R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f05ca35b000 R15: 0000000000000000
CPU: 1 PID: 27811 Comm: syz-executor.6 Not tainted 5.10.56 #1
======================================================
WARNING: possible circular locking dependency detected
5.10.56 #1 Not tainted
------------------------------------------------------
syz-executor.7/27806 is trying to acquire lock:
ffffffff84d0a8a0 (console_owner){-.-.}-{0:0}, at: console_unlock+0x2e1/0xb30 kernel/printk/printk.c:2498

but task is already holding lock:
ffff88800d5a0958 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x6c/0x3a0 kernel/signal.c:1317

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&sighand->siglock){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159
       __lock_task_sighand+0xd3/0x2f0 kernel/signal.c:1391
       lock_task_sighand include/linux/sched/signal.h:693 [inline]
       task_work_add+0x1db/0x2b0 kernel/task_work.c:58
       io_req_task_work_add fs/io_uring.c:2049 [inline]
       __io_async_wake+0x40b/0x8d0 fs/io_uring.c:4955
       __wake_up_common+0x14c/0x4c0 kernel/sched/wait.c:93
       __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:123
       tty_ldisc_lock+0x40/0xb0 drivers/tty/tty_ldisc.c:335
       tty_ldisc_hangup+0x204/0x690 drivers/tty/tty_ldisc.c:744
       __tty_hangup.part.0+0x50d/0x9b0 drivers/tty/tty_io.c:624
       __tty_hangup drivers/tty/tty_io.c:574 [inline]
       tty_vhangup drivers/tty/tty_io.c:697 [inline]
       tty_ioctl+0x103e/0x17c0 drivers/tty/tty_io.c:2683
       vfs_ioctl fs/ioctl.c:48 [inline]
       __do_sys_ioctl fs/ioctl.c:753 [inline]
       __se_sys_ioctl fs/ioctl.c:739 [inline]
       __x64_sys_ioctl+0x196/0x210 fs/ioctl.c:739
       do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
       entry_SYSCALL_64_after_hwframe+0x44/0xa9

-> #3 (&tty->read_wait){....}-{2:2}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:151
       spin_lock include/linux/spinlock.h:354 [inline]
       io_poll_double_wake+0x1f8/0x550 fs/io_uring.c:5068
       __wake_up_common+0x14c/0x4c0 kernel/sched/wait.c:93
       __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:123
       tty_ldisc_lock+0x55/0xb0 drivers/tty/tty_ldisc.c:336
       tty_ldisc_hangup+0x204/0x690 drivers/tty/tty_ldisc.c:744
       __tty_hangup.part.0+0x50d/0x9b0 drivers/tty/tty_io.c:624
       __tty_hangup drivers/tty/tty_io.c:574 [inline]
       tty_vhangup drivers/tty/tty_io.c:697 [inline]
       tty_ioctl+0x103e/0x17c0 drivers/tty/tty_io.c:2683
       vfs_ioctl fs/ioctl.c:48 [inline]
       __do_sys_ioctl fs/ioctl.c:753 [inline]
       __se_sys_ioctl fs/ioctl.c:739 [inline]
       __x64_sys_ioctl+0x196/0x210 fs/ioctl.c:739
       do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
       entry_SYSCALL_64_after_hwframe+0x44/0xa9

-> #2 (&tty->write_wait){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159
       __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:122
       tty_port_default_wakeup+0x26/0x40 drivers/tty/tty_port.c:50
       serial8250_tx_chars+0x516/0xb40 drivers/tty/serial/8250/8250_port.c:1844
       serial8250_handle_irq.part.0+0x3f1/0x4c0 drivers/tty/serial/8250/8250_port.c:1931
       serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1904 [inline]
       serial8250_default_handle_irq+0xb8/0x230 drivers/tty/serial/8250/8250_port.c:1947
       serial8250_interrupt+0xf4/0x1a0 drivers/tty/serial/8250/8250_core.c:126
       __handle_irq_event_percpu+0x2ef/0x820 kernel/irq/handle.c:156
       handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
       handle_irq_event+0x102/0x290 kernel/irq/handle.c:213
       handle_edge_irq+0x249/0xd00 kernel/irq/chip.c:819
       asm_call_irq_on_stack+0x12/0x20
       __run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline]
       run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline]
       handle_irq arch/x86/kernel/irq.c:230 [inline]
       __common_interrupt arch/x86/kernel/irq.c:249 [inline]
       common_interrupt+0xdd/0x190 arch/x86/kernel/irq.c:239
       asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:626
       native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
       arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
       default_idle+0xe/0x10 arch/x86/kernel/process.c:688
       default_idle_call+0x87/0xd0 kernel/sched/idle.c:112
       cpuidle_idle_call kernel/sched/idle.c:194 [inline]
       do_idle+0x3a9/0x520 kernel/sched/idle.c:300
       cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396
       secondary_startup_64_no_verify+0xc2/0xcb

-> #1 (&port_lock_key){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159
       serial8250_console_write+0x8dd/0xb20 drivers/tty/serial/8250/8250_port.c:3317
       call_console_drivers kernel/printk/printk.c:1909 [inline]
       console_unlock+0x826/0xb30 kernel/printk/printk.c:2523
       register_console kernel/printk/printk.c:2864 [inline]
       register_console+0x53d/0x800 kernel/printk/printk.c:2754
       univ8250_console_init+0x3a/0x46 drivers/tty/serial/8250/8250_core.c:690
       console_init+0x361/0x4fa kernel/printk/printk.c:2974
       start_kernel+0x2f2/0x49b init/main.c:984
       secondary_startup_64_no_verify+0xc2/0xcb

-> #0 (console_owner){-.-.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:2985 [inline]
       check_prevs_add kernel/locking/lockdep.c:3110 [inline]
       validate_chain kernel/locking/lockdep.c:3725 [inline]
       __lock_acquire+0x29f6/0x5b20 kernel/locking/lockdep.c:4950
       lock_acquire kernel/locking/lockdep.c:5560 [inline]
       lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5525
       console_lock_spinning_enable kernel/printk/printk.c:1761 [inline]
       console_unlock+0x360/0xb30 kernel/printk/printk.c:2520
       vprintk_emit+0x1da/0x4d0 kernel/printk/printk.c:2052
       vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401
       printk+0xba/0xed kernel/printk/printk.c:2100
       fail_dump lib/fault-inject.c:45 [inline]
       should_fail+0x472/0x5a0 lib/fault-inject.c:146
       should_failslab+0x5/0x10 mm/slab_common.c:1193
       slab_pre_alloc_hook mm/slab.h:515 [inline]
       slab_alloc_node mm/slub.c:2814 [inline]
       slab_alloc mm/slub.c:2897 [inline]
       kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
       __sigqueue_alloc+0x1ee/0x560 kernel/signal.c:435
       __send_signal+0x5db/0x1040 kernel/signal.c:1116
       force_sig_info_to_task+0x2a0/0x3a0 kernel/signal.c:1334
       force_sig_fault_to_task kernel/signal.c:1673 [inline]
       force_sig_fault+0xb0/0xf0 kernel/signal.c:1680
       __bad_area_nosemaphore+0x270/0x320 arch/x86/mm/fault.c:832
       do_user_addr_fault+0x89c/0xc30 arch/x86/mm/fault.c:1342
       handle_page_fault arch/x86/mm/fault.c:1436 [inline]
       exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1492
       asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571

other info that might help us debug this:

Chain exists of:
  console_owner --> &tty->read_wait --> &sighand->siglock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&sighand->siglock);
                               lock(&tty->read_wait);
                               lock(&sighand->siglock);
  lock(console_owner);

 *** DEADLOCK ***

2 locks held by syz-executor.7/27806:
 #0: ffff88800d5a0958 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x6c/0x3a0 kernel/signal.c:1317
 #1: ffffffff84deac20 (console_lock){+.+.}-{0:0}, at: vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401

stack backtrace:
CPU: 0 PID: 27806 Comm: syz-executor.7 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 check_noncircular+0x25f/0x2e0 kernel/locking/lockdep.c:2120
 check_prev_add kernel/locking/lockdep.c:2985 [inline]
 check_prevs_add kernel/locking/lockdep.c:3110 [inline]
 validate_chain kernel/locking/lockdep.c:3725 [inline]
 __lock_acquire+0x29f6/0x5b20 kernel/locking/lockdep.c:4950
 lock_acquire kernel/locking/lockdep.c:5560 [inline]
 lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5525
 console_lock_spinning_enable kernel/printk/printk.c:1761 [inline]
 console_unlock+0x360/0xb30 kernel/printk/printk.c:2520
 vprintk_emit+0x1da/0x4d0 kernel/printk/printk.c:2052
 vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401
 printk+0xba/0xed kernel/printk/printk.c:2100
 fail_dump lib/fault-inject.c:45 [inline]
 should_fail+0x472/0x5a0 lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 __sigqueue_alloc+0x1ee/0x560 kernel/signal.c:435
 __send_signal+0x5db/0x1040 kernel/signal.c:1116
 force_sig_info_to_task+0x2a0/0x3a0 kernel/signal.c:1334
 force_sig_fault_to_task kernel/signal.c:1673 [inline]
 force_sig_fault+0xb0/0xf0 kernel/signal.c:1680
 __bad_area_nosemaphore+0x270/0x320 arch/x86/mm/fault.c:832
 do_user_addr_fault+0x89c/0xc30 arch/x86/mm/fault.c:1342
 handle_page_fault arch/x86/mm/fault.c:1436 [inline]
 exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1492
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571
RIP: 0033:0x456651
Code: c1 e1 20 48 09 ca 48 0f bc d2 48 01 d0 48 29 f8 c3 0f 1f 84 00 00 00 00 00 89 f9 48 89 fa c5 f9 ef c0 83 e1 3f 83 f9 20 77 1f <c5> fd 74 0f c5 fd d7 c1 85 c0 0f 85 df 00 00 00 48 83 c7 20 83 e1
RSP: 002b:00007f05ca35afa8 EFLAGS: 00010283
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000000000000
RBP: 00007f05ca35b040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f05ca35b000 R15: 0000000000000000
hpet: Lost 2 RTC interrupts
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e73418f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 00000000001b6000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 00000000000000d2 R08: 00000000000db000 R09: ffffffffffffffff
R10: 00000000000000d2 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000001b6000 R15: 000000002001e300
CPU: 0 PID: 27807 Comm: syz-executor.4 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3827
 alloc_inode+0x63/0x230 fs/inode.c:234
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb1b1cd0f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 0000000000008800 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 0000000000000008 R08: 0000000000004400 R09: ffffffffffffffff
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000010000 R15: 0000000020010d00
CPU: 1 PID: 27812 Comm: syz-executor.5 Not tainted 5.10.56 #1
hpet: Lost 1 RTC interrupts
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2ee83c5f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 00000000001b8000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 0000000000000019 R08: 00000000000dc000 R09: ffffffffffffffff
R10: 0000000000000019 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000001b8000 R15: 0000000020012a00
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: 27814 Comm: syz-executor.1 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo+0x14/0xe0 fs/inode.c:930
 sock_alloc+0x3c/0x260 net/socket.c:573
 __sock_create+0xb9/0x760 net/socket.c:1378
 sock_create net/socket.c:1465 [inline]
 __sys_socket+0xef/0x200 net/socket.c:1507
 __do_sys_socket net/socket.c:1516 [inline]
 __se_sys_socket net/socket.c:1514 [inline]
 __x64_sys_socket+0x6f/0xb0 net/socket.c:1514
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x467c77
Code: f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2e1a0ef0f8 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000467c77
RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 00007f2e1a0f01d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
R13: 00007ffe2060ceff R14: 00007f2e1a0f0300 R15: 0000000000022000
CPU: 1 PID: 27815 Comm: syz-executor.0 Not tainted 5.10.56 #1
hpet: Lost 2 RTC interrupts
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
socket: no more sockets
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 mem_pool_alloc mm/kmemleak.c:423 [inline]
 create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578
 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
 slab_post_alloc_hook mm/slab.h:534 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x159/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd5c62ddf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 000000000024f000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 00000000000000e2 R08: 0000000000127800 R09: ffffffffffffffff
R10: 00000000000000e2 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 000000000024f000 R15: 000000002001fa00
CPU: 0 PID: 27813 Comm: syz-executor.2 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f687d413f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 00000000001b9000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 000000000000004c R08: 00000000000dc800 R09: ffffffffffffffff
R10: 000000000000004c R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000001b9000 R15: 0000000020016400
hpet: Lost 2 RTC interrupts
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 27825 Comm: syz-executor.4 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 mem_pool_alloc mm/kmemleak.c:423 [inline]
 create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578
 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
 slab_post_alloc_hook mm/slab.h:534 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x159/0x350 mm/slub.c:2902
 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3827
 alloc_inode+0x63/0x230 fs/inode.c:234
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb1b1cd0f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 0000000000008800 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 0000000000000008 R08: 0000000000004400 R09: ffffffffffffffff
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000010000 R15: 0000000020010d00
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 27829 Comm: syz-executor.3 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3827
 alloc_inode+0x63/0x230 fs/inode.c:234
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8714a62f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 0000000000011000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 000000000000000a R08: 0000000000008800 R09: ffffffffffffffff
R10: 000000000000000a R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000011000 R15: 0000000020010f00
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 27830 Comm: syz-executor.2 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 mem_pool_alloc mm/kmemleak.c:423 [inline]
 create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578
 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
 slab_post_alloc_hook mm/slab.h:534 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x159/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f687d413f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 00000000001b9000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 000000000000004c R08: 00000000000dc800 R09: ffffffffffffffff
R10: 000000000000004c R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000001b9000 R15: 0000000020016400
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 27831 Comm: syz-executor.7 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 mem_pool_alloc mm/kmemleak.c:423 [inline]
 create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578
 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
 slab_post_alloc_hook mm/slab.h:534 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x159/0x350 mm/slub.c:2902
 __sigqueue_alloc+0x1ee/0x560 kernel/signal.c:435
 __send_signal+0x5db/0x1040 kernel/signal.c:1116
 force_sig_info_to_task+0x2a0/0x3a0 kernel/signal.c:1334
 force_sig_fault_to_task kernel/signal.c:1673 [inline]
 force_sig_fault+0xb0/0xf0 kernel/signal.c:1680
 __bad_area_nosemaphore+0x270/0x320 arch/x86/mm/fault.c:832
 do_user_addr_fault+0x89c/0xc30 arch/x86/mm/fault.c:1342
 handle_page_fault arch/x86/mm/fault.c:1436 [inline]
 exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1492
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571
RIP: 0033:0x456651
Code: c1 e1 20 48 09 ca 48 0f bc d2 48 01 d0 48 29 f8 c3 0f 1f 84 00 00 00 00 00 89 f9 48 89 fa c5 f9 ef c0 83 e1 3f 83 f9 20 77 1f <c5> fd 74 0f c5 fd d7 c1 85 c0 0f 85 df 00 00 00 48 83 c7 20 83 e1
RSP: 002b:00007f05ca35afa8 EFLAGS: 00010283
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000000000000
RBP: 00007f05ca35b040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f05ca35b000 R15: 0000000000000000
CPU: 1 PID: 27834 Comm: syz-executor.6 Not tainted 5.10.56 #1
hpet: Lost 2 RTC interrupts
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 mem_pool_alloc mm/kmemleak.c:423 [inline]
 create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578
 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
 slab_post_alloc_hook mm/slab.h:534 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x159/0x350 mm/slub.c:2902
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:589 [inline]
 security_inode_alloc+0x34/0x160 security/security.c:972
 inode_init_always+0x503/0xc90 fs/inode.c:171
 alloc_inode+0x84/0x230 fs/inode.c:241
 new_inode_pseudo fs/inode.c:930 [inline]
 new_inode+0x23/0x240 fs/inode.c:959
 shmem_get_inode+0x15e/0xbc0 mm/shmem.c:2289
 __shmem_file_setup mm/shmem.c:4195 [inline]
 __shmem_file_setup+0xb8/0x310 mm/shmem.c:4180
 __do_sys_memfd_create+0x271/0x450 mm/memfd.c:307
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e73418f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466609
RDX: 00000000001b6000 RSI: 0000000000000000 RDI: 00000000004bee66
RBP: 00000000000000d2 R08: 00000000000db000 R09: ffffffffffffffff
R10: 00000000000000d2 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000001b6000 R15: 000000002001e300
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root