FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.14.0-syzkaller-ga27a97f71394 #0 Not tainted
------------------------------------------------------
syz.2.500/7519 is trying to acquire lock:
ffffffff8ec19b00 (console_owner){-.-.}-{0:0}, at: console_trylock_spinning kernel/printk/printk.c:2048 [inline]
ffffffff8ec19b00 (console_owner){-.-.}-{0:0}, at: vprintk_emit+0x552/0xa40 kernel/printk/printk.c:2449
but task is already holding lock:
ffff8880b8739b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:605
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:605
raw_spin_rq_lock kernel/sched/sched.h:1513 [inline]
task_rq_lock+0xcb/0x440 kernel/sched/core.c:707
cgroup_move_task+0x9b/0x660 kernel/sched/psi.c:1161
css_set_move_task+0x72e/0x950 kernel/cgroup/cgroup.c:911
cgroup_post_fork+0x27f/0x8c0 kernel/cgroup/cgroup.c:6709
copy_process+0x39b5/0x3d10 kernel/fork.c:2658
kernel_clone+0x242/0x930 kernel/fork.c:2844
user_mode_thread+0x148/0x1c0 kernel/fork.c:2922
rest_init+0x23/0x300 init/main.c:708
start_kernel+0x484/0x510 init/main.c:1099
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:513
x86_64_start_kernel+0x66/0x70 arch/x86/kernel/head64.c:494
common_startup_64+0x13e/0x147
-> #3 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd8/0x130 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:557 [inline]
try_to_wake_up+0xc6/0x15d0 kernel/sched/core.c:4212
__wake_up_common kernel/sched/wait.c:89 [inline]
__wake_up_common_lock+0x130/0x1e0 kernel/sched/wait.c:106
tty_port_default_wakeup+0xa6/0xf0 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x6e2/0x930 drivers/tty/serial/8250/8250_port.c:1842
serial8250_handle_irq+0x631/0xb80 drivers/tty/serial/8250/8250_port.c:1950
serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1970
serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x29c/0xa60 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210
handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831
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:266 [inline]
__common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:292
common_interrupt+0x5e/0xd0 arch/x86/kernel/irq.c:285
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
native_irq_enable arch/x86/include/asm/irqflags.h:-1 [inline]
arch_local_irq_enable arch/x86/include/asm/irqflags.h:119 [inline]
handle_softirqs+0x1f1/0x9b0 kernel/softirq.c:563
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
__orc_find arch/x86/kernel/unwind_orc.c:102 [inline]
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x795/0x23b0 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2389 [inline]
slab_free mm/slub.c:4646 [inline]
kfree+0x198/0x430 mm/slub.c:4845
skb_kfree_head net/core/skbuff.c:1058 [inline]
skb_free_head net/core/skbuff.c:1070 [inline]
skb_release_data+0x6a3/0x8b0 net/core/skbuff.c:1097
skb_release_all net/core/skbuff.c:1162 [inline]
__kfree_skb net/core/skbuff.c:1176 [inline]
consume_skb+0x9f/0xf0 net/core/skbuff.c:1408
__unix_dgram_recvmsg+0xced/0x12e0 net/unix/af_unix.c:2505
sock_recvmsg_nosec net/socket.c:1017 [inline]
sock_recvmsg+0x22f/0x280 net/socket.c:1039
sock_read_iter+0x2c6/0x3e0 net/socket.c:1109
new_sync_read fs/read_write.c:489 [inline]
vfs_read+0x9a0/0xb90 fs/read_write.c:570
ksys_read+0x19d/0x2d0 fs/read_write.c:713
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #2 (&tty->write_wait){-.-.}-{3:3}:
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd8/0x130 kernel/locking/spinlock.c:162
__wake_up_common_lock+0x25/0x1e0 kernel/sched/wait.c:105
tty_port_default_wakeup+0xa6/0xf0 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x6e2/0x930 drivers/tty/serial/8250/8250_port.c:1842
serial8250_handle_irq+0x631/0xb80 drivers/tty/serial/8250/8250_port.c:1950
serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1970
serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x29c/0xa60 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210
handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831
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:266 [inline]
__common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:292
common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:285
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0xd9/0x140 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
uart_port_unlock_irqrestore include/linux/serial_core.h:786 [inline]
uart_write+0x3e4/0xa40 drivers/tty/serial/serial_core.c:636
process_output_block drivers/tty/n_tty.c:561 [inline]
n_tty_write+0xd81/0x1270 drivers/tty/n_tty.c:2377
iterate_tty_write drivers/tty/tty_io.c:1015 [inline]
file_tty_write+0x543/0x9d0 drivers/tty/tty_io.c:1090
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x70f/0xd10 fs/read_write.c:684
ksys_write+0x19d/0x2d0 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&port_lock_key){-.-.}-{3:3}:
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd8/0x130 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:715 [inline]
serial8250_console_write+0x1b0/0x1e00 drivers/tty/serial/8250/8250_port.c:3415
console_emit_next_record kernel/printk/printk.c:3138 [inline]
console_flush_all+0x86d/0xec0 kernel/printk/printk.c:3226
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0x151/0x3b0 kernel/printk/printk.c:3325
vprintk_emit+0x761/0xa40 kernel/printk/printk.c:2450
_printk+0xd5/0x120 kernel/printk/printk.c:2475
register_console+0xc7b/0x1080 kernel/printk/printk.c:4125
univ8250_console_init+0x52/0x90 drivers/tty/serial/8250/8250_core.c:513
console_init+0x1b8/0x6f0 kernel/printk/printk.c:4323
start_kernel+0x2dd/0x510 init/main.c:1034
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:513
x86_64_start_kernel+0x66/0x70 arch/x86/kernel/head64.c:494
common_startup_64+0x13e/0x147
-> #0 (console_owner){-.-.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
__lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
console_trylock_spinning kernel/printk/printk.c:2048 [inline]
vprintk_emit+0x56f/0xa40 kernel/printk/printk.c:2449
_printk+0xd5/0x120 kernel/printk/printk.c:2475
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x405/0x570 lib/fault-inject.c:174
strncpy_from_user+0x36/0x280 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]
__bpf_prog_run include/linux/filter.h:709 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline]
bpf_trace_run4+0x4db/0x5a0 kernel/trace/bpf_trace.c:2406
__bpf_trace_sched_switch+0x296/0x3d0 include/trace/events/sched.h:220
__traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:220
__do_trace_sched_switch include/trace/events/sched.h:220 [inline]
trace_sched_switch include/trace/events/sched.h:220 [inline]
__schedule+0x2910/0x5240 kernel/sched/core.c:6764
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
queue_work_on+0x26b/0x380 kernel/workqueue.c:2397
queue_work include/linux/workqueue.h:662 [inline]
schedule_work include/linux/workqueue.h:723 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:800 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:967 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0x101a/0x1500 net/netlink/af_netlink.c:569
netlink_autobind+0x221/0x2f0 net/netlink/af_netlink.c:829
netlink_sendmsg+0x79b/0xcd0 net/netlink/af_netlink.c:1846
sock_sendmsg_nosec net/socket.c:712 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:727
sock_write_iter+0x2d9/0x3f0 net/socket.c:1131
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x70f/0xd10 fs/read_write.c:684
ksys_write+0x19d/0x2d0 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 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.2.500/7519:
#0: ffff88805ea73258 (sk_lock-AF_NETLINK){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1615 [inline]
#0: ffff88805ea73258 (sk_lock-AF_NETLINK){+.+.}-{0:0}, at: netlink_insert+0xd7/0x1500 net/netlink/af_netlink.c:558
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: __rhashtable_insert_fast include/linux/rhashtable.h:722 [inline]
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rhashtable_lookup_insert_key include/linux/rhashtable.h:967 [inline]
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: __netlink_insert net/netlink/af_netlink.c:508 [inline]
#1: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: netlink_insert+0x32f/0x1500 net/netlink/af_netlink.c:569
#2: ffff8880b8739b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:605
#3: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#3: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#3: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2362 [inline]
#3: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run4+0x246/0x5a0 kernel/trace/bpf_trace.c:2406
stack backtrace:
CPU: 1 UID: 0 PID: 7519 Comm: syz.2.500 Not tainted 6.14.0-syzkaller-ga27a97f71394 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2079
check_noncircular+0x142/0x160 kernel/locking/lockdep.c:2211
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
__lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
console_trylock_spinning kernel/printk/printk.c:2048 [inline]
vprintk_emit+0x56f/0xa40 kernel/printk/printk.c:2449
_printk+0xd5/0x120 kernel/printk/printk.c:2475
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x405/0x570 lib/fault-inject.c:174
strncpy_from_user+0x36/0x280 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]
__bpf_prog_run include/linux/filter.h:709 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline]
bpf_trace_run4+0x4db/0x5a0 kernel/trace/bpf_trace.c:2406
__bpf_trace_sched_switch+0x296/0x3d0 include/trace/events/sched.h:220
__traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:220
__do_trace_sched_switch include/trace/events/sched.h:220 [inline]
trace_sched_switch include/trace/events/sched.h:220 [inline]
__schedule+0x2910/0x5240 kernel/sched/core.c:6764
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queue_work_on+0x26b/0x380 kernel/workqueue.c:2397
Code: 75 19 e8 18 4e 39 00 eb 18 e8 11 4e 39 00 e8 9c 18 a6 0a 48 83 7c 24 10 00 74 e7 e8 ff 4d 39 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37
RSP: 0018:ffffc90002f47720 EFLAGS: 00000293
RAX: ffffffff818a0981 RBX: 0000000000000000 RCX: ffff8880265b3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002f47810 R08: ffffffff818a0951 R09: 1ffffffff20bf9ee
R10: dffffc0000000000 R11: fffffbfff20bf9ef R12: 0000000000800001
R13: 0000000000000046 R14: 1ffff920005e8ee8 R15: dffffc0000000000
queue_work include/linux/workqueue.h:662 [inline]
schedule_work include/linux/workqueue.h:723 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:800 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:967 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0x101a/0x1500 net/netlink/af_netlink.c:569
netlink_autobind+0x221/0x2f0 net/netlink/af_netlink.c:829
netlink_sendmsg+0x79b/0xcd0 net/netlink/af_netlink.c:1846
sock_sendmsg_nosec net/socket.c:712 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:727
sock_write_iter+0x2d9/0x3f0 net/socket.c:1131
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x70f/0xd10 fs/read_write.c:684
ksys_write+0x19d/0x2d0 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab0ef8d169
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:00007fab0fd2f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fab0f1a5fa0 RCX: 00007fab0ef8d169
RDX: 0000000000033fe0 RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007fab0fd2f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fab0f1a5fa0 R15: 00007ffc3e9f6498
CPU: 1 UID: 0 PID: 7519 Comm: syz.2.500 Not tainted 6.14.0-syzkaller-ga27a97f71394 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x424/0x570 lib/fault-inject.c:174
strncpy_from_user+0x36/0x280 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]
__bpf_prog_run include/linux/filter.h:709 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline]
bpf_trace_run4+0x4db/0x5a0 kernel/trace/bpf_trace.c:2406
__bpf_trace_sched_switch+0x296/0x3d0 include/trace/events/sched.h:220
__traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:220
__do_trace_sched_switch include/trace/events/sched.h:220 [inline]
trace_sched_switch include/trace/events/sched.h:220 [inline]
__schedule+0x2910/0x5240 kernel/sched/core.c:6764
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queue_work_on+0x26b/0x380 kernel/workqueue.c:2397
Code: 75 19 e8 18 4e 39 00 eb 18 e8 11 4e 39 00 e8 9c 18 a6 0a 48 83 7c 24 10 00 74 e7 e8 ff 4d 39 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37
RSP: 0018:ffffc90002f47720 EFLAGS: 00000293
RAX: ffffffff818a0981 RBX: 0000000000000000 RCX: ffff8880265b3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002f47810 R08: ffffffff818a0951 R09: 1ffffffff20bf9ee
R10: dffffc0000000000 R11: fffffbfff20bf9ef R12: 0000000000800001
R13: 0000000000000046 R14: 1ffff920005e8ee8 R15: dffffc0000000000
queue_work include/linux/workqueue.h:662 [inline]
schedule_work include/linux/workqueue.h:723 [inline]
__rhashtable_insert_fast include/linux/rhashtable.h:800 [inline]
rhashtable_lookup_insert_key include/linux/rhashtable.h:967 [inline]
__netlink_insert net/netlink/af_netlink.c:508 [inline]
netlink_insert+0x101a/0x1500 net/netlink/af_netlink.c:569
netlink_autobind+0x221/0x2f0 net/netlink/af_netlink.c:829
netlink_sendmsg+0x79b/0xcd0 net/netlink/af_netlink.c:1846
sock_sendmsg_nosec net/socket.c:712 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:727
sock_write_iter+0x2d9/0x3f0 net/socket.c:1131
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x70f/0xd10 fs/read_write.c:684
ksys_write+0x19d/0x2d0 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab0ef8d169
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:00007fab0fd2f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fab0f1a5fa0 RCX: 00007fab0ef8d169
RDX: 0000000000033fe0 RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007fab0fd2f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fab0f1a5fa0 R15: 00007ffc3e9f6498
----------------
Code disassembly (best guess):
0: 75 19 jne 0x1b
2: e8 18 4e 39 00 call 0x394e1f
7: eb 18 jmp 0x21
9: e8 11 4e 39 00 call 0x394e1f
e: e8 9c 18 a6 0a call 0xaa618af
13: 48 83 7c 24 10 00 cmpq $0x0,0x10(%rsp)
19: 74 e7 je 0x2
1b: e8 ff 4d 39 00 call 0x394e1f
20: fb sti
21: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp)
28: e0 45
* 2a: 4b c7 04 37 00 00 00 movq $0x0,(%r15,%r14,1) <-- trapping instruction
31: 00
32: 43 c7 44 37 09 00 00 movl $0x0,0x9(%r15,%r14,1)
39: 00 00
3b: 66 data16
3c: 43 rex.XB
3d: c7 .byte 0xc7
3e: 44 37 rex.R (bad)