rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=545c/1/0x4000000000000000 softirq=31494/31494 fqs=5237
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   970399          0            0
rcu: 	cputime:    33841      18658           97   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=26969 q=771 ncpus=2)
CPU: 1 UID: 0 PID: 10614 Comm: syz.1.1393 Not tainted syzkaller #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:handle_softirqs+0x1b0/0x870
Code: 89 64 24 30 0f b7 db 48 c7 c7 20 a7 89 8b e8 b7 76 f4 09 65 66 c7 05 65 54 1b 11 00 00 e8 08 6a 42 00 fb 49 c7 c7 c0 c0 e0 8d <b8> ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc900001e0e40 EFLAGS: 00000286
RAX: 2fb7897ff614a800 RBX: 0000000000000282 RCX: 2fb7897ff614a800
RDX: 0000000000000003 RSI: ffffffff8d9b6a7d RDI: ffffffff8be33300
RBP: ffffc900001e0f50 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8de0c0c0
FS:  00007f1b0edf66c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558323953cc0 CR3: 000000010d840000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __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:__slab_free+0xe/0x3c0
Code: 0f 0b 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 55 41 57 41 56 41 55 41 54 53 48 83 ec 50 <48> 89 54 24 10 49 89 fe 65 48 8b 05 62 69 87 10 48 89 44 24 48 44
RSP: 0018:ffffc9000267f320 EFLAGS: 00000282
RAX: ffff8881a3c1c000 RBX: ffffc9000267f3e0 RCX: ffff888045d1a340
RDX: ffff888045d1a340 RSI: ffffea0001174680 RDI: ffff88801a441780
RBP: ffff88810e2e6c80 R08: 0000000000000001 R09: ffffffff822333fc
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: ffff88801a441780
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888045d1a340
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_kmalloc+0x22/0xb0
 __kvmalloc_node_noprof+0x30d/0x5f0
 compute_scc+0xe8d/0xfa0
 bpf_check+0x173f6/0x1d2e0
 bpf_prog_load+0x1318/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1b10b8eba9
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:00007f1b0edf6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1b10dd5fa0 RCX: 00007f1b10b8eba9
RDX: 0000000000000048 RSI: 0000200000000080 RDI: 0000000000000005
RBP: 00007f1b10c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1b10dd6038 R14: 00007f1b10dd5fa0 R15: 00007fff99c30c88
 </TASK>
