find_entry called with index = 0
jfs_dirty_inode called on read-only volume
Is remount racy?
jfs_dirty_inode called on read-only volume
Is remount racy?
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: 7503 Comm: syz.2.184 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 assign_lock_key+0x278/0x2b0 kernel/locking/lockdep.c:981
 register_lock_class+0x144/0x6b4 kernel/locking/lockdep.c:1295
 __lock_acquire+0x18c/0x7904 kernel/locking/lockdep.c:5101
 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:105 [inline]
 __wake_up+0x38/0x1b0 kernel/sched/wait.c:127
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa18 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3649 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x13e4/0x2b14 fs/namei.c:3984
 do_filp_open+0x1e8/0x404 fs/namei.c:4014
 do_sys_openat2+0x124/0x1b8 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
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
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7503 Comm: syz.2.184 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __wake_up_common_lock kernel/sched/wait.c:106 [inline]
pc : __wake_up+0xd4/0x1b0 kernel/sched/wait.c:127
lr : __wake_up_common_lock kernel/sched/wait.c:105 [inline]
lr : __wake_up+0x38/0x1b0 kernel/sched/wait.c:127
sp : ffff8000a26d7410
x29: ffff8000a26d7420 x28: dfff800000000000 x27: 0000000000000000
x26: ffff8000a26d76b0 x25: 0000000000000000 x24: ffff80009b0b9070
x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000
x20: ffff80009b0b9030 x19: 0000000000000000 x18: 0000000000000008
x17: 0000000000000000 x16: ffff80008047cca4 x15: ffff7000144dae68
x14: 1ffff000144dae68 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff7000144dae68 x10: 1ffff000144dae68 x9 : 0000000000000003
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a26d63b8 x4 : ffff80008fa8f840 x3 : ffff80008047cdcc
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __wake_up_common_lock kernel/sched/wait.c:106 [inline] (P)
 __wake_up+0xd4/0x1b0 kernel/sched/wait.c:127 (P)
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa18 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3649 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x13e4/0x2b14 fs/namei.c:3984
 do_filp_open+0x1e8/0x404 fs/namei.c:4014
 do_sys_openat2+0x124/0x1b8 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: aa1703f9 eb1802ff 540004a0 d343ff28 (387c6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1703f9 	mov	x25, x23
   4:	eb1802ff 	cmp	x23, x24
   8:	540004a0 	b.eq	0x9c  // b.none
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction