FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.17.0-rc1-syzkaller-00116-gd7ee5bdce789 #0 Not tainted
------------------------------------------------------
syz.2.1666/12418 is trying to acquire lock:
ffffffff8e4ce820 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable+0x9f/0xd0 kernel/printk/printk.c:1924
but task is already holding lock:
ffff8880b843a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:644 [inline]
ffff8880b843a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:629
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&rq->__lock){-.-.}-{2:2}:
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:636
raw_spin_rq_lock kernel/sched/sched.h:1519 [inline]
task_rq_lock+0xcf/0x490 kernel/sched/core.c:736
cgroup_move_task+0x81/0x2a0 kernel/sched/psi.c:1170
css_set_move_task+0x288/0x5f0 kernel/cgroup/cgroup.c:918
cgroup_post_fork+0x201/0x9e0 kernel/cgroup/cgroup.c:6759
copy_process+0x5cfa/0x7690 kernel/fork.c:2419
kernel_clone+0xfc/0x930 kernel/fork.c:2605
user_mode_thread+0xc7/0x110 kernel/fork.c:2683
rest_init+0x23/0x2b0 init/main.c:709
start_kernel+0x3ee/0x4d0 init/main.c:1097
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:307
x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:288
common_startup_64+0x13e/0x148
-> #3 (&p->pi_lock){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:557 [inline]
try_to_wake_up+0xb7/0x1870 kernel/sched/core.c:4216
__wake_up_common+0x135/0x1f0 kernel/sched/wait.c:108
__wake_up_common_lock kernel/sched/wait.c:125 [inline]
__wake_up+0x31/0x60 kernel/sched/wait.c:146
tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x68e/0x860 drivers/tty/serial/8250/8250_port.c:1728
serial8250_handle_irq+0x761/0xcb0 drivers/tty/serial/8250/8250_port.c:1836
serial8250_default_handle_irq+0x9a/0x250 drivers/tty/serial/8250/8250_port.c:1856
serial8250_interrupt+0xf8/0x1b0 drivers/tty/serial/8250/8250_core.c:82
__handle_irq_event_percpu+0x22c/0x7d0 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x3ca/0x9e0 kernel/irq/chip.c:855
generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
handle_irq arch/x86/kernel/irq.c:254 [inline]
call_irq_handler arch/x86/kernel/irq.c:310 [inline]
__common_interrupt+0xd0/0x2f0 arch/x86/kernel/irq.c:325
common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:318
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:81
arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
default_idle+0x13/0x20 arch/x86/kernel/process.c:757
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:190 [inline]
do_idle+0x391/0x510 kernel/sched/idle.c:330
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x148
-> #2 (&tty->write_wait){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
__wake_up_common_lock kernel/sched/wait.c:124 [inline]
__wake_up+0x1c/0x60 kernel/sched/wait.c:146
tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x68e/0x860 drivers/tty/serial/8250/8250_port.c:1728
serial8250_handle_irq+0x761/0xcb0 drivers/tty/serial/8250/8250_port.c:1836
serial8250_default_handle_irq+0x9a/0x250 drivers/tty/serial/8250/8250_port.c:1856
serial8250_interrupt+0xf8/0x1b0 drivers/tty/serial/8250/8250_core.c:82
__handle_irq_event_percpu+0x22c/0x7d0 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x3ca/0x9e0 kernel/irq/chip.c:855
generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
handle_irq arch/x86/kernel/irq.c:254 [inline]
call_irq_handler arch/x86/kernel/irq.c:310 [inline]
__common_interrupt+0xd0/0x2f0 arch/x86/kernel/irq.c:325
common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:318
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:81
arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
default_idle+0x13/0x20 arch/x86/kernel/process.c:757
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:190 [inline]
do_idle+0x391/0x510 kernel/sched/idle.c:330
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x148
-> #1 (&port_lock_key){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:717 [inline]
serial8250_console_write+0x181/0x1890 drivers/tty/serial/8250/8250_port.c:3355
console_emit_next_record kernel/printk/printk.c:3138 [inline]
console_flush_all+0x801/0xc60 kernel/printk/printk.c:3226
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3325
vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450
_printk+0xc7/0x100 kernel/printk/printk.c:2475
register_console+0xc2d/0x11b0 kernel/printk/printk.c:4126
univ8250_console_init+0x5f/0x90 drivers/tty/serial/8250/8250_core.c:516
console_init+0x14f/0x680 kernel/printk/printk.c:4325
start_kernel+0x29f/0x4d0 init/main.c:1035
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:307
x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:288
common_startup_64+0x13e/0x148
-> #0 (console_owner){-.-.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0xb0/0xd0 kernel/printk/printk.c:1924
console_emit_next_record kernel/printk/printk.c:3132 [inline]
console_flush_all+0x7aa/0xc60 kernel/printk/printk.c:3226
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3325
vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450
_printk+0xc7/0x100 kernel/printk/printk.c:2475
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x4e7/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_trace_copy_string kernel/bpf/helpers.c:761 [inline]
bpf_bprintf_prepare+0xe90/0x13f0 kernel/bpf/helpers.c:976
____bpf_trace_printk kernel/trace/bpf_trace.c:373 [inline]
bpf_trace_printk+0xda/0x190 kernel/trace/bpf_trace.c:363
bpf_prog_7c77c7e0f6645ad8+0x3e/0x44
bpf_dispatcher_nop_func include/linux/bpf.h:1332 [inline]
__bpf_prog_run include/linux/filter.h:718 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2257 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2298
__bpf_trace_contention_begin+0xc9/0x110 include/trace/events/lock.h:95
__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline]
class_preempt_notrace_destructor include/linux/preempt.h:473 [inline]
__do_trace_contention_begin include/trace/events/lock.h:95 [inline]
trace_contention_begin.constprop.0+0xde/0x160 include/trace/events/lock.h:95
__pv_queued_spin_lock_slowpath+0x109/0xcf0 kernel/locking/qspinlock.c:219
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:644 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:629
raw_spin_rq_lock kernel/sched/sched.h:1519 [inline]
rq_lock kernel/sched/sched.h:1841 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6865
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7288
irqentry_exit+0x36/0x90 kernel/entry/common.c:197
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
hook_file_ioctl_common+0xc5/0x410 security/landlock/fs.c:1724
security_file_ioctl+0x211/0x240 security/security.c:2943
__do_sys_ioctl fs/ioctl.c:592 [inline]
__se_sys_ioctl fs/ioctl.c:584 [inline]
__x64_sys_ioctl+0xb7/0x210 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
console_owner --> &p->pi_lock --> &rq->__lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rq->__lock);
lock(&p->pi_lock);
lock(&rq->__lock);
lock(console_owner);
*** DEADLOCK ***
4 locks held by syz.2.1666/12418:
#0: ffff8880b843a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:644 [inline]
#0: ffff8880b843a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:629
#1: ffffffff8e5c11e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#1: ffffffff8e5c11e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#1: ffffffff8e5c11e0 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2256 [inline]
#1: ffffffff8e5c11e0 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run2+0x1bc/0x590 kernel/trace/bpf_trace.c:2298
#2: ffffffff8e5aec60 (console_lock){+.+.}-{0:0}, at: _printk+0xc7/0x100 kernel/printk/printk.c:2475
#3: ffffffff8e5aecd0 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:336 [inline]
#3: ffffffff8e5aecd0 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:319 [inline]
#3: ffffffff8e5aecd0 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
#3: ffffffff8e5aecd0 (console_srcu){....}-{0:0}, at: console_flush_all+0x158/0xc60 kernel/printk/printk.c:3203
stack backtrace:
CPU: 0 UID: 0 PID: 12418 Comm: syz.2.1666 Not tainted 6.17.0-rc1-syzkaller-00116-gd7ee5bdce789 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2043
check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2175
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0xb0/0xd0 kernel/printk/printk.c:1924
console_emit_next_record kernel/printk/printk.c:3132 [inline]
console_flush_all+0x7aa/0xc60 kernel/printk/printk.c:3226
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3325
vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450
_printk+0xc7/0x100 kernel/printk/printk.c:2475
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x4e7/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_trace_copy_string kernel/bpf/helpers.c:761 [inline]
bpf_bprintf_prepare+0xe90/0x13f0 kernel/bpf/helpers.c:976
____bpf_trace_printk kernel/trace/bpf_trace.c:373 [inline]
bpf_trace_printk+0xda/0x190 kernel/trace/bpf_trace.c:363
bpf_prog_7c77c7e0f6645ad8+0x3e/0x44
bpf_dispatcher_nop_func include/linux/bpf.h:1332 [inline]
__bpf_prog_run include/linux/filter.h:718 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2257 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2298
__bpf_trace_contention_begin+0xc9/0x110 include/trace/events/lock.h:95
__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline]
class_preempt_notrace_destructor include/linux/preempt.h:473 [inline]
__do_trace_contention_begin include/trace/events/lock.h:95 [inline]
trace_contention_begin.constprop.0+0xde/0x160 include/trace/events/lock.h:95
__pv_queued_spin_lock_slowpath+0x109/0xcf0 kernel/locking/qspinlock.c:219
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:644 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:629
raw_spin_rq_lock kernel/sched/sched.h:1519 [inline]
rq_lock kernel/sched/sched.h:1841 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6865
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7288
irqentry_exit+0x36/0x90 kernel/entry/common.c:197
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:hook_file_ioctl_common+0xc5/0x410 security/landlock/fs.c:1732
Code: 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 0f b6 14 02 4c 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 58 02 00 00 45 0f b7 37 <31> ff 44 89 f6 e8 31 ee 17 fd 66 45 85 f6 78 69 e8 16 f3 17 fd 48
RSP: 0018:ffffc9000393fe10 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88807ba548c0 RCX: 1ffffffff1beef30
RDX: 0000000000000000 RSI: ffffffff84a39f86 RDI: ffff88807ba549e8
RBP: ffffc9000393feb8 R08: 0000000000000007 R09: 0000000000000000
R10: ffff88807ba548c1 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000000007a8 R14: 000000000000ffff R15: ffff888067bfadb0
security_file_ioctl+0x211/0x240 security/security.c:2943
__do_sys_ioctl fs/ioctl.c:592 [inline]
__se_sys_ioctl fs/ioctl.c:584 [inline]
__x64_sys_ioctl+0xb7/0x210 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ac978ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3aca5b1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3ac99b5fa0 RCX: 00007f3ac978ebe9
RDX: 0000200000000540 RSI: 00000000000007a8 RDI: 0000000000000004
RBP: 00007f3aca5b1090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3ac99b6038 R14: 00007f3ac99b5fa0 R15: 00007ffeed911ab8
CPU: 0 UID: 0 PID: 12418 Comm: syz.2.1666 Not tainted 6.17.0-rc1-syzkaller-00116-gd7ee5bdce789 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x512/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_trace_copy_string kernel/bpf/helpers.c:761 [inline]
bpf_bprintf_prepare+0xe90/0x13f0 kernel/bpf/helpers.c:976
____bpf_trace_printk kernel/trace/bpf_trace.c:373 [inline]
bpf_trace_printk+0xda/0x190 kernel/trace/bpf_trace.c:363
bpf_prog_7c77c7e0f6645ad8+0x3e/0x44
bpf_dispatcher_nop_func include/linux/bpf.h:1332 [inline]
__bpf_prog_run include/linux/filter.h:718 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2257 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2298
__bpf_trace_contention_begin+0xc9/0x110 include/trace/events/lock.h:95
__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline]
class_preempt_notrace_destructor include/linux/preempt.h:473 [inline]
__do_trace_contention_begin include/trace/events/lock.h:95 [inline]
trace_contention_begin.constprop.0+0xde/0x160 include/trace/events/lock.h:95
__pv_queued_spin_lock_slowpath+0x109/0xcf0 kernel/locking/qspinlock.c:219
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:644 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:629
raw_spin_rq_lock kernel/sched/sched.h:1519 [inline]
rq_lock kernel/sched/sched.h:1841 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6865
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7288
irqentry_exit+0x36/0x90 kernel/entry/common.c:197
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:hook_file_ioctl_common+0xc5/0x410 security/landlock/fs.c:1732
Code: 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 0f b6 14 02 4c 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 58 02 00 00 45 0f b7 37 <31> ff 44 89 f6 e8 31 ee 17 fd 66 45 85 f6 78 69 e8 16 f3 17 fd 48
RSP: 0018:ffffc9000393fe10 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88807ba548c0 RCX: 1ffffffff1beef30
RDX: 0000000000000000 RSI: ffffffff84a39f86 RDI: ffff88807ba549e8
RBP: ffffc9000393feb8 R08: 0000000000000007 R09: 0000000000000000
R10: ffff88807ba548c1 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000000007a8 R14: 000000000000ffff R15: ffff888067bfadb0
security_file_ioctl+0x211/0x240 security/security.c:2943
__do_sys_ioctl fs/ioctl.c:592 [inline]
__se_sys_ioctl fs/ioctl.c:584 [inline]
__x64_sys_ioctl+0xb7/0x210 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ac978ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3aca5b1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3ac99b5fa0 RCX: 00007f3ac978ebe9
RDX: 0000200000000540 RSI: 00000000000007a8 RDI: 0000000000000004
RBP: 00007f3aca5b1090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3ac99b6038 R14: 00007f3ac99b5fa0 R15: 00007ffeed911ab8
----------------
Code disassembly (best guess), 5 bytes skipped:
0: df 4c 89 fa fisttps -0x6(%rcx,%rcx,4)
4: 48 c1 ea 03 shr $0x3,%rdx
8: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
c: 4c 89 f8 mov %r15,%rax
f: 83 e0 07 and $0x7,%eax
12: 83 c0 01 add $0x1,%eax
15: 38 d0 cmp %dl,%al
17: 7c 08 jl 0x21
19: 84 d2 test %dl,%dl
1b: 0f 85 58 02 00 00 jne 0x279
21: 45 0f b7 37 movzwl (%r15),%r14d
* 25: 31 ff xor %edi,%edi <-- trapping instruction
27: 44 89 f6 mov %r14d,%esi
2a: e8 31 ee 17 fd call 0xfd17ee60
2f: 66 45 85 f6 test %r14w,%r14w
33: 78 69 js 0x9e
35: e8 16 f3 17 fd call 0xfd17f350
3a: 48 rex.W