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 PID: 5550 Comm: syz.2.291 Tainted: G        W          6.1.121-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 assign_lock_key+0x274/0x2a8 kernel/locking/lockdep.c:974
 register_lock_class+0x148/0x6a8 kernel/locking/lockdep.c:1287
 __lock_acquire+0x184/0x7680 kernel/locking/lockdep.c:4928
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xec/0x1a8 kernel/sched/wait.c:160
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa1c fs/jfs/namei.c:159
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0xeac/0x2548 fs/namei.c:3780
 do_filp_open+0x1bc/0x3cc fs/namei.c:3810
 do_sys_openat2+0x128/0x3e0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:

CPU: 1 PID: 5550 Comm: syz.2.291 Tainted: G        W          6.1.121-syzkaller #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+0x1d4/0x3bc
lr : __wake_up_common_lock kernel/sched/wait.c:138 [inline]
lr : __wake_up+0x10c/0x1a8 kernel/sched/wait.c:160
sp : ffff800021db72e0
x29: ffff800021db7300
 x28: dfff800000000000
 x27: ffff800020902070

x26: 0000000000000000
 x25: ffffffffffffffe8
 x24: 0000000000000000

x23: 0000000000000003 x22: 1ffff000043b6e70 x21: 0000000000000000
x20: ffff800021db7380 x19: 0000000000000000 x18: ffff800021db6580
x17: 0000000000000000 x16: ffff800008319a88 x15: 0000000000000002
x14: 00000000ffffffff x13: 0000000000000001 x12: ffff7000043b6e50
x11: 1ffff000043b6e50 x10: 0000000000000004 x9 : 0000000000000007
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021db7380 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000003 x0 : ffff800020902030
Call trace:
 __wake_up_common+0x1d4/0x3bc
 __wake_up_common_lock kernel/sched/wait.c:138 [inline]
 __wake_up+0x10c/0x1a8 kernel/sched/wait.c:160
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa1c fs/jfs/namei.c:159
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0xeac/0x2548 fs/namei.c:3780
 do_filp_open+0x1bc/0x3cc fs/namei.c:3810
 do_sys_openat2+0x128/0x3e0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 54000b20 d343ff08 aa1803fa d1006319 (387c6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	54000b20 	b.eq	0x164  // b.none
   4:	d343ff08 	lsr	x8, x24, #3
   8:	aa1803fa 	mov	x26, x24
   c:	d1006319 	sub	x25, x24, #0x18
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction