rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=e54c/1/0x4000000000000000 softirq=27796/27797 fqs=4568
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1033999          0            0
rcu: 	cputime:    24725      27744           88   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=18121 q=2983 ncpus=2)
CPU: 1 UID: 0 PID: 9214 Comm: syz.5.1360 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:strlen+0x2e/0x70
Code: 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 <84> c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 75 de eb 19 89
RSP: 0018:ffffc900001e09f8 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffffff8c95e080 RCX: 0000000000000100
RDX: ffffffff81ae20de RSI: ffff8881127000c8 RDI: ffffffff8c95e080
RBP: ffffc900001e0b18 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff9200003c14c
R13: ffffffff81ae20de R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f8689bb86c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8689bb7fc8 CR3: 00000000234e2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_trace_lock+0xc2/0x3b0
 lock_release+0x3b2/0x3e0
 _raw_spin_unlock+0x16/0x50
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 3f 25 df 09 e8 ba b9 35 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc9000256f478 EFLAGS: 00000286
RAX: 209d4ed8651a8500 RBX: 0000000000000000 RCX: 209d4ed8651a8500
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: ffffffff8be29f80
RBP: ffffc9000256f4d0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff8880275f0000
R13: dffffc0000000000 R14: ffff888027d38000 R15: ffff88813663ab98
 __schedule+0x16fd/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:in_gate_area_no_mm+0x0/0x60
Code: fb 41 0f 92 c6 44 89 f0 5b 41 5e 41 5f 5d e9 c7 be 3d 0a cc 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 53 48 89 fb e8 c2 78 8c 00 8b 2d fc ba 87 0c bf 02
RSP: 0018:ffffc9000256f870 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f8688d8eb69 RCX: 209d4ed8651a8501
RDX: 0000000000000000 RSI: ffffffff8db863da RDI: 00007f8688d8eb69
RBP: 0000000000000001 R08: ffffc9000256f5af R09: 0000000000000000
R10: ffffc9000256f5a0 R11: ffffffffa0000808 R12: ffff8880275f0000
R13: ffff888022b14000 R14: dffffc0000000000 R15: 1ffff920004adf22
 kernel_text_address+0x2d/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 sk_prot_alloc+0xe7/0x220
 sk_alloc+0x3a/0x370
 __netlink_create+0x65/0x260
 netlink_create+0x3ca/0x590
 __sock_create+0x4b3/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8688d8eb69
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8689bb8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8688fb6080 RCX: 00007f8688d8eb69
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 00007f8688e11df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8688fb6080 R15: 00007fffd0e15d98
 </TASK>
sched: DL replenish lagged too much
