rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=54bc/1/0x4000000000000000 softirq=130821/130822 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1177879          0            0
rcu: 	cputime:    25889      26600           77   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=123805 q=1294 ncpus=2)
CPU: 1 UID: 0 PID: 4288 Comm: syz.0.13551 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10-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:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 b2 e8 f2 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001e05a0 EFLAGS: 00000206
RAX: b920fe19b102dd00 RBX: 1ffff9200003c0bc RCX: b920fe19b102dd00
RDX: 0000000000000000 RSI: ffffffff8d9792eb RDI: ffffffff8be30a00
RBP: ffffc900001e0698 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffffffff8e141800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007f550021f6c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3391fffc CR3: 0000000120644000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __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_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:stack_depot_save_flags+0x168/0x900
Code: c8 31 c5 c1 c0 18 29 c5 48 8b 05 73 f9 db 14 8b 0d 65 f9 db 14 21 e9 48 c1 e1 04 4c 8d 3c 08 65 ff 05 dc 10 9e 0d 4c 8b 24 08 <4d> 39 fc 0f 84 88 00 00 00 45 89 d5 eb 2d 90 0f 0b 90 31 c0 e9 ce
RSP: 0018:ffffc9000416edf8 EFLAGS: 00000282
RAX: ffff888135400000 RBX: 0000000000400cc0 RCX: 0000000000baff70
RDX: 0000000079523c15 RSI: 0000000000000001 RDI: 00000000a4ce5097
RBP: 0000000072fbaff7 R08: 00000000453edbcc R09: 00000000fe7796f2
R10: 000000000000000d R11: ffffffff81ac3450 R12: ffff88812399e500
R13: 0000000000000060 R14: ffffc9000416ee70 R15: ffff888135faff70
 kasan_save_track+0x4f/0x80
 __kasan_krealloc+0xe7/0x140
 krealloc_noprof+0x1b8/0x340
 copy_array+0x63/0xf0
 copy_verifier_state+0xaf/0xf10
 do_check+0x9a32/0xe520
 do_check_common+0x1918/0x2470
 bpf_check+0x1746a/0x1d2d0
 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: 0033:0x7f54ff38eb69
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:00007f550021f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f54ff5b5fa0 RCX: 00007f54ff38eb69
RDX: 0000000000000048 RSI: 00002000000054c0 RDI: 0000000000000005
RBP: 00007f54ff411df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f54ff5b5fa0 R15: 00007ffe99d6a418
 </TASK>
