RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07746fc6d4
R13: 00000000004c5a56 R14: 00000000004dbc00 R15: 0000000000000004
======================================================
WARNING: possible circular locking dependency detected
4.19.88-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/10304 is trying to acquire lock:
000000001d7dfc75 (console_owner){-.-.}, at: console_trylock_spinning kernel/printk/printk.c:1669 [inline]
000000001d7dfc75 (console_owner){-.-.}, at: vprintk_emit+0x3d5/0x6d0 kernel/printk/printk.c:1936

but task is already holding lock:
000000007b412359 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 drivers/tty/pty.c:120

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&(&port->lock)->rlock){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
       tty_port_tty_get+0x22/0x90 drivers/tty/tty_port.c:288
       tty_port_default_wakeup+0x16/0x40 drivers/tty/tty_port.c:47
       tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:390
       uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:103
       serial8250_tx_chars+0x495/0xaf0 drivers/tty/serial/8250/8250_port.c:1806
       serial8250_handle_irq.part.0+0x261/0x2b0 drivers/tty/serial/8250/8250_port.c:1879
       serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1865 [inline]
       serial8250_default_handle_irq+0xc0/0x150 drivers/tty/serial/8250/8250_port.c:1895
       serial8250_interrupt+0xfc/0x1e0 drivers/tty/serial/8250/8250_core.c:125
       __handle_irq_event_percpu+0x144/0x8f0 kernel/irq/handle.c:149
       handle_irq_event_percpu+0x74/0x160 kernel/irq/handle.c:189
       handle_irq_event+0xa7/0x134 kernel/irq/handle.c:206
       handle_edge_irq+0x25e/0x8d0 kernel/irq/chip.c:797
       generic_handle_irq_desc include/linux/irqdesc.h:155 [inline]
       handle_irq+0x39/0x50 arch/x86/kernel/irq_64.c:87
       do_IRQ+0x99/0x1d0 arch/x86/kernel/irq.c:246
       ret_from_intr+0x0/0x1e
       native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
       arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:556
       default_idle_call+0x36/0x90 kernel/sched/idle.c:93
       cpuidle_idle_call kernel/sched/idle.c:153 [inline]
       do_idle+0x30c/0x4d0 kernel/sched/idle.c:263
       cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369
       rest_init+0x219/0x222 init/main.c:441
       start_kernel+0x88c/0x8c5 init/main.c:737
       x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
       x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471
       secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

-> #1 (&port_lock_key){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
       serial8250_console_write+0x7ca/0x9f0 drivers/tty/serial/8250/8250_port.c:3247
       univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:590
       call_console_drivers kernel/printk/printk.c:1736 [inline]
       console_unlock+0xbdf/0x10d0 kernel/printk/printk.c:2429
       vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
       vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
       vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
       printk+0xba/0xed kernel/printk/printk.c:2012
       register_console+0x77f/0xb90 kernel/printk/printk.c:2745
       univ8250_console_init+0x3e/0x4b drivers/tty/serial/8250/8250_core.c:685
       console_init+0x4f7/0x761 kernel/printk/printk.c:2831
       start_kernel+0x59c/0x8c5 init/main.c:660
       x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
       x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471
       secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

-> #0 (console_owner){-.-.}:
       lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
       console_trylock_spinning kernel/printk/printk.c:1690 [inline]
       vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936
       vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
       vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
       printk+0xba/0xed kernel/printk/printk.c:2012
       fail_dump lib/fault-inject.c:44 [inline]
       should_fail+0x6f1/0x85c lib/fault-inject.c:149
       __should_failslab+0x121/0x190 mm/failslab.c:32
       should_failslab+0x9/0x14 mm/slab_common.c:1557
       slab_pre_alloc_hook mm/slab.h:424 [inline]
       slab_alloc mm/slab.c:3383 [inline]
       __do_kmalloc mm/slab.c:3725 [inline]
       __kmalloc+0x71/0x750 mm/slab.c:3736
       kmalloc include/linux/slab.h:520 [inline]
       tty_buffer_alloc drivers/tty/tty_buffer.c:170 [inline]
       __tty_buffer_request_room+0x1fb/0x5c0 drivers/tty/tty_buffer.c:268
       tty_insert_flip_string_fixed_flag+0x93/0x1f0 drivers/tty/tty_buffer.c:313
       tty_insert_flip_string include/linux/tty_flip.h:37 [inline]
       pty_write+0x133/0x200 drivers/tty/pty.c:122
       tty_put_char+0x130/0x160 drivers/tty/tty_io.c:2888
       do_output_char+0x15c/0x880 drivers/tty/n_tty.c:486
       __process_echoes+0x3cd/0xa40 drivers/tty/n_tty.c:737
       process_echoes+0xfc/0x170 drivers/tty/n_tty.c:809
       n_tty_set_termios+0xb36/0xe70 drivers/tty/n_tty.c:1868
       tty_set_termios+0x659/0x8c0 drivers/tty/tty_ioctl.c:341
       set_termios drivers/tty/tty_ioctl.c:414 [inline]
       set_termios+0x378/0x5a0 drivers/tty/tty_ioctl.c:362
       tty_mode_ioctl+0x601/0x8c0 drivers/tty/tty_ioctl.c:749
       n_tty_ioctl_helper+0x59/0x3b0 drivers/tty/tty_ioctl.c:940
       n_tty_ioctl+0x59/0x360 drivers/tty/n_tty.c:2464
       tty_ioctl+0x8b5/0x1510 drivers/tty/tty_io.c:2678
       vfs_ioctl fs/ioctl.c:46 [inline]
       file_ioctl fs/ioctl.c:501 [inline]
       do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688
       ksys_ioctl+0xab/0xd0 fs/ioctl.c:705
       __do_sys_ioctl fs/ioctl.c:712 [inline]
       __se_sys_ioctl fs/ioctl.c:710 [inline]
       __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710
       do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  console_owner --> &port_lock_key --> &(&port->lock)->rlock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&port->lock)->rlock);
                               lock(&port_lock_key);
                               lock(&(&port->lock)->rlock);
  lock(console_owner);

 *** DEADLOCK ***

5 locks held by syz-executor.1/10304:
 #0: 00000000e0b162b1 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
 #1: 000000003f65ff7c (&o_tty->termios_rwsem/1){++++}, at: tty_set_termios+0x105/0x8c0 drivers/tty/tty_ioctl.c:328
 #2: 00000000efdb3ef9 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref+0x22/0x90 drivers/tty/tty_ldisc.c:293
 #3: 0000000053dd09bc (&ldata->output_lock){+.+.}, at: process_echoes+0xb6/0x170 drivers/tty/n_tty.c:807
 #4: 000000007b412359 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 drivers/tty/pty.c:120

stack backtrace:
CPU: 0 PID: 10304 Comm: syz-executor.1 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221
 check_prev_add kernel/locking/lockdep.c:1861 [inline]
 check_prevs_add kernel/locking/lockdep.c:1974 [inline]
 validate_chain kernel/locking/lockdep.c:2415 [inline]
 __lock_acquire+0x2e19/0x49c0 kernel/locking/lockdep.c:3411
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
 console_trylock_spinning kernel/printk/printk.c:1690 [inline]
 vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 fail_dump lib/fault-inject.c:44 [inline]
 should_fail+0x6f1/0x85c lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 __do_kmalloc mm/slab.c:3725 [inline]
 __kmalloc+0x71/0x750 mm/slab.c:3736
 kmalloc include/linux/slab.h:520 [inline]
 tty_buffer_alloc drivers/tty/tty_buffer.c:170 [inline]
 __tty_buffer_request_room+0x1fb/0x5c0 drivers/tty/tty_buffer.c:268
 tty_insert_flip_string_fixed_flag+0x93/0x1f0 drivers/tty/tty_buffer.c:313
 tty_insert_flip_string include/linux/tty_flip.h:37 [inline]
 pty_write+0x133/0x200 drivers/tty/pty.c:122
 tty_put_char+0x130/0x160 drivers/tty/tty_io.c:2888
 do_output_char+0x15c/0x880 drivers/tty/n_tty.c:486
 __process_echoes+0x3cd/0xa40 drivers/tty/n_tty.c:737
 process_echoes+0xfc/0x170 drivers/tty/n_tty.c:809
 n_tty_set_termios+0xb36/0xe70 drivers/tty/n_tty.c:1868
 tty_set_termios+0x659/0x8c0 drivers/tty/tty_ioctl.c:341
 set_termios drivers/tty/tty_ioctl.c:414 [inline]
 set_termios+0x378/0x5a0 drivers/tty/tty_ioctl.c:362
 tty_mode_ioctl+0x601/0x8c0 drivers/tty/tty_ioctl.c:749
 n_tty_ioctl_helper+0x59/0x3b0 drivers/tty/tty_ioctl.c:940
 n_tty_ioctl+0x59/0x360 drivers/tty/n_tty.c:2464
 tty_ioctl+0x8b5/0x1510 drivers/tty/tty_io.c:2678
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f07746fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f07746fbc90 RCX: 000000000045a909
RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000003
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07746fc6d4
R13: 00000000004c5a56 R14: 00000000004dbc00 R15: 0000000000000004
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 10321 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x1ea/0x5d0 net/socket.c:1404
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 10331 Comm: syz-executor.5 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 __do_kmalloc mm/slab.c:3725 [inline]
 __kmalloc_track_caller+0x2de/0x750 mm/slab.c:3742
 kstrdup+0x3a/0x70 mm/util.c:56
 snd_timer_instance_new+0x72/0x3d0 sound/core/timer.c:111
 snd_timer_open+0x95c/0x1820 sound/core/timer.c:313
 snd_seq_timer_open+0x240/0x580 sound/core/seq/seq_timer.c:290
 queue_use+0xcb/0x240 sound/core/seq/seq_queue.c:502
 snd_seq_queue_alloc+0x2c5/0x4d0 sound/core/seq/seq_queue.c:189
 snd_seq_ioctl_create_queue+0xb0/0x330 sound/core/seq/seq_clientmgr.c:1531
 snd_seq_kernel_client_ctl+0xf8/0x140 sound/core/seq/seq_clientmgr.c:2355
 alloc_seq_queue.isra.0+0xdc/0x180 sound/core/seq/oss/seq_oss_init.c:370
 snd_seq_oss_open+0x2ff/0x960 sound/core/seq/oss/seq_oss_init.c:228
 odev_open+0x70/0x90 sound/core/seq/oss/seq_oss.c:138
 soundcore_open+0x453/0x610 sound/sound_core.c:598
 chrdev_open+0x245/0x6b0 fs/char_dev.c:423
 do_dentry_open+0x4c3/0x1210 fs/open.c:796
 vfs_open+0xa0/0xd0 fs/open.c:905
 do_last fs/namei.c:3418 [inline]
 path_openat+0x10d7/0x45e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x550 fs/open.c:1088
 __do_sys_openat fs/open.c:1115 [inline]
 __se_sys_openat fs/open.c:1109 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1109
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe442d54c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe442d54c90 RCX: 000000000045a909
RDX: 0002000000084003 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe442d556d4
R13: 00000000004c83f5 R14: 00000000004df758 R15: 0000000000000004
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
CPU: 1 PID: 10349 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x1ea/0x5d0 net/socket.c:1404
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
CPU: 1 PID: 10354 Comm: syz-executor.5 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
 kmalloc include/linux/slab.h:515 [inline]
 kzalloc include/linux/slab.h:709 [inline]
 snd_hrtimer_open+0x44/0x114 sound/core/hrtimer.c:82
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
 snd_timer_open+0x1136/0x1820 sound/core/timer.c:325
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
 snd_seq_timer_open+0x240/0x580 sound/core/seq/seq_timer.c:290
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
 queue_use+0xcb/0x240 sound/core/seq/seq_queue.c:502
 snd_seq_queue_alloc+0x2c5/0x4d0 sound/core/seq/seq_queue.c:189
 snd_seq_ioctl_create_queue+0xb0/0x330 sound/core/seq/seq_clientmgr.c:1531
 snd_seq_kernel_client_ctl+0xf8/0x140 sound/core/seq/seq_clientmgr.c:2355
 alloc_seq_queue.isra.0+0xdc/0x180 sound/core/seq/oss/seq_oss_init.c:370
 snd_seq_oss_open+0x2ff/0x960 sound/core/seq/oss/seq_oss_init.c:228
 odev_open+0x70/0x90 sound/core/seq/oss/seq_oss.c:138
 soundcore_open+0x453/0x610 sound/sound_core.c:598
 chrdev_open+0x245/0x6b0 fs/char_dev.c:423
 do_dentry_open+0x4c3/0x1210 fs/open.c:796
 vfs_open+0xa0/0xd0 fs/open.c:905
 do_last fs/namei.c:3418 [inline]
 path_openat+0x10d7/0x45e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x550 fs/open.c:1088
 __do_sys_openat fs/open.c:1115 [inline]
 __se_sys_openat fs/open.c:1109 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1109
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe442d54c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe442d54c90 RCX: 000000000045a909
RDX: 0002000000084003 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe442d556d4
R13: 00000000004c83f5 R14: 00000000004df758 R15: 0000000000000004
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
CPU: 1 PID: 10373 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_create+0x44c/0x610 security/selinux/hooks.c:4592
 security_socket_create+0x7b/0xc0 security/security.c:1379
 __sock_create+0x90/0x730 net/socket.c:1231
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'vcs27' (0000000032de9929): kobject_add_internal: parent: 'vc', set: 'devices'
kobject: 'vcs27' (0000000032de9929): kobject_uevent_env
kobject: 'vcs27' (0000000032de9929): fill_kobj_path: path = '/devices/virtual/vc/vcs27'
kobject: 'vcsu27' (00000000ee3b6d96): kobject_add_internal: parent: 'vc', set: 'devices'
kobject: 'vcsu27' (00000000ee3b6d96): kobject_uevent_env
kobject: 'vcsu27' (00000000ee3b6d96): fill_kobj_path: path = '/devices/virtual/vc/vcsu27'
kobject: 'vcsa27' (000000005a45ae56): kobject_add_internal: parent: 'vc', set: 'devices'
kobject: 'vcsa27' (000000005a45ae56): kobject_uevent_env
kobject: 'vcsa27' (000000005a45ae56): fill_kobj_path: path = '/devices/virtual/vc/vcsa27'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 10381 Comm: syz-executor.5 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623
 snd_seq_oss_readq_new+0x4b/0x2d0 include/linux/slab.h:515
 snd_seq_oss_open+0x4c7/0x960 sound/core/seq/oss/seq_oss_init.c:245
 odev_open+0x70/0x90 sound/core/seq/oss/seq_oss.c:138
 soundcore_open+0x453/0x610 sound/sound_core.c:598
 chrdev_open+0x245/0x6b0 fs/char_dev.c:423
 do_dentry_open+0x4c3/0x1210 fs/open.c:796
 vfs_open+0xa0/0xd0 fs/open.c:905
 do_last fs/namei.c:3418 [inline]
 path_openat+0x10d7/0x45e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x550 fs/open.c:1088
 __do_sys_openat fs/open.c:1115 [inline]
 __se_sys_openat fs/open.c:1109 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1109
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe442d54c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe442d54c90 RCX: 000000000045a909
RDX: 0002000000084003 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe442d556d4
R13: 00000000004c83f5 R14: 00000000004df758 R15: 0000000000000004
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 10390 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x1ea/0x5d0 net/socket.c:1404
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
CPU: 1 PID: 10397 Comm: syz-executor.5 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 __do_kmalloc mm/slab.c:3725 [inline]
 __kmalloc+0x2e2/0x750 mm/slab.c:3736
 kmalloc_array include/linux/slab.h:637 [inline]
 kcalloc include/linux/slab.h:648 [inline]
 snd_seq_oss_readq_new+0x9a/0x2d0 sound/core/seq/oss/seq_oss_readq.c:54
 snd_seq_oss_open+0x4c7/0x960 sound/core/seq/oss/seq_oss_init.c:245
 odev_open+0x70/0x90 sound/core/seq/oss/seq_oss.c:138
 soundcore_open+0x453/0x610 sound/sound_core.c:598
 chrdev_open+0x245/0x6b0 fs/char_dev.c:423
 do_dentry_open+0x4c3/0x1210 fs/open.c:796
 vfs_open+0xa0/0xd0 fs/open.c:905
 do_last fs/namei.c:3418 [inline]
 path_openat+0x10d7/0x45e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x550 fs/open.c:1088
 __do_sys_openat fs/open.c:1115 [inline]
 __se_sys_openat fs/open.c:1109 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1109
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe442d54c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe442d54c90 RCX: 000000000045a909
RDX: 0002000000084003 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe442d556d4
R13: 00000000004c83f5 R14: 00000000004df758 R15: 0000000000000004
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
CPU: 0 PID: 10436 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_create+0x44c/0x610 security/selinux/hooks.c:4592
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
 security_socket_create+0x7b/0xc0 security/security.c:1379
 __sock_create+0x90/0x730 net/socket.c:1231
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
CPU: 1 PID: 10466 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557
 sock_alloc_inode+0x1d/0x260 net/socket.c:244
 alloc_inode+0x64/0x190 fs/inode.c:210
 new_inode_pseudo+0x19/0xf0 fs/inode.c:903
 sock_alloc+0x41/0x270 net/socket.c:547
 __sock_create+0xc2/0x730 net/socket.c:1240
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
audit: type=1400 audit(1576180079.806:69): avc:  denied  { map } for  pid=10487 comm="syz-executor.2" path="/dev/kvm" dev="devtmpfs" ino=4273 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:kvm_device_t:s0 tclass=chr_file permissive=1
socket: no more sockets
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
CPU: 1 PID: 10501 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 sock_alloc_inode+0x63/0x260 net/socket.c:247
 alloc_inode+0x64/0x190 fs/inode.c:210
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
 new_inode_pseudo+0x19/0xf0 fs/inode.c:903
 sock_alloc+0x41/0x270 net/socket.c:547
 __sock_create+0xc2/0x730 net/socket.c:1240
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
socket: no more sockets
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
CPU: 0 PID: 10542 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 inode_alloc_security security/selinux/hooks.c:255 [inline]
 selinux_inode_alloc_security+0xb6/0x2a0 security/selinux/hooks.c:3007
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
 security_inode_alloc+0x8a/0xd0 security/security.c:448
 inode_init_always+0x56e/0xb40 fs/inode.c:168
 alloc_inode+0x81/0x190 fs/inode.c:217
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
 new_inode_pseudo+0x19/0xf0 fs/inode.c:903
 sock_alloc+0x41/0x270 net/socket.c:547
 __sock_create+0xc2/0x730 net/socket.c:1240
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
socket: no more sockets
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
CPU: 0 PID: 10553 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 inode_alloc_security security/selinux/hooks.c:255 [inline]
 selinux_inode_alloc_security+0xb6/0x2a0 security/selinux/hooks.c:3007
 security_inode_alloc+0x8a/0xd0 security/security.c:448
 inode_init_always+0x56e/0xb40 fs/inode.c:168
 alloc_inode+0x81/0x190 fs/inode.c:217
 new_inode_pseudo+0x19/0xf0 fs/inode.c:903
 sock_alloc+0x41/0x270 net/socket.c:547
 __sock_create+0xc2/0x730 net/socket.c:1240
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
socket: no more sockets
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
CPU: 0 PID: 10611 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 kmalloc include/linux/slab.h:515 [inline]
 kzalloc include/linux/slab.h:709 [inline]
 selinux_sk_alloc_security+0x65/0x1a0 security/selinux/hooks.c:5202
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
 security_sk_alloc+0x77/0xc0 security/security.c:1473
 sk_prot_alloc+0x1bb/0x2e0 net/core/sock.c:1469
 sk_alloc+0x39/0xf70 net/core/sock.c:1520
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
 can_create+0x1e7/0x4b0 net/can/af_can.c:174
 __sock_create+0x3d8/0x730 net/socket.c:1276
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 10651 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
IPVS: Unknown mcast interface: syzkaller1
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
IPVS: Unknown mcast interface: syzkaller1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
CPU: 0 PID: 10688 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
CPU: 0 PID: 10717 Comm: syz-executor.0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
 __should_failslab+0x121/0x190 mm/failslab.c:32
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
 should_failslab+0x9/0x14 mm/slab_common.c:1557
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x47/0x700 mm/slab.c:3557
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ebitmap_cpy+0xcd/0x270 security/selinux/ss/ebitmap.c:60
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
 mls_context_cpy_low security/selinux/ss/context.h:71 [inline]
 mls_compute_sid+0x5d0/0xf60 security/selinux/ss/mls.c:566
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
 security_compute_sid.part.0+0xace/0x15c0 security/selinux/ss/services.c:1785
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
 security_compute_sid security/selinux/ss/services.c:1825 [inline]
 security_transition_sid+0x126/0x190 security/selinux/ss/services.c:1825
 socket_sockcreate_sid security/selinux/hooks.c:4558 [inline]
 socket_sockcreate_sid security/selinux/hooks.c:4550 [inline]
 selinux_socket_post_create+0x675/0x830 security/selinux/hooks.c:4611
 security_socket_post_create+0x83/0xd0 security/security.c:1385
 __sock_create+0x5b1/0x730 net/socket.c:1292
 sock_create net/socket.c:1316 [inline]
 __sys_socketpair+0x272/0x5d0 net/socket.c:1408
 __do_sys_socketpair net/socket.c:1457 [inline]
 __se_sys_socketpair net/socket.c:1454 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a909
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02833a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f02833a3c90 RCX: 000000000045a909
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f02833a46d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 0000000000000004
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (0000000066c0039c): kobject_uevent_env
kobject: 'loop4' (0000000066c0039c): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000f210c31b): kobject_uevent_env
kobject: 'loop3' (00000000f210c31b): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env
kobject: 'loop1' (00000000cab50506): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (0000000094cdd153): kobject_uevent_env
kobject: 'loop0' (0000000094cdd153): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000b6f9cfc9): kobject_uevent_env
kobject: 'loop5' (00000000b6f9cfc9): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000a8500821): kobject_uevent_env
kobject: 'loop2' (00000000a8500821): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000cab50506): kobject_uevent_env