------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.8.0-syzkaller-05271-gf99c5f563c17 #0 Not tainted
------------------------------------------------------
syz-executor477/5074 is trying to acquire lock:
ffffffff8e125be0 (console_owner){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
ffffffff8e125be0 (console_owner){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
ffffffff8e125be0 (console_owner){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
ffffffff8e125be0 (console_owner){....}-{0:0}, at: console_flush_all+0x14a/0xec0 kernel/printk/printk.c:2948
but task is already holding lock:
ffff8880b953e158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
rq_lock kernel/sched/sched.h:1699 [inline]
task_fork_fair+0x61/0x1e0 kernel/sched/fair.c:12629
sched_cgroup_fork+0x37c/0x410 kernel/sched/core.c:4845
copy_process+0x2217/0x3df0 kernel/fork.c:2498
kernel_clone+0x21e/0x8d0 kernel/fork.c:2796
user_mode_thread+0x132/0x1a0 kernel/fork.c:2874
rest_init+0x27/0x300 init/main.c:695
arch_call_rest_init+0xe/0x10 init/main.c:831
start_kernel+0x47a/0x500 init/main.c:1077
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x147
-> #3 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
__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+0x6ad/0x8a0 drivers/tty/serial/8250/8250_port.c:1835
serial8250_handle_irq+0x558/0x710 drivers/tty/serial/8250/8250_port.c:1942
serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1962
serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x28a/0xa30 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:161 [inline]
handle_irq arch/x86/kernel/irq.c:238 [inline]
__common_interrupt+0x138/0x230 arch/x86/kernel/irq.c:257
common_interrupt+0xa5/0xd0 arch/x86/kernel/irq.c:247
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+0xd8/0x140 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
uart_port_unlock_irqrestore include/linux/serial_core.h:667 [inline]
serial_port_runtime_resume+0x204/0x2b0 drivers/tty/serial/serial_port.c:41
__rpm_callback+0x2df/0x790 drivers/base/power/runtime.c:393
rpm_callback drivers/base/power/runtime.c:447 [inline]
rpm_resume+0x10b2/0x1af0 drivers/base/power/runtime.c:913
pm_runtime_work+0x147/0x210 drivers/base/power/runtime.c:978
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
-> #2 (&tty->write_wait){-...}-{2:2}:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 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+0x6ad/0x8a0 drivers/tty/serial/8250/8250_port.c:1835
serial8250_handle_irq+0x558/0x710 drivers/tty/serial/8250/8250_port.c:1942
serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1962
serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x28a/0xa30 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:161 [inline]
handle_irq arch/x86/kernel/irq.c:238 [inline]
__common_interrupt+0x138/0x230 arch/x86/kernel/irq.c:257
common_interrupt+0xa5/0xd0 arch/x86/kernel/irq.c:247
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+0xd8/0x140 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
uart_port_unlock_irqrestore include/linux/serial_core.h:667 [inline]
serial_port_runtime_resume+0x204/0x2b0 drivers/tty/serial/serial_port.c:41
__rpm_callback+0x2df/0x790 drivers/base/power/runtime.c:393
rpm_callback drivers/base/power/runtime.c:447 [inline]
rpm_resume+0x10b2/0x1af0 drivers/base/power/runtime.c:913
pm_runtime_work+0x147/0x210 drivers/base/power/runtime.c:978
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
-> #1 (&port_lock_key){-...}-{2:2}:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:616 [inline]
serial8250_console_write+0x1a8/0x1840 drivers/tty/serial/8250/8250_port.c:3403
console_emit_next_record kernel/printk/printk.c:2890 [inline]
console_flush_all+0x80b/0xec0 kernel/printk/printk.c:2956
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
_printk+0xd5/0x120 kernel/printk/printk.c:2317
register_console+0x70a/0xcd0 kernel/printk/printk.c:3531
univ8250_console_init+0x49/0x50 drivers/tty/serial/8250/8250_core.c:717
console_init+0x198/0x680 kernel/printk/printk.c:3677
start_kernel+0x2d3/0x500 init/main.c:1012
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x147
-> #0 (console_owner){....}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
console_lock_spinning_enable kernel/printk/printk.c:1843 [inline]
console_emit_next_record kernel/printk/printk.c:2884 [inline]
console_flush_all+0x7ba/0xec0 kernel/printk/printk.c:2956
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
_printk+0xd5/0x120 kernel/printk/printk.c:2317
__report_bug lib/bug.c:195 [inline]
report_bug+0x346/0x500 lib/bug.c:219
handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
spin_unlock_bh include/linux/spinlock.h:396 [inline]
sock_hash_delete_elem+0x1a6/0x300 net/core/sock_map.c:947
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x255d/0x4a20 kernel/sched/core.c:6733
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
ptrace_stop+0x5b4/0x940 kernel/signal.c:2358
ptrace_do_notify kernel/signal.c:2395 [inline]
ptrace_notify+0x255/0x380 kernel/signal.c:2407
ptrace_report_syscall include/linux/ptrace.h:415 [inline]
ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]
syscall_exit_work+0xbd/0x170 kernel/entry/common.c:167
syscall_exit_to_user_mode_prepare kernel/entry/common.c:194 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:199 [inline]
syscall_exit_to_user_mode+0x273/0x360 kernel/entry/common.c:212
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
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-executor477/5074:
#0: ffff8880b953e158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
#1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16e/0x490 kernel/trace/bpf_trace.c:2422
#2: ffffffff8e00d500 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2317
#3: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
#3: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
#3: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
#3: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: console_flush_all+0x14a/0xec0 kernel/printk/printk.c:2948
stack backtrace:
CPU: 1 PID: 5074 Comm: syz-executor477 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
console_lock_spinning_enable kernel/printk/printk.c:1843 [inline]
console_emit_next_record kernel/printk/printk.c:2884 [inline]
console_flush_all+0x7ba/0xec0 kernel/printk/printk.c:2956
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
_printk+0xd5/0x120 kernel/printk/printk.c:2317
__report_bug lib/bug.c:195 [inline]
report_bug+0x346/0x500 lib/bug.c:219
handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0010:__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Code: 3b 44 24 60 75 52 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 e9 ca fe ff ff e8 55 00 00 00 eb 9c 90 <0f> 0b 90 e9 fa fe ff ff 48 c7 c1 9c e1 86 8f 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90003a7f8c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff9200074ff1c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff895fc7a6
RBP: ffffc90003a7f980 R08: ffff88801c6bdc53 R09: 1ffff110038d7b8a
R10: dffffc0000000000 R11: ffffed10038d7b8b R12: dffffc0000000000
R13: 0000000000000006 R14: ffffc90003a7f900 R15: 0000000000000201
spin_unlock_bh include/linux/spinlock.h:396 [inline]
sock_hash_delete_elem+0x1a6/0x300 net/core/sock_map.c:947
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x255d/0x4a20 kernel/sched/core.c:6733
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
ptrace_stop+0x5b4/0x940 kernel/signal.c:2358
ptrace_do_notify kernel/signal.c:2395 [inline]
ptrace_notify+0x255/0x380 kernel/signal.c:2407
ptrace_report_syscall include/linux/ptrace.h:415 [inline]
ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]
syscall_exit_work+0xbd/0x170 kernel/entry/common.c:167
syscall_exit_to_user_mode_prepare kernel/entry/common.c:194 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:199 [inline]
syscall_exit_to_user_mode+0x273/0x360 kernel/entry/common.c:212
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f969d7e4d79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3960f5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: 0000000000000005 RBX: 0000000000000000 RCX: 00007f969d7e4d79
RDX: 0000000000000010 RSI: 0000000020000b40 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
WARNING: CPU: 1 PID: 5074 at kernel/softirq.c:362 __local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Modules linked in:
CPU: 1 PID: 5074 Comm: syz-executor477 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Code: 3b 44 24 60 75 52 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 e9 ca fe ff ff e8 55 00 00 00 eb 9c 90 <0f> 0b 90 e9 fa fe ff ff 48 c7 c1 9c e1 86 8f 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90003a7f8c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff9200074ff1c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff895fc7a6
RBP: ffffc90003a7f980 R08: ffff88801c6bdc53 R09: 1ffff110038d7b8a
R10: dffffc0000000000 R11: ffffed10038d7b8b R12: dffffc0000000000
R13: 0000000000000006 R14: ffffc90003a7f900 R15: 0000000000000201
FS: 000055557487a380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f969d85c0d0 CR3: 00000000221fe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
spin_unlock_bh include/linux/spinlock.h:396 [inline]
sock_hash_delete_elem+0x1a6/0x300 net/core/sock_map.c:947
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x255d/0x4a20 kernel/sched/core.c:6733
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
ptrace_stop+0x5b4/0x940 kernel/signal.c:2358
ptrace_do_notify kernel/signal.c:2395 [inline]
ptrace_notify+0x255/0x380 kernel/signal.c:2407
ptrace_report_syscall include/linux/ptrace.h:415 [inline]
ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]
syscall_exit_work+0xbd/0x170 kernel/entry/common.c:167
syscall_exit_to_user_mode_prepare kernel/entry/common.c:194 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:199 [inline]
syscall_exit_to_user_mode+0x273/0x360 kernel/entry/common.c:212
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f969d7e4d79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3960f5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: 0000000000000005 RBX: 0000000000000000 RCX: 00007f969d7e4d79
RDX: 0000000000000010 RSI: 0000000020000b40 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001