binder: 1967:1971 ioctl 40046207 0 returned -16 binder_alloc: 9177: binder_alloc_buf, no vma binder: 1967:1971 transaction failed 29189/-3, size 72-56 line 3136 binder: BINDER_SET_CONTEXT_MGR already set binder: 1981:1987 ioctl 40046207 0 returned -16 INFO: task kworker/u4:4:2138 blocked for more than 140 seconds. Not tainted 4.9.141+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:4 D25936 2138 2 0x80000000 Workqueue: events_unbound fsnotify_mark_destroy_workfn ffff8801cf3597c0 ffff8801c5788b00 ffff8801c9850b00 ffff8801cf5997c0 ffff8801db621018 ffff8801d870f7c0 ffffffff828075c2 0000000000000096 ffffffff83ceb060 ffffffff830d2c20 0000000000006e55 ffff8801db6218f0 Call Trace: [] schedule+0x7f/0x1b0 kernel/sched/core.c:3553 [] schedule_timeout+0x735/0xe20 kernel/time/timer.c:1771 [] do_wait_for_common kernel/sched/completion.c:75 [inline] [] __wait_for_common kernel/sched/completion.c:93 [inline] [] wait_for_common+0x3ef/0x5d0 kernel/sched/completion.c:101 [] wait_for_completion+0x18/0x20 kernel/sched/completion.c:122 [] __synchronize_srcu+0x254/0x3b0 kernel/rcu/srcu.c:448 [] synchronize_srcu+0x1e/0x40 kernel/rcu/srcu.c:492 [] fsnotify_mark_destroy_list+0x10f/0x390 fs/notify/mark.c:551 [] fsnotify_mark_destroy_workfn+0xe/0x10 fs/notify/mark.c:561 [] process_one_work+0x831/0x15f0 kernel/workqueue.c:2092 [] worker_thread+0xd6/0x1140 kernel/workqueue.c:2226 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Showing all locks held in the system: 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 kernel/hung_task.c:239 #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1902: #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 fs/file.c:781 2 locks held by getty/2030: #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.+.}, at: [] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142 2 locks held by kworker/u4:4/2138: #0: ("events_unbound"){.+.+.+}, at: [] process_one_work+0x73c/0x15f0 kernel/workqueue.c:2085 #1: ((reaper_work).work){+.+...}, at: [] process_one_work+0x774/0x15f0 kernel/workqueue.c:2089 1 lock held by init/10792: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/10799: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/10802: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/10803: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/10804: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/10806: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by syz-executor.1/1980: #0: (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [] inode_lock include/linux/fs.h:766 [inline] #0: (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [] __sock_release+0x8b/0x260 net/socket.c:604 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.141+ #23 ffff8801d9907d08 ffffffff81b42e79 0000000000000000 0000000000000001 0000000000000001 0000000000000001 ffffffff810983b0 ffff8801d9907d40 ffffffff81b4df89 0000000000000001 0000000000000000 0000000000000003 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] nmi_cpu_backtrace.cold.0+0x48/0x87 lib/nmi_backtrace.c:99 [] nmi_trigger_cpumask_backtrace+0x12c/0x151 lib/nmi_backtrace.c:60 [] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [] check_hung_task kernel/hung_task.c:125 [inline] [] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [] watchdog+0x6ad/0xa20 kernel/hung_task.c:239 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2124 Comm: syz-executor.3 Not tainted 4.9.141+ #23 task: ffff8801d1a017c0 task.stack: ffff8801ad178000 RIP: 0010:[] c [] preempt_count arch/x86/include/asm/preempt.h:22 [inline] RIP: 0010:[] c [] check_kcov_mode kernel/kcov.c:66 [inline] RIP: 0010:[] c [] __sanitizer_cov_trace_pc+0x11/0x50 kernel/kcov.c:100 RSP: 0018:ffff8801ad17f9a8 EFLAGS: 00000246 RAX: ffff8801d1a017c0 RBX: 0000000000000004 RCX: ffffed003a34040d RDX: 0000000000000000 RSI: ffffffff819f7f3c RDI: ffff8801d1a0206c RBP: ffff8801ad17f9a8 R08: ffff8801d1a02070 R09: d8a1064c1ba25689 R10: ffff8801d1a017c0 R11: 0000000000000001 R12: 00000000000000cf R13: 00000000000000cf R14: ffff8801ad17fc9c R15: ffff8801ad17fc98 FS: 0000000000000000(0000) GS:ffff8801db600000(0063) knlGS:000000000a17d900 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f38b79447d0 CR3: 00000001ad114000 CR4: 00000000001606b0 Stack: ffff8801ad17f9d8c ffffffff819f7f3cc ffffffff819f7d30c ffff8801a88fc740c dffffc0000000000c ffff8801a88fc740c ffff8801ad17f9f0c ffffffff819f8083c ffffffff831cc760c ffff8801ad17fa20c ffffffff819e6e73c 00000000ad17fbc0c Call Trace: [] rcu_read_unlock include/linux/rcupdate.h:927 [inline] [] task_has_perm+0x20c/0x330 security/selinux/hooks.c:1614 [] selinux_task_wait+0x23/0x30 security/selinux/hooks.c:3954 [] security_task_wait+0x73/0xb0 security/security.c:1032 [] wait_consider_task+0x2a1/0x3620 kernel/exit.c:1377 [] do_wait_thread kernel/exit.c:1490 [inline] [] do_wait+0x423/0x950 kernel/exit.c:1561 [] SYSC_wait4 kernel/exit.c:1693 [inline] [] SyS_wait4+0x12b/0x1f0 kernel/exit.c:1658 [] C_SYSC_wait4 kernel/compat.c:543 [inline] [] compat_SyS_wait4+0x254/0x290 kernel/compat.c:536 [] sys32_waitpid+0x25/0x30 arch/x86/ia32/sys_ia32.c:172 [] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline] [] do_fast_syscall_32+0x2f1/0xa10 arch/x86/entry/common.c:390 [] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137 Code: ce8 c15 c76 c1d c00 ce9 c9e cfe cff cff c4c c89 ce7 ce8 c08 c76 c1d c00 ce9 c23 cfe cff cff c0f c1f c00 c55 c48 c89 ce5 c48 c8b c75 c08 c65 c48 c8b c04 c25 c00 c7e c01 c00 c<65> c8b c15 c18 cc3 ccf c7e c81 ce2 c00 c01 c1f c00 c75 c2b c8b c90 c38 c12 c00 c00 c