REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using tea hash to sort names
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
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: 1 PID: 6836 Comm: syz-executor Tainted: G        W          6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : reiserfs_get_block+0x1440/0x45d8 fs/reiserfs/inode.c:1052
lr : reiserfs_get_block+0x13fc/0x45d8 fs/reiserfs/inode.c:1047
sp : ffff80009aa86c20
x29: ffff80009aa872a0 x28: 1fffe0001c96d214 x27: ffffffffffffffff
x26: 00000000000003f4 x25: 000000000000000c x24: 000000000000000c
x23: 0000000000000000 x22: 0000000000000010 x21: 0000000000000228
x20: ffff0000e75dd7d8 x19: dfff800000000000 x18: ffff0001fea82250
x17: 0000001f00090028 x16: ffff80008a738540 x15: 0000000000000004
x14: 1ffff00013550e44 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700013550e48 x10: 0000000000ff0100 x9 : 0000000000000003
x8 : 0000000000000001 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020
x2 : 0000000000000000 x1 : 00000000000003f4 x0 : 0000000000000000
Call trace:
 reiserfs_get_block+0x1440/0x45d8 fs/reiserfs/inode.c:1052
 __block_write_begin_int+0x580/0x166c fs/buffer.c:2128
 __block_write_begin+0x7c/0xa0 fs/buffer.c:2177
 __reiserfs_write_begin+0x348/0x56c fs/reiserfs/inode.c:2826
 reiserfs_xattr_set_handle+0x464/0xe8c fs/reiserfs/xattr.c:573
 reiserfs_xattr_set+0x398/0x4b0 fs/reiserfs/xattr.c:635
 security_set+0x9c/0xd8 fs/reiserfs/xattr_security.c:32
 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200
 __vfs_setxattr_noperm+0x110/0x578 fs/xattr.c:234
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:321
 do_setxattr fs/xattr.c:629 [inline]
 setxattr+0x208/0x29c fs/xattr.c:652
 __do_sys_fsetxattr fs/xattr.c:708 [inline]
 __se_sys_fsetxattr fs/xattr.c:697 [inline]
 __arm64_sys_fsetxattr+0x1a8/0x224 fs/xattr.c:697
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 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: 350071a8 8b1b0ad9 b94483f5 d343ff28 (38f36908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	350071a8 	cbnz	w8, 0xe34
   4:	8b1b0ad9 	add	x25, x22, x27, lsl #2
   8:	b94483f5 	ldr	w21, [sp, #1152]
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	38f36908 	ldrsb	w8, [x8, x19] <-- trapping instruction