binder: 7693:7694 transaction failed 29189/-22, size 0-0 line 3011 binder: 7693:7694 transaction failed 29189/-22, size 0-0 line 3011 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 tmpfs: Bad mount option “шѕ!z>0©@№†Ѕ\ INFO: task syz-executor6:7676 blocked for more than 120 seconds. Not tainted 4.4.125-g38f41ec #21 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor6 D ffff8801d411fc08 27992 7676 3841 0x20020004 ffff8801d411fc08 ffff8801d6a04800 0000000000000001 0000000000000007 ffff8801d6a04800 ffff8801db21fdb8 ffff8801db21fde0 ffff8801db21f4d8 ffff8801db21f4c0 ffff8800bb9db000 ffff8801d6a04800 0000000000000000 Call Trace: [] schedule+0x7a/0x1b0 kernel/sched/core.c:3359 [] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3392 [] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [] mutex_lock_nested+0x306/0x850 kernel/locking/mutex.c:621 [] filename_create+0x166/0x460 fs/namei.c:3463 [] user_path_create fs/namei.c:3521 [inline] [] SYSC_mkdirat fs/namei.c:3663 [inline] [] SyS_mkdirat fs/namei.c:3655 [inline] [] SYSC_mkdir fs/namei.c:3682 [inline] [] SyS_mkdir+0xb9/0x260 fs/namei.c:3680 [] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline] [] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459 [] sysenter_flags_fixed+0xd/0x17 2 locks held by syz-executor6/7676: #0: (sb_writers#13){.+.+.+}, at: [] sb_start_write include/linux/fs.h:1498 [inline] #0: (sb_writers#13){.+.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:391 #1: (&sb->s_type->i_mutex_key#17/1){+.+.+.}, at: [] filename_create+0x166/0x460 fs/namei.c:3463 Sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 7700 Comm: syz-executor6 Not tainted 4.4.125-g38f41ec #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d393c800 task.stack: ffff8801d22b0000 RIP: 0010:[] [] do_make_slave fs/pnode.c:84 [inline] RIP: 0010:[] [] change_mnt_propagation+0xaa/0xae0 fs/pnode.c:130 RSP: 0018:ffff8801d22b7a78 EFLAGS: 00000246 RAX: 0000000000040000 RBX: ffff8801b7b61c00 RCX: ffffffff815b33d8 RDX: 1ffff10015a3a2c4 RSI: ffffc90009b13000 RDI: ffff8800ad1d1620 RBP: ffff8801d22b7ad0 R08: ffff8801b7b61c68 R09: 0000000000000001 R10: 0000000000000000 R11: 1ffff1003a456f1c R12: ffff8800ad1d1600 R13: dffffc0000000000 R14: ffffed0036f6c384 R15: ffff8801d2e75600 FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f575fb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000608b20 CR3: 00000001d6880000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801d22b7aa0 ffffffff8157eb2c 0000000000000000 ffff8801b7b61c20 ffff8801b7b61ce0 00040000d22b7ad0 dffffc0000000000 ffff8801b7b61c00 ffff8801b7b61c90 ffff8801d2e75600 ffff8801d22b7b70 ffff8801d22b7b98 Call Trace: [] umount_tree+0x389/0x8c0 fs/namespace.c:1500 [] attach_recursive_mnt+0x739/0x8c0 fs/namespace.c:2034 [] graft_tree+0x168/0x1f0 fs/namespace.c:2098 [] do_loopback fs/namespace.c:2219 [inline] [] do_mount+0x1f8a/0x2900 fs/namespace.c:2826 [] C_SYSC_mount fs/compat.c:824 [inline] [] compat_SyS_mount+0x106/0x1180 fs/compat.c:789 [] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline] [] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459 [] sysenter_flags_fixed+0xd/0x17 Code: 01 ee eb 33 e8 a8 e2 da ff 49 8d 7c 24 20 48 89 fa 48 c1 ea 03 42 80 3c 2a 00 0f 85 a4 09 00 00 41 80 3e 00 4d 8b bf 70 ff ff ff <0f> 85 85 09 00 00 4c 3b 7b 20 74 69 e8 75 e2 da ff 49 8d bc 24 NMI backtrace for cpu 1 CPU: 1 PID: 487 Comm: khungtaskd Not tainted 4.4.125-g38f41ec #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8800bb360000 task.stack: ffff8800bb378000 RIP: 0010:[] [] native_apic_mem_write arch/x86/include/asm/apic.h:94 [inline] RIP: 0010:[] [] __default_send_IPI_dest_field arch/x86/include/asm/ipi.h:119 [inline] RIP: 0010:[] [] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:61 [inline] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1a0 arch/x86/kernel/apic/apic_flat_64.c:69 RSP: 0018:ffff8800bb37fcb8 EFLAGS: 00000046 RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000 RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300 RBP: ffff8800bb37fce0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000246 R13: 0000000000000003 R14: ffffffff8426f5a0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e0603f000 CR3: 00000001d3b22000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff8426f5a0 ffffffff847f0b40 fffffbfff08fdc1c dffffc0000000000 ffff8801db31bca0 ffff8800bb37fd00 ffffffff810b9abb ffffffff839f6dc0 0000000000000003 ffff8800bb37fd60 ffffffff81d11764 ffffffff8141b993 Call Trace: [] nmi_raise_cpu_backtrace+0x5b/0x70 arch/x86/kernel/apic/hw_nmi.c:33 [] nmi_trigger_all_cpu_backtrace+0x4a4/0x550 lib/nmi_backtrace.c:85 [] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 [] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline] [] check_hung_task kernel/hung_task.c:125 [inline] [] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [] watchdog+0x6fa/0xae0 kernel/hung_task.c:238 [] kthread+0x268/0x300 kernel/kthread.c:211 [] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:510 Code: b3 5f ff f6 c4 10 75 e1 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 74 1a e8 2b 33 17 00 4c 89 e7 57 9d 0f 1f