rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=23c4/1/0x4000000000000000 softirq=26016/26016 fqs=4484
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1037760          0            0
rcu: 	cputime:    25248      27221           90   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=15109 q=2865 ncpus=2)
CPU: 0 UID: 0 PID: 8695 Comm: syz.1.1251 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:unwind_get_return_address+0x0/0x90
Code: f7 49 89 f7 e8 61 98 b0 00 4c 89 f7 4c 89 fe e9 29 ff ff ff e8 11 df fb 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900000077a0 EFLAGS: 00000202
RAX: 0000000000007701 RBX: ffffc90000007860 RCX: e61fab87d740ef00
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: ffffc900000077a8
RBP: ffffc90000007830 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888106a31cc0
R13: 0000000000000000 R14: ffffffff81acf520 R15: ffffc900000077a8
FS:  00007f10b21f66c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000265be000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kfree+0x18e/0x440
 slab_free_after_rcu_debug+0x60/0x2a0
 rcu_core+0xca8/0x1710
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 9b 93 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e3 c1 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000274eec0 EFLAGS: 00000206
RAX: e61fab87d740ef00 RBX: 0000000000000246 RCX: e61fab87d740ef00
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: 0000000000000001
RBP: ffffc9000274ef50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffffffff8e144480 R14: ffffffff8e144440 R15: 1ffff920004e9dd8
 rcu_preempt_deferred_qs_irqrestore+0x851/0xc40
 rcu_read_unlock_special+0x3fe/0x4c0
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 skb_clone+0x212/0x3a0
 pfkey_broadcast_one+0x9b/0x360
 pfkey_broadcast+0x3a9/0x3e0
 pfkey_sendmsg+0xdd8/0x1090
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10b438eb69
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:00007f10b21f6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f10b45b5fa0 RCX: 00007f10b438eb69
RDX: 0000000000000000 RSI: 0000200000003780 RDI: 000000000000000c
RBP: 00007f10b4411df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f10b45b5fa0 R15: 00007ffc62319258
 </TASK>
sched: DL replenish lagged too much
