rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2685 jiffies s: 2449 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5421 Comm: syz-executor.0 Not tainted 6.8.0-rc4-syzkaller-g166c2c8a6a4d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:__lock_acquire+0x47b/0x1fd0 kernel/locking/lockdep.c:5080
Code: 41 09 c7 41 09 cf 41 09 ff 48 8b 44 24 20 0f b6 04 30 84 c0 0f 85 13 13 00 00 44 8b a4 24 e0 00 00 00 48 8b 44 24 10 44 89 38 <49> 89 c7 4c 8b 74 24 28 4b 8d 5c f0 24 48 89 d8 48 c1 e8 03 0f b6
RSP: 0018:ffffc900001f0a70 EFLAGS: 00000046
RAX: ffff88802bde0b08 RBX: 0000000000004068 RCX: 0000000000040000
RDX: 0000000000080000 RSI: dffffc0000000000 RDI: 0000000000004068
RBP: 0000000000000005 R08: ffff88802bde0ac0 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1f0ab5e R12: 0000000000000000
R13: 0000000000000068 R14: 0000000000000001 R15: 00000000000c4068
FS:  00005555563fa480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556403938 CR3: 000000002ef58000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1693 [inline]
 __hrtimer_run_queues+0x659/0xd00 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:551 [inline]
RIP: 0010:stack_depot_save_flags+0xab/0x5c0 lib/stackdepot.c:651
Code: fd c1 c5 06 31 dd 44 01 ff 89 e9 c1 c1 08 41 29 ef 44 31 f9 01 fd 29 cf 89 c8 c1 c0 10 31 f8 01 e9 89 c3 c1 c3 13 29 c5 31 eb <01> c8 29 d9 41 89 df 41 c1 c7 04 41 31 cf 01 c3 83 c6 fd 48 83 c2
RSP: 0018:ffffc900093e7588 EFLAGS: 00000282
RAX: 000000009bb081e7 RBX: 00000000f63db737 RCX: 00000000b1ef3420
RDX: ffffc900093e75f8 RSI: 0000000000000016 RDI: 00000000dc369cda
RBP: 00000000f9016ab3 R08: 000000000000000e R09: 0000000000000003
R10: dffffc0000000000 R11: fffffbfff1f0ab5e R12: ffffffff845759c9
R13: ffffc900093e75e0 R14: 0000000000000000 R15: 0000000023357d1d
 kasan_save_stack mm/kasan/common.c:48 [inline]
 kasan_save_track+0x51/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:241
 __kasan_slab_free+0x34/0x70 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kfree+0x14a/0x380 mm/slub.c:4409
 tomoyo_realpath_from_path+0x5a9/0x5e0 security/tomoyo/realpath.c:286
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x2b7/0x740 security/tomoyo/file.c:822
 security_inode_getattr+0xd8/0x130 security/security.c:2237
 vfs_getattr+0x45/0x430 fs/stat.c:173
 vfs_statx+0x1a5/0x4e0 fs/stat.c:248
 vfs_fstatat+0x135/0x190 fs/stat.c:304
 __do_sys_newfstatat fs/stat.c:468 [inline]
 __se_sys_newfstatat fs/stat.c:462 [inline]
 __x64_sys_newfstatat+0x117/0x190 fs/stat.c:462
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8dc7a7b58a
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7
RSP: 002b:00007ffe7402ef78 EFLAGS: 00000286 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f8dc7ac73b9 RCX: 00007f8dc7a7b58a
RDX: 00007ffe7402efa0 RSI: 00007ffe7402f030 RDI: 00000000ffffff9c
RBP: 00007ffe7402f030 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000286 R12: 00007ffe740300f0
R13: 00007f8dc7ac73b9 R14: 0000000000015eef R15: 0000000000000003
 </TASK>