rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P4446/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=285717, q=72 ncpus=2)
task:udevd           state:R  running task     stack:22088 pid:4446  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6838
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6862
 preempt_schedule_thunk+0x1a/0x20 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
 dput+0x312/0x420 fs/dcache.c:900
 step_into+0x355/0x1080 fs/namei.c:1851
 walk_component fs/namei.c:2004 [inline]
 link_path_walk+0x735/0xe70 fs/namei.c:2325
 path_lookupat+0xa9/0x450 fs/namei.c:2478
 filename_lookup+0x255/0x610 fs/namei.c:2508
 user_path_at_empty+0x44/0x180 fs/namei.c:2907
 do_readlinkat+0x118/0x3b0 fs/stat.c:477
 __do_sys_readlink fs/stat.c:510 [inline]
 __se_sys_readlink fs/stat.c:507 [inline]
 __x64_sys_readlink+0x7f/0x90 fs/stat.c:507
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe4b2f17d47
RSP: 002b:00007ffc29d6ec38 EFLAGS: 00000246 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00007ffc29d6ec48 RCX: 00007fe4b2f17d47
RDX: 0000000000000400 RSI: 00007ffc29d6ec48 RDI: 00007ffc29d6f128
RBP: 0000000000000400 R08: 000055b60433aa04 R09: 0000000000000000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007ffc29d6f128
R13: 00007ffc29d6f098 R14: 000055b604326910 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g285717 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=195291
rcu: rcu_preempt kthread starved for 10502 jiffies! g285717 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:26520 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9368 Comm: syz-executor.0 Not tainted 6.4.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:lock_is_held_type+0x51/0x190 kernel/locking/lockdep.c:5755
Code: f8 04 a7 03 00 0f 84 00 01 00 00 65 8b 05 0f 96 53 75 85 c0 0f 85 f1 00 00 00 65 4c 8b 2d c7 c4 54 75 41 83 bd c4 0a 00 00 00 <0f> 85 db 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f
RSP: 0018:ffffc90000007c48 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888095c6bb80
RDX: ffff888095c6bb80 RSI: 00000000ffffffff RDI: ffff8881417e9300
RBP: 00000000ffffffff R08: ffffffff88d20ea7 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888095c6bb80 R14: ffff8881417e9340 R15: ffff888035fb8800
FS:  00007fa5a7645700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6b00da8000 CR3: 000000008dc8f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:288 [inline]
 advance_sched+0x14e/0xc80 net/sched/sch_taprio.c:932
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x59f/0xd10 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 aa 65 b2 f6 48 89 df e8 b2 a5 b3 f6 e8 fd 5e d9 f6 fb bf 01 00 00 00 <e8> f2 29 a6 f6 65 8b 05 63 e5 4a 75 85 c0 74 02 5b c3 e8 b0 c2 47
RSP: 0018:ffffc900152cfc50 EFLAGS: 00000282
RAX: 412b9f835e257100 RBX: ffff888091d7c0c0 RCX: ffffffff91b20103
RDX: dffffc0000000000 RSI: ffffffff8aea8c80 RDI: 0000000000000001
RBP: ffffc900152cfd90 R08: dffffc0000000000 R09: fffffbfff1cab866
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888095c6c4a0
R13: ffff888095c6bb80 R14: 0000000000000009 R15: ffff888095c6bb80
 spin_unlock_irq include/linux/spinlock.h:400 [inline]
 get_signal+0x138e/0x17e0 kernel/signal.c:2839
 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa5a688c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007fa5a7645218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa5a69ac058 RCX: 00007fa5a688c169
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa5a69ac058
RBP: 00007fa5a69ac050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa5a69ac05c
R13: 00007fff2b7fcf0f R14: 00007fa5a7645300 R15: 0000000000022000
 </TASK>