audit: type=1400 audit(1569489422.060:81): avc: denied { map } for pid=16089 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 INFO: task syz-executor.0:16015 blocked for more than 140 seconds. Not tainted 4.14.146+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29008 16015 18717 0x00000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x22a/0x3c0 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 __do_page_fault+0x8a4/0xbb0 arch/x86/mm/fault.c:1356 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122 RIP: 98161:0x763c80 RSP: 75c9a0:0000000000763c78 EFLAGS: 0075c070 INFO: task syz-executor.0:16025 blocked for more than 140 seconds. Not tainted 4.14.146+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29424 16025 18717 0x80000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x22a/0x3c0 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:511 [inline] do_exit+0x575/0x2a20 kernel/exit.c:862 do_group_exit+0x100/0x2e0 kernel/exit.c:978 get_signal+0x39f/0x1cc0 kernel/signal.c:2422 do_signal+0x96/0x15d0 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x11d/0x160 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x3a3/0x520 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a29 RSP: 002b:00007f0d28e1bcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000075bfd0 RCX: 0000000000459a29 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bfd0 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bfd4 R13: 00007ffe2b403acf R14: 00007f0d28e1c9c0 R15: 000000000075bfd4 INFO: task syz-executor.0:16045 blocked for more than 140 seconds. Not tainted 4.14.146+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29024 16045 18717 0x80000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x22a/0x3c0 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:511 [inline] do_exit+0x575/0x2a20 kernel/exit.c:862 do_group_exit+0x100/0x2e0 kernel/exit.c:978 get_signal+0x39f/0x1cc0 kernel/signal.c:2422 do_signal+0x96/0x15d0 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x11d/0x160 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x3a3/0x520 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a29 RSP: 002b:00007f0d28dfacf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000075c078 RCX: 0000000000459a29 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075c078 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075c07c R13: 00007ffe2b403acf R14: 00007f0d28dfb9c0 R15: 000000000075c07c INFO: task syz-executor.0:16048 blocked for more than 140 seconds. Not tainted 4.14.146+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D30272 16048 16025 0x80000000 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x22a/0x3c0 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:511 [inline] do_exit+0x575/0x2a20 kernel/exit.c:862 do_group_exit+0x100/0x2e0 kernel/exit.c:978 SYSC_exit_group kernel/exit.c:989 [inline] SyS_exit_group+0x19/0x20 kernel/exit.c:987 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a29 RSP: 002b:00007f0d28e1b688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459a29 RDX: 0000000000459a29 RSI: 00007f0d28e1b6c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f0d28e1c6d4 R13: 00000000004bfeeb R14: 00000000004d1db0 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [<0000000038ab8219>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 2 locks held by getty/1758: #0: (&tty->ldisc_sem){++++}, at: [<00000000b1ddc78e>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<000000009241b593>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.0/16015: #0: (&mm->mmap_sem){++++}, at: [<000000007a1fdabb>] __do_page_fault+0x8a4/0xbb0 arch/x86/mm/fault.c:1356 1 lock held by syz-executor.0/16025: #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] exit_mm kernel/exit.c:511 [inline] #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] do_exit+0x575/0x2a20 kernel/exit.c:862 1 lock held by syz-executor.0/16045: #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] exit_mm kernel/exit.c:511 [inline] #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] do_exit+0x575/0x2a20 kernel/exit.c:862 1 lock held by syz-executor.0/16048: #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] exit_mm kernel/exit.c:511 [inline] #0: (&mm->mmap_sem){++++}, at: [<00000000bcc1c216>] do_exit+0x575/0x2a20 kernel/exit.c:862 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.146+ #0 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xca/0x134 lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x119/0x147 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x629/0xbe0 kernel/hung_task.c:274 kthread+0x31f/0x430 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16020 Comm: syz-executor.0 Not tainted 4.14.146+ #0 task: 0000000009275e66 task.stack: 000000005ed7472e RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:100 RSP: 0018:ffff8881dba07fc0 EFLAGS: 00000046 RAX: ffffffff84c9cc30 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffffffff0dd552e RSI: 0000000000000000 RDI: 00000000000000b0 RBP: ffffffff86eaa880 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f0d28e3d700(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f89cc8d5000 CR3: 00000001acbf8002 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: apic_eoi arch/x86/include/asm/apic.h:400 [inline] ack_APIC_irq arch/x86/include/asm/apic.h:444 [inline] entering_ack_irq arch/x86/include/asm/apic.h:636 [inline] smp_apic_timer_interrupt+0x7a/0x650 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:lock_acquire+0x170/0x360 kernel/locking/lockdep.c:3994 RSP: 0018:ffff8881c8357a88 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: ffff8881c9b61780 RCX: 1ffff1103936c3ff RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000246 RBP: ffff8881c65f4740 R08: 0000000000004ee3 R09: 0000000000000001 R10: ffff8881c9b61fd8 R11: 034ed588878dc8e5 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xf7/0x13e0 kernel/locking/mutex.c:893 perf_mmap+0x50d/0x1480 kernel/events/core.c:5416 call_mmap include/linux/fs.h:1793 [inline] mmap_region+0x7d9/0xfb0 mm/mmap.c:1732 do_mmap+0x548/0xb80 mm/mmap.c:1510 do_mmap_pgoff include/linux/mm.h:2209 [inline] vm_mmap_pgoff+0x177/0x1c0 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1560 [inline] SyS_mmap_pgoff+0xf4/0x1b0 mm/mmap.c:1518 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a29 RSP: 002b:00007f0d28e3cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459a29 RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020000000 RBP: 000000000075bf20 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000080011 R11: 0000000000000246 R12: 00007f0d28e3d6d4 R13: 00000000004c5f20 R14: 00000000004dab40 R15: 00000000ffffffff Code: 83 3d ec 39 d9 02 01 7f 02 5d c3 89 ef 5d e9 fb e5 fe ff 48 c7 c7 00 06 a3 87 e8 14 14 4a 00 eb df 66 90 89 ff 89 b7 00 d0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb