c:1173 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x11a8/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 other info that might help us debug this: Chain exists of: &ctx->mutex --> sb_writers --> &pipe->mutex/1 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pipe->mutex/1); lock(sb_writers); lock(&pipe->mutex/1); lock(&ctx->mutex); *** DEADLOCK *** 1 lock held by syz-executor4/6084: #0: (&pipe->mutex/1){+.+.}, at: [<000000005d15ec14>] pipe_lock_nested fs/pipe.c:67 [inline] #0: (&pipe->mutex/1){+.+.}, at: [<000000005d15ec14>] pipe_lock+0x56/0x70 fs/pipe.c:75 stack backtrace: CPU: 1 PID: 6084 Comm: syz-executor4 Not tainted 4.15.0-rc3+ #219 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_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 perf_event_ctx_lock kernel/events/core.c:1262 [inline] perf_read+0xb9/0x970 kernel/events/core.c:4507 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x508/0xae0 fs/splice.c:416 do_splice_to+0x110/0x170 fs/splice.c:880 do_splice fs/splice.c:1173 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x11a8/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f7b71c3bc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000017 RSI: 0000000000000000 RDI: 0000000000000013 RBP: 000000000000039b R08: 00000000000000b9 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3728 R13: 00000000ffffffff R14: 00007f7b71c3c6d4 R15: 0000000000000000 binder_alloc: binder_alloc_mmap_handler: 6083 2023f000-2063f000 already mapped failed -16 netlink: 9 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'. binder_alloc: binder_alloc_mmap_handler: 6083 20004000-20005000 already mapped failed -16 binder: release 6100:6103 transaction 26 out, still active binder: undelivered TRANSACTION_COMPLETE binder: 6100:6103 BC_FREE_BUFFER u0000020400000000 no match binder: BINDER_SET_CONTEXT_MGR already set binder: 6100:6103 ioctl 40046207 0 returned -16 binder_alloc: 6100: binder_alloc_buf, no vma binder: 6100:6103 transaction failed 29189/-3, size 0-0 line 2890 binder: undelivered TRANSACTION_ERROR: 29189 binder: 6100:6103 BC_FREE_BUFFER u0000020400000000 no match binder_alloc: 6100: binder_alloc_buf, no vma binder: 6100:6103 transaction failed 29189/-3, size 0-0 line 2890 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 26, target dead binder: undelivered transaction 27, process died. netlink: 16 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor4'. sctp: [Deprecated]: syz-executor1 (pid 6215) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead Subscription rejected, illegal request Subscription rejected, illegal request sctp: [Deprecated]: syz-executor1 (pid 6230) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead audit: type=1326 audit(1513196640.855:359): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.855:360): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=318 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.857:361): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.859:362): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=64 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.859:363): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.862:364): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.862:365): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.863:366): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=190 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1513196640.863:367): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 QAT: Invalid ioctl audit: type=1326 audit(1513196640.863:368): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6316 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=330 compat=0 ip=0x452a39 code=0x7ffc0000 QAT: Invalid ioctl netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. encrypted_key: master key parameter 'RÂTJ‰ÆÇX…C8µx–€«Œ' is invalid encrypted_key: master key parameter 'RÂTJ‰ÆÇX…C8µx–€«Œ' is invalid binder_alloc: 6781: binder_alloc_buf, no vma binder: 6781:6795 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 6781:6795 ioctl 40046207 0 returned -16 binder_alloc: 6781: binder_alloc_buf, no vma binder: 6781:6795 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 6836: binder_alloc_buf, no vma binder: 6836:6837 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 6836:6837 ioctl 40046207 0 returned -16 binder_alloc: 6836: binder_alloc_buf, no vma binder: 6836:6837 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 6876: binder_alloc_buf, no vma binder: 6876:6877 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 6876:6895 ioctl 40046207 0 returned -16 binder_alloc: 6876: binder_alloc_buf, no vma binder: 6876:6877 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 6938: binder_alloc_buf, no vma binder: 6938:6941 transaction failed 29189/-3, size 64-48 line 2890 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 6952 Comm: syz-executor7 Not tainted 4.15.0-rc3+ #219 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] kmem_cache_alloc+0x47/0x760 mm/slab.c:3545 ptlock_alloc+0x24/0x70 mm/memory.c:4685 ptlock_init include/linux/mm.h:1790 [inline] pgtable_page_ctor include/linux/mm.h:1824 [inline] pte_alloc_one+0x59/0x100 arch/x86/mm/pgtable.c:32 __do_huge_pmd_anonymous_page mm/huge_memory.c:564 [inline] do_huge_pmd_anonymous_page+0x554/0x1b00 mm/huge_memory.c:728 create_huge_pmd mm/memory.c:3828 [inline] __handle_mm_fault+0x1b9f/0x3e20 mm/memory.c:4031 handle_mm_fault+0x334/0x8d0 mm/memory.c:4097 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504 page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1094 RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 arch/x86/lib/copy_user_64.S:66 RSP: 0018:ffff8801c60dfc50 EFLAGS: 00010202 RAX: ffffed0038c1bf99 RBX: 0000000000000010 RCX: 0000000000000002 RDX: 0000000000000000 RSI: ffff8801c60dfcb8 RDI: 00000000202ba000 RBP: ffff8801c60dfc80 R08: 0000000000000005 R09: ffffed0038c1bf99 R10: 0000000000000002 R11: ffffed0038c1bf98 R12: 00000000202ba000 R13: ffff8801c60dfcb8 R14: 00007ffffffff000 R15: 00000000202ba010 copy_to_user include/linux/uaccess.h:155 [inline] put_timespec64 kernel/time/time.c:867 [inline] put_itimerspec64+0x10f/0x2f0 kernel/time/time.c:891 SYSC_timerfd_gettime fs/timerfd.c:559 [inline] SyS_timerfd_gettime+0xbd/0xd0 fs/timerfd.c:553 do_syscall_64+0x26c/0x920 arch/x86/entry/common.c:285 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x452a39 RSP: 002b:00007f24b0e55c58 EFLAGS: 00000212 ORIG_RAX: 000000000000011f RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000000 RSI: 00000000202ba000 RDI: 0000000000000013 RBP: 000000000000060c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f71c0 R13: 0000000000000014 R14: 00007f24b0e566d4 R15: ffffffffffffffff binder_alloc: 6971: binder_alloc_buf, no vma binder: 6971:6976 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 6971:6987 ioctl 40046207 0 returned -16 binder_alloc: 6971: binder_alloc_buf, no vma binder: 6971:6976 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7022: binder_alloc_buf, no vma binder: 7022:7026 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7022:7041 ioctl 40046207 0 returned -16 binder_alloc: 7022: binder_alloc_buf, no vma binder: 7022:7026 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7077: binder_alloc_buf, no vma binder: 7077:7081 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7077:7103 ioctl 40046207 0 returned -16 binder_alloc: 7077: binder_alloc_buf, no vma binder: 7077:7081 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7149: binder_alloc_buf, no vma binder: 7149:7153 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7149:7162 ioctl 40046207 0 returned -16 binder_alloc: 7149: binder_alloc_buf, no vma binder: 7149:7153 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7189: binder_alloc_buf, no vma binder: 7189:7192 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7189:7192 ioctl 40046207 0 returned -16 binder_alloc: 7189: binder_alloc_buf, no vma binder: 7189:7192 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7245: binder_alloc_buf, no vma binder: 7245:7249 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7245:7263 ioctl 40046207 0 returned -16 binder_alloc: 7245: binder_alloc_buf, no vma binder: 7245:7249 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7300: binder_alloc_buf, no vma binder: 7300:7301 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7300:7320 ioctl 40046207 0 returned -16 binder_alloc: 7300: binder_alloc_buf, no vma binder: 7300:7301 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7355: binder_alloc_buf, no vma binder: 7355:7358 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7355:7379 ioctl 40046207 0 returned -16 binder_alloc: 7355: binder_alloc_buf, no vma binder: 7355:7358 transaction failed 29189/-3, size 64-48 line 2890 binder: 7409:7414 transaction failed 29189/-22, size 64-48 line 2775 binder: 7409:7419 transaction failed 29189/-22, size 64-48 line 2775 binder_alloc: 7444: binder_alloc_buf, no vma binder: 7444:7445 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 7444: binder_alloc_buf, no vma binder: 7444:7445 ioctl 40046207 0 returned -16 binder: 7444:7456 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7538: binder_alloc_buf, no vma binder: 7538:7542 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7538:7556 ioctl 40046207 0 returned -16 binder_alloc: 7538: binder_alloc_buf, no vma binder: 7538:7542 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7589: binder_alloc_buf, no vma binder: 7589:7591 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 7589: binder_alloc_buf, no vma binder: 7589:7591 ioctl 40046207 0 returned -16 binder: 7589:7604 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7639: binder_alloc_buf, no vma binder: 7639:7640 transaction failed 29189/-3, size 64-48 line 2890 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 binder: BINDER_SET_CONTEXT_MGR already set binder: 7639:7654 ioctl 40046207 0 returned -16 binder_alloc: 7639: binder_alloc_buf, no vma binder: 7639:7640 transaction failed 29189/-3, size 64-48 line 2890 CPU: 1 PID: 7660 Comm: syz-executor3 Not tainted 4.15.0-rc3+ #219 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 binder_alloc: 7681: binder_alloc_buf, no vma binder: 7681:7687 transaction failed 29189/-3, size 64-48 line 2890 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 binder: BINDER_SET_CONTEXT_MGR already set binder: 7681:7688 ioctl 40046207 0 returned -16 binder_alloc: 7681: binder_alloc_buf, no vma binder: 7681:7690 transaction failed 29189/-3, size 64-48 line 2890 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:00007f6e78493c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f6e78493aa0 RCX: 0000000000452a39 RDX: 0000000000000020 RSI: 00000000205b9fe0 RDI: 0000000000000014 RBP: 00007f6e78493a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007f6e78493bc8 R14: 00000000004b75fb R15: 0000000000000000 binder_alloc: 7703: binder_alloc_buf, no vma binder: 7703:7707 transaction failed 29189/-3, size 64-48 line 2890 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 7728 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #219 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:00007fc5bf900c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc5bf900aa0 RCX: 0000000000452a39 RDX: 0000000000000020 RSI: 00000000205b9fe0 RDI: 0000000000000013 RBP: 00007fc5bf900a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007fc5bf900bc8 R14: 00000000004b75fb R15: 0000000000000000 binder: BINDER_SET_CONTEXT_MGR already set binder: 7703:7707 ioctl 40046207 0 returned -16 binder_alloc: 7703: binder_alloc_buf, no vma binder: 7703:7727 transaction failed 29189/-3, size 64-48 line 2890 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7743 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #219 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_trace+0x5a/0x760 mm/slab.c:3654 __do_kmalloc_node mm/slab.c:3674 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3689 __kmalloc_reserve.isra.41+0x41/0xd0 net/core/skbuff.c:137 __alloc_skb+0x13b/0x780 net/core/skbuff.c:205 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:00007fc5bf900c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc5bf900aa0 RCX: 0000000000452a39 RDX: 0000000000000020 RSI: 00000000205b9fe0 RDI: 0000000000000013 RBP: 00007fc5bf900a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007fc5bf900bc8 R14: 00000000004b75fb R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7754 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #219 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] nlmsg_new include/net/netlink.h:511 [inline] netlink_ack+0x283/0xa10 net/netlink/af_netlink.c:2340 netlink_rcv_skb+0x361/0x440 net/netlink/af_netlink.c:2411 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4423 netlink_unicast_kernel net/netlink/af_netlink.c:1272 [inline] netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1298 netlink_sendmsg+0xa4a/0xe70 net/netlink/af_netlink.c:1861 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:00007fc5bf900c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc5bf900aa0 RCX: 0000000000452a39 RDX: 0000000000000020 RSI: 00000000205b9fe0 RDI: 0000000000000013 RBP: 00007fc5bf900a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007fc5bf900bc8 R14: 00000000004b75fb R15: 0000000000000000 binder_alloc: 7757: binder_alloc_buf, no vma binder: 7757:7759 transaction failed 29189/-3, size 64-48 line 2890 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7768 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #219 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_trace+0x5a/0x760 mm/slab.c:3654 __do_kmalloc_node mm/slab.c:3674 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3689 __kmalloc_reserve.isra.41+0x41/0xd0 net/core/skbuff.c:137 __alloc_skb+0x13b/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:983 [inline] nlmsg_new include/net/netlink.h:511 [inline] netlink_ack+0x283/0xa10 net/netlink/af_netlink.c:2340 netlink_rcv_skb+0x361/0x440 net/netlink/af_netlink.c:2411 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4423 netlink_unicast_kernel net/netlink/af_netlink.c:1272 [inline] netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1298 netlink_sendmsg+0xa4a/0xe70 net/netlink/af_netlink.c:1861 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:00007fc5bf900c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc5bf900aa0 RCX: 0000000000452a39 RDX: 0000000000000020 RSI: 00000000205b9fe0 RDI: 0000000000000013 RBP: 00007fc5bf900a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007fc5bf900bc8 R14: 00000000004b75fb R15: 0000000000000000 binder: BINDER_SET_CONTEXT_MGR already set binder: 7757:7769 ioctl 40046207 0 returned -16 binder_alloc: 7757: binder_alloc_buf, no vma binder: 7757:7759 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7786: binder_alloc_buf, no vma binder: 7786:7788 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7786: binder_alloc_buf, no vma binder: BINDER_SET_CONTEXT_MGR already set binder: 7786:7788 ioctl 40046207 0 returned -16 binder: 7786:7801 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7839: binder_alloc_buf, no vma binder: 7839:7841 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7839:7856 ioctl 40046207 0 returned -16 binder_alloc: 7839: binder_alloc_buf, no vma binder: 7839:7841 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7891: binder_alloc_buf, no vma binder: 7891:7900 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 7891: binder_alloc_buf, no vma binder: 7891:7900 ioctl 40046207 0 returned -16 binder: 7891:7912 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7941: binder_alloc_buf, no vma binder: 7941:7944 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 7941:7957 ioctl 40046207 0 returned -16 binder_alloc: 7941: binder_alloc_buf, no vma binder: 7941:7944 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7997: binder_alloc_buf, no vma binder: 7997:8000 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 7997: binder_alloc_buf, no vma binder: BINDER_SET_CONTEXT_MGR already set binder: 7997:8000 ioctl 40046207 0 returned -16 binder: 7997:8019 transaction failed 29189/-3, size 64-48 line 2890 binder_alloc: 8053: binder_alloc_buf, no vma binder: 8053:8059 transaction failed 29189/-3, size 64-48 line 2890 binder: BINDER_SET_CONTEXT_MGR already set binder: 8053:8076 ioctl 40046207 0 returned -16 binder_alloc: 8053: binder_alloc_buf, no vma binder: 8053:8059 transaction failed 29189/-3, size 64-48 line 2890