------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.167-syzkaller #0 Not tainted
------------------------------------------------------
syz.2.33/3783 is trying to acquire lock:
ffffffff8c9147e0 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable+0x2c/0x60 kernel/printk/printk.c:1802
but task is already holding lock:
ffff8880b9028098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #5 (&base->lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
lock_timer_base+0x120/0x260 kernel/time/timer.c:946
__mod_timer+0x1d6/0xeb0 kernel/time/timer.c:1019
queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
psi_enqueue kernel/sched/stats.h:104 [inline]
enqueue_task+0x2fe/0x3a0 kernel/sched/core.c:1970
activate_task kernel/sched/core.c:2002 [inline]
wake_up_new_task+0x515/0xb60 kernel/sched/core.c:4519
kernel_clone+0x44e/0x960 kernel/fork.c:2628
kernel_thread+0x168/0x1e0 kernel/fork.c:2656
rest_init+0x21/0x330 init/main.c:706
start_kernel+0x48c/0x540 init/main.c:1140
secondary_startup_64_no_verify+0xb1/0xbb
-> #4 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
rq_lock kernel/sched/sched.h:1621 [inline]
task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11484
sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4463
copy_process+0x224a/0x3ef0 kernel/fork.c:2320
kernel_clone+0x210/0x960 kernel/fork.c:2604
kernel_thread+0x168/0x1e0 kernel/fork.c:2656
rest_init+0x21/0x330 init/main.c:706
start_kernel+0x48c/0x540 init/main.c:1140
secondary_startup_64_no_verify+0xb1/0xbb
-> #3 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4027
__wake_up_common+0x2a0/0x4e0 kernel/sched/wait.c:108
__wake_up_common_lock kernel/sched/wait.c:138 [inline]
__wake_up+0x112/0x1c0 kernel/sched/wait.c:157
tty_port_default_wakeup+0xa8/0x100 drivers/tty/tty_port.c:51
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq+0x505/0x600 drivers/tty/serial/8250/8250_port.c:1924
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1941
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x292/0xa70 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0xff/0x2b0 kernel/irq/handle.c:213
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819
generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
handle_irq arch/x86/kernel/irq.c:231 [inline]
__common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:250
common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
strlen+0x4/0x60 lib/string.c:563
nla_put_string+0x1a/0x30 include/net/netlink.h:1477
ctrl_fill_info+0xf44/0x1560 net/netlink/genetlink.c:885
ctrl_build_family_msg net/netlink/genetlink.c:980 [inline]
ctrl_getfamily+0x4a4/0x690 net/netlink/genetlink.c:1056
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0xfbd/0x14a0 net/netlink/genetlink.c:792
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2503
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1352
netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1920
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2431
___sys_sendmsg+0x252/0x2e0 net/socket.c:2485
__sys_sendmsg net/socket.c:2514 [inline]
__do_sys_sendmsg net/socket.c:2523 [inline]
__se_sys_sendmsg+0x19a/0x260 net/socket.c:2521
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #2 (&tty->write_wait){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
__wake_up_common_lock kernel/sched/wait.c:137 [inline]
__wake_up+0xf5/0x1c0 kernel/sched/wait.c:157
tty_port_default_wakeup+0xa8/0x100 drivers/tty/tty_port.c:51
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq+0x505/0x600 drivers/tty/serial/8250/8250_port.c:1924
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1941
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x292/0xa70 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0xff/0x2b0 kernel/irq/handle.c:213
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819
generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
handle_irq arch/x86/kernel/irq.c:231 [inline]
__common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:250
common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
uart_write+0x6af/0x930 drivers/tty/serial/serial_core.c:590
process_output_block drivers/tty/n_tty.c:592 [inline]
n_tty_write+0xd7e/0x1280 drivers/tty/n_tty.c:2339
do_tty_write drivers/tty/tty_io.c:1038 [inline]
file_tty_write+0x561/0x920 drivers/tty/tty_io.c:1110
call_write_iter include/linux/fs.h:2172 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacd/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #1 (&port_lock_key){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
serial8250_console_write+0x19d/0x1180 drivers/tty/serial/8250/8250_port.c:3354
console_unlock+0xced/0x12b0 kernel/printk/printk.c:2744
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
register_console+0x65a/0x940 kernel/printk/printk.c:3107
univ8250_console_init+0x41/0x50 drivers/tty/serial/8250/8250_core.c:690
console_init+0x18c/0x660 kernel/printk/printk.c:3207
start_kernel+0x301/0x540 init/main.c:1076
secondary_startup_64_no_verify+0xb1/0xbb
-> #0 (console_owner){-.-.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
console_lock_spinning_enable+0x51/0x60 kernel/printk/printk.c:1805
console_unlock+0xa47/0x12b0 kernel/printk/printk.c:2741
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
copy_from_user_nofault+0x15c/0x1c0
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0xa50
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
queue_delayed_work include/linux/workqueue.h:527 [inline]
srcu_funnel_gp_start kernel/rcu/srcutree.c:682 [inline]
srcu_gp_start_if_needed+0x5dc/0x8f0 kernel/rcu/srcutree.c:838
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
__text_poke+0x84c/0x9e0 arch/x86/kernel/alternative.c:1154
text_poke arch/x86/kernel/alternative.c:1178 [inline]
text_poke_bp_batch+0x64f/0x930 arch/x86/kernel/alternative.c:1485
text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1605
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
tracepoint_add_func+0x947/0x9d0 kernel/tracepoint.c:361
tracepoint_probe_register_prio_may_exist+0x11e/0x190 kernel/tracepoint.c:482
bpf_raw_tracepoint_open+0x65a/0x750 kernel/bpf/syscall.c:3113
__sys_bpf+0x468/0x670 kernel/bpf/syscall.c:4693
__do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
other info that might help us debug this:
Chain exists of:
console_owner --> &rq->__lock --> &base->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&base->lock);
lock(&rq->__lock);
lock(&base->lock);
lock(console_owner);
*** DEADLOCK ***
11 locks held by syz.2.33/3783:
#0: ffffffff8c95f9e8 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xb7/0x190 kernel/tracepoint.c:478
#1: ffffffff8c7bd4d0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_enable+0xe/0x20 kernel/jump_label.c:189
#2: ffffffff8c9acde8 (jump_label_mutex){+.+.}-{3:3}, at: jump_label_lock kernel/jump_label.c:27 [inline]
#2: ffffffff8c9acde8 (jump_label_mutex){+.+.}-{3:3}, at: static_key_enable_cpuslocked+0xcf/0x250 kernel/jump_label.c:174
#3: ffffffff8c7d51c8 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0xe/0x20 arch/x86/kernel/jump_label.c:145
#4: ffff888017066078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:363 [inline]
#4: ffff888017066078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: __get_locked_pte+0x169/0x1c0 mm/memory.c:1749
#5: ffffffff8c91fd20 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire+0x0/0x20
#6: ffffffff8c95f858 (tracepoint_srcu){....}-{0:0}, at: rcu_lock_acquire+0x0/0x20
#7: ffffffff8c95f5d0 (tracepoint_srcu.lock){..-.}-{2:2}, at: srcu_funnel_gp_start kernel/rcu/srcutree.c:665 [inline]
#7: ffffffff8c95f5d0 (tracepoint_srcu.lock){..-.}-{2:2}, at: srcu_gp_start_if_needed+0x460/0x8f0 kernel/rcu/srcutree.c:838
#8: ffff8880b9028098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946
#9: ffffffff8c91fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#10: ffffffff8c7fc520 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
stack backtrace:
CPU: 0 PID: 3783 Comm: syz.2.33 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
console_lock_spinning_enable+0x51/0x60 kernel/printk/printk.c:1805
console_unlock+0xa47/0x12b0 kernel/printk/printk.c:2741
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 eb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000007768 EFLAGS: 00010046
RAX: ffffffff81aa939c RBX: 0000000000000000 RCX: ffff888029d45940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa92ad R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc900000077c8
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0xa50
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
queue_delayed_work include/linux/workqueue.h:527 [inline]
srcu_funnel_gp_start kernel/rcu/srcutree.c:682 [inline]
srcu_gp_start_if_needed+0x5dc/0x8f0 kernel/rcu/srcutree.c:838
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__text_poke+0x84c/0x9e0 arch/x86/kernel/alternative.c:1154
Code: e8 9b 00 f6 84 24 01 01 00 00 02 0f 85 a8 00 00 00 41 f7 c7 00 02 00 00 48 8b 5c 24 58 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 8b 4c 24 50 80 3c 01 00 74 0d 48 8d bc 24 40 01 00 00 e8 1c e8
RSP: 0018:ffffc90002f277a0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920005e4f00 RCX: ffffffff81631ae8
RDX: dffffc0000000000 RSI: ffffffff8a8b2b00 RDI: ffffffff8ad904c0
RBP: ffffc90002f27950 R08: dffffc0000000000 R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff816f0edf
R13: ffff888029d45940 R14: ffffc90002f278a0 R15: 0000000000000246
text_poke arch/x86/kernel/alternative.c:1178 [inline]
text_poke_bp_batch+0x64f/0x930 arch/x86/kernel/alternative.c:1485
text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1605
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
tracepoint_add_func+0x947/0x9d0 kernel/tracepoint.c:361
tracepoint_probe_register_prio_may_exist+0x11e/0x190 kernel/tracepoint.c:482
bpf_raw_tracepoint_open+0x65a/0x750 kernel/bpf/syscall.c:3113
__sys_bpf+0x468/0x670 kernel/bpf/syscall.c:4693
__do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f21b1ea3ef9
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:00007f21b031c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f21b205bf80 RCX: 00007f21b1ea3ef9
RDX: 0000000000000010 RSI: 0000000020000a40 RDI: 0000000000000011
RBP: 00007f21b1f16b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f21b205bf80 R15: 00007ffc67c7e1d8
WARNING: CPU: 0 PID: 3783 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 0 PID: 3783 Comm: syz.2.33 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 eb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000007768 EFLAGS: 00010046
RAX: ffffffff81aa939c RBX: 0000000000000000 RCX: ffff888029d45940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa92ad R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc900000077c8
FS: 00007f21b031c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000079776000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0xa50
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
queue_delayed_work include/linux/workqueue.h:527 [inline]
srcu_funnel_gp_start kernel/rcu/srcutree.c:682 [inline]
srcu_gp_start_if_needed+0x5dc/0x8f0 kernel/rcu/srcutree.c:838
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__text_poke+0x84c/0x9e0 arch/x86/kernel/alternative.c:1154
Code: e8 9b 00 f6 84 24 01 01 00 00 02 0f 85 a8 00 00 00 41 f7 c7 00 02 00 00 48 8b 5c 24 58 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 8b 4c 24 50 80 3c 01 00 74 0d 48 8d bc 24 40 01 00 00 e8 1c e8
RSP: 0018:ffffc90002f277a0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920005e4f00 RCX: ffffffff81631ae8
RDX: dffffc0000000000 RSI: ffffffff8a8b2b00 RDI: ffffffff8ad904c0
RBP: ffffc90002f27950 R08: dffffc0000000000 R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff816f0edf
R13: ffff888029d45940 R14: ffffc90002f278a0 R15: 0000000000000246
text_poke arch/x86/kernel/alternative.c:1178 [inline]
text_poke_bp_batch+0x64f/0x930 arch/x86/kernel/alternative.c:1485
text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1605
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
tracepoint_add_func+0x947/0x9d0 kernel/tracepoint.c:361
tracepoint_probe_register_prio_may_exist+0x11e/0x190 kernel/tracepoint.c:482
bpf_raw_tracepoint_open+0x65a/0x750 kernel/bpf/syscall.c:3113
__sys_bpf+0x468/0x670 kernel/bpf/syscall.c:4693
__do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f21b1ea3ef9
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:00007f21b031c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f21b205bf80 RCX: 00007f21b1ea3ef9
RDX: 0000000000000010 RSI: 0000000020000a40 RDI: 0000000000000011
RBP: 00007f21b1f16b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f21b205bf80 R15: 00007ffc67c7e1d8
----------------
Code disassembly (best guess):
0: e8 9b 00 f6 84 call 0x84f600a0
5: 24 01 and $0x1,%al
7: 01 00 add %eax,(%rax)
9: 00 02 add %al,(%rdx)
b: 0f 85 a8 00 00 00 jne 0xb9
11: 41 f7 c7 00 02 00 00 test $0x200,%r15d
18: 48 8b 5c 24 58 mov 0x58(%rsp),%rbx
1d: 74 01 je 0x20
1f: fb sti
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 48 8b 4c 24 50 mov 0x50(%rsp),%rcx <-- trapping instruction
2f: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1)
33: 74 0d je 0x42
35: 48 8d bc 24 40 01 00 lea 0x140(%rsp),%rdi
3c: 00
3d: e8 .byte 0xe8
3e: 1c e8 sbb $0xe8,%al