jfs_dirty_inode called on read-only volume
Is remount racy?
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: 0 UID: 0 PID: 6835 Comm: syz.2.47 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:501 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 assign_lock_key+0x178/0x188 kernel/locking/lockdep.c:987
 register_lock_class+0xf0/0x348 kernel/locking/lockdep.c:1302
 __lock_acquire+0xbc/0x30a4 kernel/locking/lockdep.c:5115
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871
 __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+0x40/0x1a8 kernel/sched/wait.c:127
 txEnd+0x98/0x4f0 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x258/0x8c4 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x12d8/0x2c40 fs/namei.c:4043
 do_filp_open+0x18c/0x36c fs/namei.c:4073
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1463
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 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]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6835 Comm: syz.2.47 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __wake_up_common kernel/sched/wait.c:85 [inline]
pc : __wake_up_common_lock kernel/sched/wait.c:106 [inline]
pc : __wake_up+0xb4/0x1a8 kernel/sched/wait.c:127
lr : __wake_up_common_lock kernel/sched/wait.c:105 [inline]
lr : __wake_up+0x40/0x1a8 kernel/sched/wait.c:127
sp : ffff8000a35874d0
x29: ffff8000a35874e0 x28: dfff800000000000 x27: ffff80008fc3e000
x26: 1ffff00011f87c78 x25: 0000000000000000 x24: ffff80009b12d070
x23: 0000000000000003 x22: 0000000000000110 x21: 0000000000000000
x20: ffff80009b12d030 x19: 0000000000000000 x18: 00000000ffffffff
x17: 0000000000000000 x16: ffff80008052b6cc x15: ffff7000146b0e80
x14: 1ffff000146b0e80 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff7000146b0e80 x10: dfff800000000000 x9 : dafa970b2546d300
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a35869b8 x4 : ffff80008f727060 x3 : ffff80008052b7e4
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __wake_up_common kernel/sched/wait.c:85 [inline] (P)
 __wake_up_common_lock kernel/sched/wait.c:106 [inline] (P)
 __wake_up+0xb4/0x1a8 kernel/sched/wait.c:127 (P)
 txEnd+0x98/0x4f0 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x258/0x8c4 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x12d8/0x2c40 fs/namei.c:4043
 do_filp_open+0x18c/0x36c fs/namei.c:4073
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1463
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: eb1802df aa1603f9 540004a0 d343ff28 (387c6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	eb1802df 	cmp	x22, x24
   4:	aa1603f9 	mov	x25, x22
   8:	540004a0 	b.eq	0x9c  // b.none
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction