rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=965/1/0x4000000000000002 softirq=158065/158067 fqs=5249
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P18765/1:b..l
(detected by 1, t=10502 jiffies, g=210045, q=826)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18756 Comm: syz.5.13978 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:check_wait_context kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:__lock_acquire+0x664/0x7b50 kernel/locking/lockdep.c:4962
Code: 00 31 db 48 81 c3 b9 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 00 84 c0 0f 85 12 60 00 00 45 84 f6 0f 84 0d 05 00 00 0f b6 1b <48> 8b 44 24 30 42 0f b6 04 00 84 c0 0f 85 ce 60 00 00 41 f6 44 24
RSP: 0018:ffffc90003fce3e0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff815ce338
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901cb0c0
RBP: ffffc90003fce610 R08: dffffc0000000000 R09: 1ffffffff2039618
R10: dffffc0000000000 R11: fffffbfff2039619 R12: ffff88807aef29c0
R13: ffff88807aef1dc0 R14: 0000000000000002 R15: ffff88807aef29a0
FS: 00007fa210ab66c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb09ca27158 CR3: 000000005cd10000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:313
rcu_read_lock include/linux/rcupdate.h:740 [inline]
__perf_event_output kernel/events/core.c:7800 [inline]
perf_event_output_forward+0xbc/0x2e0 kernel/events/core.c:7822
__perf_event_overflow+0x35f/0x550 kernel/events/core.c:9515
perf_tp_event+0x324/0xbe0 kernel/events/core.c:10047
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 c2 22 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90003fceda0 EFLAGS: 00000206
RAX: 130411a1a2ba0c00 RBX: 1ffff920007f9db8 RCX: 130411a1a2ba0c00
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a79c980
RBP: ffffc90003fcee70 R08: ffffffff901cb0cf R09: 1ffffffff2039619
R10: dffffc0000000000 R11: fffffbfff203961a R12: ffffffff8c323400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
rcu_read_unlock+0x85/0x90 include/linux/rcupdate.h:772
mntput_no_expire+0x29c/0x770 fs/namespace.c:-1
start_creating+0x1c7/0x310 fs/debugfs/inode.c:368
debugfs_create_dir+0x21/0x4c0 fs/debugfs/inode.c:559
wiphy_register+0x2018/0x2c40 net/wireless/core.c:960
ieee80211_register_hw+0x2a03/0x3a60 net/mac80211/main.c:1308
mac80211_hwsim_new_radio+0x209d/0x4050 drivers/net/wireless/mac80211_hwsim.c:3373
hwsim_new_radio_nl+0xa7d/0xc50 drivers/net/wireless/mac80211_hwsim.c:3949
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0xd0b/0xfa0 net/netlink/genetlink.c:792
netlink_rcv_skb+0x1e9/0x430 net/netlink/af_netlink.c:2512
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x78f/0x940 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1923
sock_sendmsg_nosec net/socket.c:706 [inline]
__sock_sendmsg net/socket.c:718 [inline]
____sys_sendmsg+0x5be/0x8f0 net/socket.c:2446
___sys_sendmsg+0x236/0x2e0 net/socket.c:2500
__sys_sendmsg net/socket.c:2529 [inline]
__do_sys_sendmsg net/socket.c:2538 [inline]
__se_sys_sendmsg+0x1b7/0x2a0 net/socket.c:2536
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa21285ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa210ab6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa212ad5fa0 RCX: 00007fa21285ce59
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007fa2128f2e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa212ad6038 R14: 00007fa212ad5fa0 R15: 00007fff6a3d02f8
task:modprobe state:R running task stack:26928 pid:18765 ppid: 7098 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11c3/0x4350 kernel/sched/core.c:6395
preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6799
irqentry_exit+0x63/0x70 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:277 [inline]
RIP: 0010:path_init+0x201/0x1160 fs/namei.c:2349
Code: ed 34 0a 89 ee 83 e6 01 31 ff e8 0a 9c ac ff 89 e8 83 e0 01 75 07 e8 9e 98 ac ff eb 49 48 c7 c3 00 47 01 8c 48 c1 eb 03 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 13 8b 2d d7 ec
RSP: 0018:ffffc900031ef8f8 EFLAGS: 00000293
RAX: ffffffff81cc5a34 RBX: 1ffffffff18028e0 RCX: ffff888020a01dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 000000000001262f R08: dffffc0000000000 R09: 1ffffffff2039618
R10: dffffc0000000000 R11: fffffbfff2039619 R12: 1ffff1100cee9884
R13: ffff88806774c420 R14: 0000000000000041 R15: ffffc900031efc60
path_openat+0x19f/0x2fb0 fs/namei.c:3745
do_filp_open+0x1df/0x400 fs/namei.c:3777
do_sys_openat2+0x14b/0x500 fs/open.c:1255
do_sys_open fs/open.c:1271 [inline]
__do_sys_openat fs/open.c:1287 [inline]
__se_sys_openat fs/open.c:1282 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1282
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7931be60ba
RSP: 002b:00007fff62f903f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fff62f90470 RCX: 00007f7931be60ba
RDX: 0000000000080000 RSI: 00007fff62f90470 RDI: 00000000ffffff9c
RBP: 00007fff62f90460 R08: 00007fff62f90667 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000017
R13: 00007f7931bc2000 R14: 00007fff62f90680 R15: 0000000000000000