loop4: detected capacity change from 0 to 14901
ERROR: (device loop4): txBegin: read-only filesystem
ERROR: (device loop4): remounting filesystem as read-only
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 PID: 18363 Comm: syz-executor.4 Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 assign_lock_key+0x274/0x2a8 kernel/locking/lockdep.c:976
 register_lock_class+0x144/0x6ac kernel/locking/lockdep.c:1289
 __lock_acquire+0x184/0x75e8 kernel/locking/lockdep.c:5013
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5753
 __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:137 [inline]
 __wake_up+0xec/0x1a8 kernel/sched/wait.c:160
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 __jfs_xattr_set+0x138/0x190 fs/jfs/xattr.c:920
 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941
 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201
 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x208/0x29c fs/xattr.c:653
 path_setxattr+0x17c/0x258 fs/xattr.c:672
 __do_sys_lsetxattr fs/xattr.c:695 [inline]
 __se_sys_lsetxattr fs/xattr.c:691 [inline]
 __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:691
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
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: 0 PID: 18363 Comm: syz-executor.4 Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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 : ffff80009d297500
x29: ffff80009d297520 x28: dfff800000000000 x27: ffff800095f0c070
x26: 0000000000000000 x25: ffffffffffffffe8 x24: 0000000000000000
x23: 0000000000000003 x22: 1ffff00013a52eb4 x21: 0000000000000000
x20: ffff80009d2975a0 x19: 0000000000000000 x18: ffff80009d297360
x17: 0000000000000000 x16: ffff800080337c98 x15: ffff700013a52e94
x14: 1ffff00013a52e94 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700013a52e94 x10: 1ffff00013a52e94 x9 : 0000000000000007
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009d2975a0 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000003 x0 : ffff800095f0c030
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_xattr_set+0x138/0x190 fs/jfs/xattr.c:920
 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941
 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201
 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x208/0x29c fs/xattr.c:653
 path_setxattr+0x17c/0x258 fs/xattr.c:672
 __do_sys_lsetxattr fs/xattr.c:695 [inline]
 __se_sys_lsetxattr fs/xattr.c:691 [inline]
 __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:691
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
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