FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.4.5670/24205 is trying to acquire lock:
ffffffff8eb4bfc0 (console_owner){-.-.}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline]
ffffffff8eb4bfc0 (console_owner){-.-.}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline]
ffffffff8eb4bfc0 (console_owner){-.-.}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline]
ffffffff8eb4bfc0 (console_owner){-.-.}-{0:0}, at: console_flush_one_record kernel/printk/printk.c:3246 [inline]
ffffffff8eb4bfc0 (console_owner){-.-.}-{0:0}, at: console_flush_all+0x123/0xaf0 kernel/printk/printk.c:3343
but task is already holding lock:
ffff888078cc5a38 (rhashtable_bucket){-.-.}-{0:0}, at: rht_lock+0x8b/0x180 include/linux/rhashtable.h:331
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (rhashtable_bucket){-.-.}-{0:0}:
rht_lock+0xa3/0x180 include/linux/rhashtable.h:331
__rhashtable_remove_fast_one include/linux/rhashtable.h:1065 [inline]
__rhashtable_remove_fast include/linux/rhashtable.h:1146 [inline]
rhashtable_remove_fast include/linux/rhashtable.h:1175 [inline]
rhtab_delete_elem+0x404/0x1b30 kernel/bpf/hashtab.c:2954
rhtab_map_delete_elem+0xe2/0x190 kernel/bpf/hashtab.c:2985
0xffffffffa0400a5a
bpf_dispatcher_nop_func include/linux/bpf.h:1450 [inline]
__bpf_prog_run include/linux/filter.h:755 [inline]
bpf_prog_run include/linux/filter.h:762 [inline]
bpf_prog_run_array include/linux/bpf.h:2602 [inline]
trace_call_bpf+0x3f0/0xb80 kernel/trace/bpf_trace.c:147
perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11398
do_perf_trace_lock include/trace/events/lock.h:49 [inline]
perf_trace_lock+0x32d/0x410 include/trace/events/lock.h:49
__do_trace_lock_release include/trace/events/lock.h:68 [inline]
trace_lock_release include/trace/events/lock.h:68 [inline]
lock_release+0x38e/0x3c0 kernel/locking/lockdep.c:5879
rcu_lock_release include/linux/rcupdate.h:310 [inline]
rcu_read_unlock include/linux/rcupdate.h:871 [inline]
class_rcu_destructor include/linux/rcupdate.h:1183 [inline]
unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709
__unwind_start+0x514/0x660 arch/x86/kernel/unwind_orc.c:787
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
insert_work+0x3d/0x330 kernel/workqueue.c:2226
__queue_work+0xcd8/0x10a0 kernel/workqueue.c:2401
call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers kernel/time/timer.c:2374 [inline]
__run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2386
run_timer_base kernel/time/timer.c:2395 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
handle_softirqs+0x225/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]
lruvec_unlock_irqrestore include/linux/memcontrol.h:1535 [inline]
folios_put_refs+0x8b0/0xb30 mm/swap.c:1049
free_pages_and_swap_cache+0x2ba/0x490 mm/swap_state.c:586
__tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:417 [inline]
tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424
tlb_finish_mmu+0xf4/0x220 mm/mmu_gather.c:549
exit_mmap+0x4b2/0x9f0 mm/mmap.c:1313
__mmput+0x118/0x420 kernel/fork.c:1187
exit_mm+0x221/0x2d0 kernel/exit.c:615
do_exit+0x6cd/0x2360 kernel/exit.c:997
do_group_exit+0x22d/0x2f0 kernel/exit.c:1152
get_signal+0x121b/0x12c0 kernel/signal.c:3046
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #3 (&pool->lock){-.-.}-{2:2}:
__raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158
__queue_work+0x72f/0x10a0 kernel/workqueue.c:2361
queue_work_on+0x106/0x1d0 kernel/workqueue.c:2452
queue_work include/linux/workqueue.h:699 [inline]
rpm_suspend+0xeca/0x17b0 drivers/base/power/runtime.c:688
__pm_runtime_idle+0x12f/0x1a0 drivers/base/power/runtime.c:1129
pm_runtime_put include/linux/pm_runtime.h:551 [inline]
__device_attach+0x355/0x450 drivers/base/dd.c:1116
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3772
serial_base_port_add+0x18f/0x270 drivers/tty/serial/serial_base_bus.c:186
serial_core_port_device_add drivers/tty/serial/serial_core.c:3275 [inline]
serial_core_register_port+0x37f/0x2840 drivers/tty/serial/serial_core.c:3314
serial8250_register_8250_port+0x16b4/0x2090 drivers/tty/serial/8250/8250_core.c:828
serial_pnp_probe+0x56a/0x7f0 drivers/tty/serial/8250/8250_pnp.c:480
pnp_device_probe+0x30b/0x4c0 drivers/pnp/driver.c:111
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__driver_attach+0x339/0x600 drivers/base/dd.c:1292
bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383
bus_add_driver+0x345/0x670 drivers/base/bus.c:763
driver_register+0x23a/0x320 drivers/base/driver.c:174
serial8250_init+0x8f/0x160 drivers/tty/serial/8250/8250_platform.c:317
do_one_initcall+0x250/0x870 init/main.c:1347
do_initcall_level+0x10a/0x1a0 init/main.c:1409
do_initcalls+0x59/0xa0 init/main.c:1425
kernel_init_freeable+0x29d/0x3e0 init/main.c:1658
kernel_init+0x1d/0x1d0 init/main.c:1548
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
-> #2 (&dev->power.lock){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:166
__pm_runtime_resume+0x10f/0x180 drivers/base/power/runtime.c:1196
pm_runtime_get include/linux/pm_runtime.h:494 [inline]
__uart_start+0x171/0x460 drivers/tty/serial/serial_core.c:149
uart_write+0x251/0x9f0 drivers/tty/serial/serial_core.c:629
process_output_block drivers/tty/n_tty.c:557 [inline]
n_tty_write+0xd49/0x11e0 drivers/tty/n_tty.c:2366
iterate_tty_write drivers/tty/tty_io.c:1006 [inline]
file_tty_write+0x509/0x9c0 drivers/tty/tty_io.c:1081
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&port_lock_key){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:166
uart_port_lock_irqsave include/linux/serial_core.h:719 [inline]
serial8250_console_write+0x153/0x1ba0 drivers/tty/serial/8250/8250_port.c:3344
console_emit_next_record kernel/printk/printk.c:3183 [inline]
console_flush_one_record kernel/printk/printk.c:3269 [inline]
console_flush_all+0x6ea/0xaf0 kernel/printk/printk.c:3343
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0xd1/0x1c0 kernel/printk/printk.c:3413
vprintk_emit+0x485/0x560 kernel/printk/printk.c:2479
_printk+0xdd/0x130 kernel/printk/printk.c:2504
register_console+0xbc3/0xfc0 kernel/printk/printk.c:4208
univ8250_console_init+0x3a/0x70 drivers/tty/serial/8250/8250_core.c:515
console_init+0x10b/0x4a0 kernel/printk/printk.c:4407
start_kernel+0x238/0x3e0 init/main.c:1112
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x137/0x1b0 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x157
-> #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+0x1520/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
console_lock_spinning_enable kernel/printk/printk.c:1902 [inline]
console_emit_next_record kernel/printk/printk.c:3177 [inline]
console_flush_one_record kernel/printk/printk.c:3269 [inline]
console_flush_all+0x693/0xaf0 kernel/printk/printk.c:3343
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0xd1/0x1c0 kernel/printk/printk.c:3413
vprintk_emit+0x485/0x560 kernel/printk/printk.c:2479
_printk+0xdd/0x130 kernel/printk/printk.c:2504
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x3ed/0x560 lib/fault-inject.c:174
strncpy_from_user+0x36/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x150 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:244 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:253 [inline]
bpf_probe_read_user_str+0x2a/0x70 kernel/trace/bpf_trace.c:250
bpf_prog_6f0599548a29a9fd+0x43/0x49
bpf_dispatcher_nop_func include/linux/bpf.h:1450 [inline]
__bpf_prog_run include/linux/filter.h:755 [inline]
bpf_prog_run include/linux/filter.h:762 [inline]
bpf_prog_run_array include/linux/bpf.h:2602 [inline]
trace_call_bpf+0x3f0/0xb80 kernel/trace/bpf_trace.c:147
perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11398
do_perf_trace_lock include/trace/events/lock.h:49 [inline]
perf_trace_lock+0x32d/0x410 include/trace/events/lock.h:49
__do_trace_lock_release include/trace/events/lock.h:68 [inline]
trace_lock_release include/trace/events/lock.h:68 [inline]
lock_release+0x38e/0x3c0 kernel/locking/lockdep.c:5879
rht_assign_unlock include/linux/rhashtable.h:431 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:850 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:1020 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0xa4a/0x1360 net/netlink/af_netlink.c:569
netlink_autobind+0x22d/0x300 net/netlink/af_netlink.c:827
netlink_sendmsg+0x531/0xb40 net/netlink/af_netlink.c:1863
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 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 --> &pool->lock --> rhashtable_bucket
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(rhashtable_bucket);
lock(&pool->lock);
lock(rhashtable_bucket);
lock(console_owner);
*** DEADLOCK ***
6 locks held by syz.4.5670/24205:
#0: ffff888012653260 (sk_lock-AF_NETLINK){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1713 [inline]
#0: ffff888012653260 (sk_lock-AF_NETLINK){+.+.}-{0:0}, at: netlink_insert+0xcb/0x1360 net/netlink/af_netlink.c:558
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:840 [inline]
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: __rhashtable_insert_fast include/linux/rhashtable.h:774 [inline]
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: rhashtable_lookup_insert_key include/linux/rhashtable.h:1020 [inline]
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: __netlink_insert net/netlink/af_netlink.c:508 [inline]
#1: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: netlink_insert+0x2b3/0x1360 net/netlink/af_netlink.c:569
#2: ffff888078cc5a38 (rhashtable_bucket){-.-.}-{0:0}, at: rht_lock+0x8b/0x180 include/linux/rhashtable.h:331
#3: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#3: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:840 [inline]
#3: ffffffff8eb59ce0 (rcu_read_lock){....}-{1:3}, at: trace_call_bpf+0xb6/0xb80 kernel/trace/bpf_trace.c:-1
#4: ffffffff8eb4c020 (console_lock){+.+.}-{0:0}, at: _printk+0xdd/0x130 kernel/printk/printk.c:2504
#5: ffffffff8ea338b8 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline]
#5: ffffffff8ea338b8 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline]
#5: ffffffff8ea338b8 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline]
#5: ffffffff8ea338b8 (console_srcu){....}-{0:0}, at: console_flush_one_record kernel/printk/printk.c:3246 [inline]
#5: ffffffff8ea338b8 (console_srcu){....}-{0:0}, at: console_flush_all+0x123/0xaf0 kernel/printk/printk.c:3343
stack backtrace:
CPU: 0 UID: 0 PID: 24205 Comm: syz.4.5670 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043
check_noncircular+0x12e/0x150 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+0x1520/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
console_lock_spinning_enable kernel/printk/printk.c:1902 [inline]
console_emit_next_record kernel/printk/printk.c:3177 [inline]
console_flush_one_record kernel/printk/printk.c:3269 [inline]
console_flush_all+0x693/0xaf0 kernel/printk/printk.c:3343
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0xd1/0x1c0 kernel/printk/printk.c:3413
vprintk_emit+0x485/0x560 kernel/printk/printk.c:2479
_printk+0xdd/0x130 kernel/printk/printk.c:2504
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x3ed/0x560 lib/fault-inject.c:174
strncpy_from_user+0x36/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x150 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:244 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:253 [inline]
bpf_probe_read_user_str+0x2a/0x70 kernel/trace/bpf_trace.c:250
bpf_prog_6f0599548a29a9fd+0x43/0x49
bpf_dispatcher_nop_func include/linux/bpf.h:1450 [inline]
__bpf_prog_run include/linux/filter.h:755 [inline]
bpf_prog_run include/linux/filter.h:762 [inline]
bpf_prog_run_array include/linux/bpf.h:2602 [inline]
trace_call_bpf+0x3f0/0xb80 kernel/trace/bpf_trace.c:147
perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11398
do_perf_trace_lock include/trace/events/lock.h:49 [inline]
perf_trace_lock+0x32d/0x410 include/trace/events/lock.h:49
__do_trace_lock_release include/trace/events/lock.h:68 [inline]
trace_lock_release include/trace/events/lock.h:68 [inline]
lock_release+0x38e/0x3c0 kernel/locking/lockdep.c:5879
rht_assign_unlock include/linux/rhashtable.h:431 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:850 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:1020 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0xa4a/0x1360 net/netlink/af_netlink.c:569
netlink_autobind+0x22d/0x300 net/netlink/af_netlink.c:827
netlink_sendmsg+0x531/0xb40 net/netlink/af_netlink.c:1863
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc56c99e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc56abf6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc56cc25fa0 RCX: 00007fc56c99e0d9
RDX: 0000000004000000 RSI: 00002000000000c0 RDI: 0000000000000009
RBP: 00007fc56abf6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fc56cc26038 R14: 00007fc56cc25fa0 R15: 00007ffe9e942c58
CPU: 0 UID: 0 PID: 24205 Comm: syz.4.5670 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x40c/0x560 lib/fault-inject.c:174
strncpy_from_user+0x36/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x150 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:244 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:253 [inline]
bpf_probe_read_user_str+0x2a/0x70 kernel/trace/bpf_trace.c:250
bpf_prog_6f0599548a29a9fd+0x43/0x49
bpf_dispatcher_nop_func include/linux/bpf.h:1450 [inline]
__bpf_prog_run include/linux/filter.h:755 [inline]
bpf_prog_run include/linux/filter.h:762 [inline]
bpf_prog_run_array include/linux/bpf.h:2602 [inline]
trace_call_bpf+0x3f0/0xb80 kernel/trace/bpf_trace.c:147
perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11398
do_perf_trace_lock include/trace/events/lock.h:49 [inline]
perf_trace_lock+0x32d/0x410 include/trace/events/lock.h:49
__do_trace_lock_release include/trace/events/lock.h:68 [inline]
trace_lock_release include/trace/events/lock.h:68 [inline]
lock_release+0x38e/0x3c0 kernel/locking/lockdep.c:5879
rht_assign_unlock include/linux/rhashtable.h:431 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:850 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:1020 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0xa4a/0x1360 net/netlink/af_netlink.c:569
netlink_autobind+0x22d/0x300 net/netlink/af_netlink.c:827
netlink_sendmsg+0x531/0xb40 net/netlink/af_netlink.c:1863
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc56c99e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc56abf6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc56cc25fa0 RCX: 00007fc56c99e0d9
RDX: 0000000004000000 RSI: 00002000000000c0 RDI: 0000000000000009
RBP: 00007fc56abf6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fc56cc26038 R14: 00007fc56cc25fa0 R15: 00007ffe9e942c58