rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (8706 ticks this GP) idle=3b6c/1/0x4000000000000000 softirq=89086/89093 fqs=5213
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   935657         15            0
rcu: 	cputime:    33672      18806           53   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=88861 q=1439 ncpus=2)
CPU: 0 UID: 0 PID: 20190 Comm: syz.0.5735 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410-dirty #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:lock_acquire+0x70/0x360
Code: f8 08 0f 83 b8 01 00 00 89 c0 48 0f a3 05 18 23 06 0e 73 16 e8 61 02 09 00 84 c0 75 0d f6 05 77 09 f0 0d 01 0f 84 d7 01 00 00 <83> 3d 39 54 06 0e 00 0f 84 f0 00 00 00 48 8b b4 24 90 00 00 00 4c
RSP: 0018:ffffc90000007698 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 44a3a71b6af6d000
RDX: 0000000000000000 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: ffffffff8172c195 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff81ac3890 R12: 0000000000000002
R13: ffffffff8e139ee0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f5315bd56c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000012d0 CR3: 0000000029c7e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000602
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 slab_free_after_rcu_debug+0x129/0x2a0
 rcu_core+0xcab/0x1770
 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:__asan_memset+0x5/0x50
Code: 01 00 00 00 e9 bc e4 ff ff 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01 00
RSP: 0018:ffffc90004ed6e50 EFLAGS: 00000246
RAX: f2f200f2f2f2f2f2 RBX: ffff88801fa91cc0 RCX: 1ffff920009dadec
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90004ed6ff0
RBP: ffffc90004ed7070 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: 1ffff920009dae10
 __schedule+0xb9/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:qlist_free_all+0x46/0x140
Code: 45 31 ed 49 89 ef 4d 89 f4 4d 85 f6 75 40 4c 8b 25 67 34 9a 0b 4c 89 ff e8 67 55 51 ff 48 c1 e8 06 48 83 e0 c0 49 8b 4c 04 08 <f6> c1 01 75 53 49 01 c4 0f 1f 44 00 00 41 0f b6 44 24 33 c1 e0 18
RSP: 0018:ffffc90004ed71f8 EFLAGS: 00000206
RAX: 0000000000d10b00 RBX: ffffc90004ed7230 RCX: ffff888100ab9a00
RDX: ffffc9002e4c7000 RSI: 0000000000000d5d RDI: 0000000000000d5e
RBP: ffff88803442c000 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffffea0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88803442c000
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 __kmalloc_cache_noprof+0x1be/0x3d0
 genl_start+0x1c9/0x6c0
 __netlink_dump_start+0x469/0x7e0
 genl_family_rcv_msg_dumpit+0x1e7/0x2c0
 genl_rcv_msg+0x5da/0x790
 netlink_rcv_skb+0x208/0x470
 genl_rcv+0x28/0x40
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __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: 0033:0x7f531798ebe9
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:00007f5315bd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5317bb6090 RCX: 00007f531798ebe9
RDX: 0000000004000010 RSI: 0000200000000200 RDI: 0000000000000045
RBP: 00007f5317a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5317bb6128 R14: 00007f5317bb6090 R15: 00007ffe512ad5d8
 </TASK>
