rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (3 ticks this GP) idle=db5/1/0x4000000000000000 softirq=8929/8929 fqs=2092 
	(detected by 1, t=10506 jiffies, g=9977, q=1520)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5092 Comm: dhcpcd-run-hook Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:mark_lock+0xe2/0x320 kernel/locking/lockdep.c:4569
Code: 03 42 0f b6 04 28 84 c0 0f 85 06 02 00 00 83 3d 03 f6 cf 14 00 74 36 45 31 ff 49 83 c7 50 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 ff e8 d4 72 60 00 b8 01 00 00 00 45 85 27 74 50 48 83
RSP: 0018:ffffc900000078c0 EFLAGS: 00000046
RAX: 1ffffffff1f6c12a RBX: ffff88807b6cbb80 RCX: ffffffff815db944
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901d40c8
RBP: 0000000000000000 R08: ffffffff901d40cf R09: 1ffffffff203a819
R10: dffffc0000000000 R11: fffffbfff203a81a R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88807b6cc6c0 R15: ffffffff8fb60950
FS:  00007f996097dc80(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9960bd2286 CR3: 0000000069e46000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4483 [inline]
 __lock_acquire+0xc20/0x7d10 kernel/locking/lockdep.c:4966
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
 _raw_spin_lock_irq+0xab/0xf0 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5a9/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:jhash2 include/linux/jhash.h:127 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:180 [inline]
RIP: 0010:stack_depot_save+0x5d/0x440 lib/stackdepot.c:272
Code: 5a 12 00 0f 85 51 01 00 00 89 f3 44 8d 0c 1b 8d 2c dd 7b 71 f5 75 41 83 f9 04 0f 82 83 00 00 00 89 e9 89 ee 49 89 f8 41 03 30 <41> 03 48 04 41 03 68 08 41 89 ea 41 c1 c2 04 29 ee 41 31 f2 01 cd
RSP: 0018:ffffc9000352f730 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00000000ae6a851a
RDX: 0000000000000cc0 RSI: 00000000ed397afe RDI: ffffc9000352f790
RBP: 00000000054e451b R08: ffffc9000352f7b4 R09: 0000000000000013
R10: 00000000ae87ad31 R11: 00000000a0d9a757 R12: ffff88807d4fd400
R13: ffff888140007500 R14: 00000000165ee4a7 R15: ffffc9000352f790
 kasan_save_stack mm/kasan/common.c:40 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0xb3/0xd0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3225 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
 getname_kernel+0x56/0x2e0 fs/namei.c:226
 kern_path+0x1f/0x190 fs/namei.c:2589
 tomoyo_realpath_nofollow+0x90/0x110 security/tomoyo/realpath.c:308
 tomoyo_find_next_domain+0x256/0x1a60 security/tomoyo/domain.c:726
 tomoyo_bprm_check_security+0xdd/0x120 security/tomoyo/tomoyo.c:101
 security_bprm_check+0x5e/0x90 security/security.c:868
 search_binary_handler fs/exec.c:1730 [inline]
 exec_binprm fs/exec.c:1783 [inline]
 bprm_execve+0xa53/0x1840 fs/exec.c:1852
 do_execveat_common+0x51e/0x6d0 fs/exec.c:1957
 do_execve fs/exec.c:2027 [inline]
 __do_sys_execve fs/exec.c:2103 [inline]
 __se_sys_execve fs/exec.c:2098 [inline]
 __x64_sys_execve+0x8e/0xa0 fs/exec.c:2098
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9960b18107
Code: 0f 00 64 c7 00 07 00 00 00 b8 ff ff ff ff c9 c3 0f 1f 00 48 8b 05 a9 ee 0f 00 48 8b 10 e9 01 00 00 00 90 b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 ec 0f 00 f7 d8 64 89 01 48
RSP: 002b:00007fff36924298 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 000055ad28db6078 RCX: 00007f9960b18107
RDX: 000055ad28db60a0 RSI: 000055ad28db6078 RDI: 000055ad28db6130
RBP: 000055ad28db6130 R08: 00007fff36928e68 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 000055ad28db60a0
R13: 00007f9960cdde8b R14: 000055ad28db60a0 R15: 0000000000000000
 </TASK>