================================
WARNING: inconsistent lock state
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
--------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
syz-executor.1/5268 [HC0[0]:SC0[0]:HE0:SE1] takes:
ffff8880b943e6d8 (&rq->__lock){?.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
{IN-HARDIRQ-W} state was registered at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
rq_lock kernel/sched/sched.h:1699 [inline]
scheduler_tick+0xa2/0x650 kernel/sched/core.c:5679
update_process_times+0x199/0x220 kernel/time/timer.c:2481
tick_periodic+0x7e/0x230 kernel/time/tick-common.c:100
tick_handle_periodic+0x45/0x120 kernel/time/tick-common.c:112
timer_interrupt+0x4e/0x80 arch/x86/kernel/time.c:57
__handle_irq_event_percpu+0x22c/0x750 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+0x263/0xd10 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+0xe1/0x250 arch/x86/kernel/irq.c:257
common_interrupt+0xab/0xd0 arch/x86/kernel/irq.c:247
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2979
console_unlock+0xae/0x290 kernel/printk/printk.c:3042
vprintk_emit kernel/printk/printk.c:2342 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2367
spectre_v1_select_mitigation arch/x86/kernel/cpu/bugs.c:951 [inline]
cpu_select_mitigations+0x1223/0x4020 arch/x86/kernel/cpu/bugs.c:148
arch_cpu_finalize_init+0xe8/0x170 arch/x86/kernel/cpu/common.c:2325
start_kernel+0x32b/0x490 init/main.c:1043
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148
irq event stamp: 3868
hardirqs last enabled at (3865): [<ffffffff8ad33eab>] irqentry_exit+0x3b/0x90 kernel/entry/common.c:351
hardirqs last disabled at (3866): [<ffffffff8ad577f4>] __schedule+0x2644/0x5c70 kernel/sched/core.c:6634
softirqs last enabled at (3868): [<ffffffff88cc194d>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last enabled at (3868): [<ffffffff88cc194d>] __sock_map_delete net/core/sock_map.c:424 [inline]
softirqs last enabled at (3868): [<ffffffff88cc194d>] sock_map_delete_elem+0xfd/0x150 net/core/sock_map.c:446
softirqs last disabled at (3867): [<ffffffff88cc1918>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (3867): [<ffffffff88cc1918>] __sock_map_delete net/core/sock_map.c:414 [inline]
softirqs last disabled at (3867): [<ffffffff88cc1918>] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&rq->__lock
);
<Interrupt>
lock(&rq->__lock
);
*** DEADLOCK ***
4 locks held by syz-executor.1/5268:
#0: ffff88801506b120
(&mm->mmap_lock
){++++}-{3:3}
, at: mmap_write_lock include/linux/mmap_lock.h:108 [inline]
, at: exit_mmap+0x203/0xb60 mm/mmap.c:3295
#1: ffffffff8d7b49e0
(rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
, at: page_ext_get+0x34/0x310 mm/page_ext.c:508
#2: ffff8880b943e6d8
(&rq->__lock
){?.-.}-{2:2}
, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
#3: ffffffff8d7b49e0
(rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
, at: bpf_trace_run4+0x107/0x460 kernel/trace/bpf_trace.c:2422
stack backtrace:
CPU: 0 PID: 5268 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_usage_bug kernel/locking/lockdep.c:3971 [inline]
valid_state kernel/locking/lockdep.c:4013 [inline]
mark_lock_irq kernel/locking/lockdep.c:4216 [inline]
mark_lock+0x923/0xc60 kernel/locking/lockdep.c:4678
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4274
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4292 [inline]
lockdep_hardirqs_on_prepare+0x137/0x420 kernel/locking/lockdep.c:4359
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
__local_bh_enable_ip+0xa4/0x120 kernel/softirq.c:387
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__sock_map_delete net/core/sock_map.c:424 [inline]
sock_map_delete_elem+0xfd/0x150 net/core/sock_map.c:446
bpf_prog_8c0e092b1e199972+0x63/0x6b
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+0x179/0x460 kernel/trace/bpf_trace.c:2422
__bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
__traceiter_sched_switch+0x6f/0xc0 include/trace/events/sched.h:222