INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 7843 Comm: syz-executor Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:119
 dump_stack+0x1c/0x28 lib/dump_stack.c:128
 assign_lock_key+0x274/0x2a8 kernel/locking/lockdep.c:975
 register_lock_class+0x144/0x6ac kernel/locking/lockdep.c:1288
 __lock_acquire+0x18c/0x779c kernel/locking/lockdep.c:5019
 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162
 ocfs2_mark_lockres_freeing+0x164/0x788 fs/ocfs2/dlmglue.c:3516
 ocfs2_simple_drop_lockres fs/ocfs2/dlmglue.c:3572 [inline]
 ocfs2_drop_osb_locks fs/ocfs2/dlmglue.c:3580 [inline]
 ocfs2_dlm_shutdown+0x44/0x230 fs/ocfs2/dlmglue.c:3390
 ocfs2_dismount_volume+0x3f4/0x920 fs/ocfs2/super.c:1920
 ocfs2_put_super+0xec/0x368 fs/ocfs2/super.c:1610
 generic_shutdown_super+0x128/0x2b8 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
ocfs2: Unmounting device (7,0) on (node local)
Unable to handle kernel paging request at virtual address dfff800000000001
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7843 Comm: syz-executor Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_clear_inode fs/ocfs2/inode.c:1208 [inline]
pc : ocfs2_evict_inode+0xd2c/0x468c fs/ocfs2/inode.c:1220
lr : ocfs2_clear_inode fs/ocfs2/inode.c:1199 [inline]
lr : ocfs2_evict_inode+0xcb8/0x468c fs/ocfs2/inode.c:1220
sp : ffff8000ac1d7080
x29: ffff8000ac1d77a0 x28: ffff70001583ae24 x27: 1fffe0001de63bc4
x26: ffff0000ef31de20 x25: 1fffe0001de63bc8 x24: ffff8000ac1d7120
x23: ffff0000ef31d580 x22: ffff0000f1a9c000 x21: dfff800000000000
x20: ffff0000f1a9c290 x19: 0000000000000008 x18: 1fffe00036799fe6
x17: ffff80008f50d000 x16: ffff80008301a844 x15: 0000000000000001
x14: 1fffe0001de63b6e x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : ffff0000ef31ddf8
x8 : 0000000000000001 x7 : 0000000000000000 x6 : ffff800082000d4c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008033e510
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 ocfs2_clear_inode fs/ocfs2/inode.c:1208 [inline]
 ocfs2_evict_inode+0xd2c/0x468c fs/ocfs2/inode.c:1220
 evict+0x418/0x894 fs/inode.c:704
 iput_final fs/inode.c:1838 [inline]
 iput+0x74c/0x830 fs/inode.c:1864
 __ocfs2_free_slot_info fs/ocfs2/slot_map.c:307 [inline]
 ocfs2_free_slot_info+0x80/0x20c fs/ocfs2/slot_map.c:443
 ocfs2_delete_osb+0x64/0x150 fs/ocfs2/super.c:2499
 ocfs2_dismount_volume+0x4d0/0x920 fs/ocfs2/super.c:1938
 ocfs2_put_super+0xec/0x368 fs/ocfs2/super.c:1610
 generic_shutdown_super+0x128/0x2b8 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Code: 97aa157e f9400288 91002113 d343fe68 (38756908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97aa157e 	bl	0xfffffffffea855f8
   4:	f9400288 	ldr	x8, [x20]
   8:	91002113 	add	x19, x8, #0x8
   c:	d343fe68 	lsr	x8, x19, #3
* 10:	38756908 	ldrb	w8, [x8, x21] <-- trapping instruction