rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3938/1:b..l.. P3964/1:b..l..
rcu: (detected by 0, t=10502 jiffies, g=297841, q=877684 ncpus=1)
task:syz.7.7496 state:R running task stack:25464 pid:3964 tgid:3962 ppid:544 task_flags:0x40054c flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7561
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0xe9/0x140 kernel/softirq.c:480
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_mlme_unregister_socket+0x2c8/0x650 net/wireless/mlme.c:823
nl80211_netlink_notify+0x35d/0x860 net/wireless/nl80211.c:23893
notifier_call_chain+0x1a5/0x3d0 kernel/notifier.c:86
blocking_notifier_call_chain+0x6a/0x90 kernel/notifier.c:485
netlink_release+0x1211/0x1a90 net/netlink/af_netlink.c:759
__sock_release+0xa0/0x1f0 net/socket.c:735
sock_close+0x1c/0x30 net/socket.c:1529
__fput+0x408/0xa40 fs/file_table.c:513
fput_close_sync+0x11f/0x240 fs/file_table.c:619
filp_close_sync+0x6e/0xa0 fs/open.c:1897
close_files fs/file.c:572 [inline]
put_files_struct+0x230/0x3c0 fs/file.c:584
do_exit+0x6f0/0x2360 kernel/exit.c:977
do_group_exit+0x22d/0x2f0 kernel/exit.c:1123
get_signal+0x1216/0x12c0 kernel/signal.c:3112
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+0x10e/0x770 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:343 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb69e59f559
RSP: 002b:00007fb69f39a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 0000200000000000 RBX: 00007fb69e825fa0 RCX: 00007fb69e59f559
RDX: b635773f07ebbee7 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fb69e636b20 R08: ffffffffffffffff R09: 000000009c7ab000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb69e826038 R14: 00007fb69e825fa0 R15: 00007ffdde104e78
task:syz.9.7497 state:R running task stack:26264 pid:3938 tgid:3937 ppid:31686 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947
Code: ff ff ff e8 a0 83 5f 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 a2 cd 3c 13 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 bf 96 62 0a cc 48 8d 3d 47 f8 1c
RSP: 0018:ffffc90005dc7220 EFLAGS: 00000292
RAX: 376b567a09f4fa00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 000000000de1b739 RSI: ffffffff8e932d08 RDI: ffffffff8c8ea080
RBP: ffff888032288000 R08: ffffffff8178798f R09: 0000000000000000
R10: ffffc90005dc7358 R11: ffffffff81b3ad40 R12: ffffffff9015a4a0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:351 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:377
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4720 [inline]
slab_alloc_node mm/slub.c:5033 [inline]
kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5047
kmem_alloc_batch lib/debugobjects.c:371 [inline]
fill_pool+0x163/0x610 lib/debugobjects.c:420
debug_objects_fill_pool lib/debugobjects.c:780 [inline]
debug_object_activate+0x38d/0x420 lib/debugobjects.c:869
debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline]
rcu_do_enqueue+0x2a/0x870 kernel/rcu/tree.c:3164
__call_rcu_common kernel/rcu/tree.c:3300 [inline]
call_rcu+0x20e/0x300 kernel/rcu/tree.c:3395
slab_free_hook mm/slub.c:2744 [inline]
slab_free mm/slub.c:6630 [inline]
kmem_cache_free+0x471/0x650 mm/slub.c:6757
__io_req_caches_free+0x1be/0x270 io_uring/io_uring.c:2275
io_queue_deferred+0x83/0x540 io_uring/io_uring.c:482
__io_submit_flush_completions+0x1318/0x1520 io_uring/io_uring.c:1266
io_submit_flush_completions io_uring/io_uring.h:254 [inline]
io_submit_state_end io_uring/io_uring.c:2074 [inline]
io_submit_sqes+0x1eeb/0x2500 io_uring/io_uring.c:2198
__do_sys_io_uring_enter io_uring/io_uring.c:2870 [inline]
__se_sys_io_uring_enter+0x35b/0x1bb0 io_uring/io_uring.c:2819
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e0919f559
RSP: 002b:00007f4e0a101f38 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 0000200000000940 RCX: 00007f4e0919f559
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: 00000000000003d4 R08: 0000000000000000 R09: 0000000000000008
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000580
R13: 0000200000000588 R14: 0000000000000e26 R15: 0000000000000000