====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc3+ #129 Not tainted ------------------------------------------------------ syz-executor4/6008 is trying to acquire lock: (&pipe->mutex/1){+.+.}, at: [<00000000944d078d>] pipe_lock_nested fs/pipe.c:67 [inline] (&pipe->mutex/1){+.+.}, at: [<00000000944d078d>] pipe_lock+0x56/0x70 fs/pipe.c:75 but task is already holding lock: (sb_writers){.+.+}, at: [<0000000009188037>] file_start_write include/linux/fs.h:2715 [inline] (sb_writers){.+.+}, at: [<0000000009188037>] do_splice fs/splice.c:1146 [inline] (sb_writers){.+.+}, at: [<0000000009188037>] SYSC_splice fs/splice.c:1402 [inline] (sb_writers){.+.+}, at: [<0000000009188037>] SyS_splice+0x1117/0x1630 fs/splice.c:1382 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (sb_writers){.+.+}: 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_register+0x1d/0x20 drivers/base/core.c:1905 tty_register_device_attr+0x422/0x740 drivers/tty/tty_io.c:2956 tty_port_register_device_attr_serdev+0x100/0x140 drivers/tty/tty_port.c:166 uart_add_one_port+0xa7a/0x15b0 drivers/tty/serial/serial_core.c:2783 serial8250_register_8250_port+0xfac/0x1990 drivers/tty/serial/8250/8250_core.c:1045 serial_pnp_probe+0x5e7/0xac0 drivers/tty/serial/8250/8250_pnp.c:480 pnp_device_probe+0x15f/0x250 drivers/pnp/driver.c:109 really_probe drivers/base/dd.c:424 [inline] driver_probe_device+0x71b/0xae0 drivers/base/dd.c:566 __driver_attach+0x181/0x1c0 drivers/base/dd.c:800 bus_for_each_dev+0x154/0x1e0 drivers/base/bus.c:313 driver_attach+0x3d/0x50 drivers/base/dd.c:819 bus_add_driver+0x466/0x620 drivers/base/bus.c:669 driver_register+0x1bf/0x3c0 drivers/base/driver.c:168 pnp_register_driver+0x75/0xa0 drivers/pnp/driver.c:272 serial8250_pnp_init+0x15/0x20 drivers/tty/serial/8250/8250_pnp.c:537 serial8250_init+0x8f/0x270 drivers/tty/serial/8250/8250_core.c:1122 do_one_initcall+0x9e/0x330 init/main.c:831 do_initcall_level init/main.c:897 [inline] do_initcalls init/main.c:905 [inline] do_basic_setup init/main.c:923 [inline] kernel_init_freeable+0x469/0x521 init/main.c:1071 kernel_init+0x13/0x172 init/main.c:998 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 -> #4 (&port->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 uart_set_termios+0x8f/0x5b0 drivers/tty/serial/serial_core.c:1416 tty_set_termios+0x6d4/0xa40 drivers/tty/tty_ioctl.c:334 set_termios+0x377/0x6b0 drivers/tty/tty_ioctl.c:414 tty_mode_ioctl+0x9fb/0xb10 drivers/tty/tty_ioctl.c:749 n_tty_ioctl_helper+0x40/0x360 drivers/tty/tty_ioctl.c:940 n_tty_ioctl+0x148/0x2d0 drivers/tty/n_tty.c:2435 tty_ioctl+0x32e/0x15f0 drivers/tty/tty_io.c:2638 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #3 (&tty->termios_rwsem){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 down_write+0x87/0x120 kernel/locking/rwsem.c:70 n_tty_flush_buffer+0x21/0x320 drivers/tty/n_tty.c:357 tty_buffer_flush+0x29a/0x390 drivers/tty/tty_buffer.c:233 tty_ldisc_flush+0x25/0x70 drivers/tty/tty_ldisc.c:418 tty_port_close_start.part.4+0x1cd/0x4e0 drivers/tty/tty_port.c:603 tty_port_close_start drivers/tty/tty_port.c:646 [inline] tty_port_close+0x3f/0x80 drivers/tty/tty_port.c:640 uart_close+0x77/0x1d0 drivers/tty/serial/serial_core.c:1487 tty_release+0x446/0x14c0 drivers/tty/tty_io.c:1639 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x94/0x96 -> #2 (&buf->lock){+.+.}: 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 tty_buffer_flush+0xbd/0x390 drivers/tty/tty_buffer.c:222 tty_ldisc_flush+0x25/0x70 drivers/tty/tty_ldisc.c:418 tty_port_close_start.part.4+0x1cd/0x4e0 drivers/tty/tty_port.c:603 tty_port_close_start drivers/tty/tty_port.c:646 [inline] tty_port_close+0x3f/0x80 drivers/tty/tty_port.c:640 uart_close+0x77/0x1d0 drivers/tty/serial/serial_core.c:1487 tty_release+0x446/0x14c0 drivers/tty/tty_io.c:1639 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x94/0x96 -> #1 (&tty->ldisc_sem){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __ldsem_down_read_nested+0xd1/0xa90 drivers/tty/tty_ldsem.c:325 ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 tty_ldisc_ref_wait+0x25/0x80 drivers/tty/tty_ldisc.c:277 tty_read+0xf8/0x250 drivers/tty/tty_io.c:852 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 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 -> #0 (&pipe->mutex/1){+.+.}: 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 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 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 other info that might help us debug this: Chain exists of: &pipe->mutex/1 --> (completion)&req.done --> sb_writers Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers); lock((completion)&req.done); lock(sb_writers); lock(&pipe->mutex/1); *** DEADLOCK *** 1 lock held by syz-executor4/6008: #0: (sb_writers){.+.+}, at: [<0000000009188037>] file_start_write include/linux/fs.h:2715 [inline] #0: (sb_writers){.+.+}, at: [<0000000009188037>] do_splice fs/splice.c:1146 [inline] #0: (sb_writers){.+.+}, at: [<0000000009188037>] SYSC_splice fs/splice.c:1402 [inline] #0: (sb_writers){.+.+}, at: [<0000000009188037>] SyS_splice+0x1117/0x1630 fs/splice.c:1382 stack backtrace: CPU: 1 PID: 6008 Comm: syz-executor4 Not tainted 4.15.0-rc3+ #129 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 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 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 RIP: 0023:0xf7f8cc79 RSP: 002b:00000000f778808c EFLAGS: 00000296 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000000000000 RDX: 0000000000000019 RSI: 0000000000000000 RDI: 00000000fffffdf8 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 audit: type=1401 audit(1513211775.921:1434): op=fscreate invalid_context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audit: type=1401 audit(1513211776.066:1435): op=fscreate invalid_context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sctp: [Deprecated]: syz-executor1 (pid 6053) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6061) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6115) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead APIC base relocation is unsupported by KVM sctp: [Deprecated]: syz-executor1 (pid 6151) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6174) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6202) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl sctp: [Deprecated]: syz-executor1 (pid 6277) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl sctp: [Deprecated]: syz-executor1 (pid 6282) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6301) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor1 (pid 6314) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead audit: type=1400 audit(1513211778.685:1436): avc: denied { map } for pid=6708 comm="syz-executor3" path="/dev/vcs0" dev="devtmpfs" ino=43618 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:device_t:s0 tclass=file permissive=1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 6933 Comm: syz-executor4 Not tainted 4.15.0-rc3+ #129 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:filldir64+0x156/0x340 fs/readdir.c:273 RSP: 0018:ffff8801c62bfbd0 EFLAGS: 00010246 RAX: 0000000000019b88 RBX: ffff8801c62bfd10 RCX: ffffffff81b39f55 RDX: 1ffff10038c57fa4 RSI: ffffc90002d3f000 RDI: ffff8801c62bfd34 RBP: ffff8801c62bfc28 R08: 0000000000019b88 R09: 0000000000000004 R10: ffff8801c2424440 R11: 0000000000000000 R12: 0000000020407192 R13: 0000000000000018 R14: 0000000000000001 R15: 0000000000000000 dir_emit_dot include/linux/fs.h:3374 [inline] dir_emit_dots include/linux/fs.h:3385 [inline] proc_ns_dir_readdir+0x153/0x4e0 fs/proc/namespaces.c:122 iterate_dir+0x1ca/0x540 fs/readdir.c:51 SYSC_getdents64 fs/readdir.c:314 [inline] SyS_getdents64+0x221/0x420 fs/readdir.c:295 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 RIP: 0023:0xf7f8cc79 RSP: 002b:00000000f778808c EFLAGS: 00000296 ORIG_RAX: 00000000000000dc RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020407192 RDX: 0000000000000018 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 device gre0 entered promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7892 Comm: syz-executor6 Not tainted 4.15.0-rc3+ #129 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 __pte_alloc+0x2a/0x310 mm/memory.c:648 do_anonymous_page mm/memory.c:3099 [inline] handle_pte_fault mm/memory.c:3934 [inline] __handle_mm_fault+0x2e21/0x3e20 mm/memory.c:4060 handle_mm_fault+0x334/0x8d0 mm/memory.c:4097 faultin_page mm/gup.c:502 [inline] __get_user_pages+0x50c/0x15f0 mm/gup.c:699 __get_user_pages_locked mm/gup.c:870 [inline] __get_user_pages_unlocked mm/gup.c:984 [inline] get_user_pages_unlocked+0x2af/0x460 mm/gup.c:1009 get_user_pages_fast+0x1b4/0x340 mm/gup.c:1835 iov_iter_get_pages+0x270/0x1150 lib/iov_iter.c:1068 bio_iov_iter_get_pages+0x117/0x4e0 block/bio.c:888 __blkdev_direct_IO_simple+0x467/0xef0 fs/block_dev.c:220 blkdev_direct_IO+0xc8a/0x1000 fs/block_dev.c:428 generic_file_read_iter+0x4d2/0x28f0 mm/filemap.c:2344 blkdev_read_iter+0x105/0x170 fs/block_dev.c:1913 call_read_iter include/linux/fs.h:1766 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x6ad/0xa00 fs/read_write.c:413 vfs_read+0x124/0x360 fs/read_write.c:447 SYSC_read fs/read_write.c:573 [inline] SyS_read+0xef/0x220 fs/read_write.c:566 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 RIP: 0023:0xf7fc3c79 RSP: 002b:00000000f77bf08c EFLAGS: 00000296 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020e17000 RDX: 0000000000000200 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 QAT: Invalid ioctl