memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5975 'syz-executor993'
loop0: detected capacity change from 0 to 32768
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: 5975 Comm: syz-executor993 Not tainted 6.4.0-rc4-syzkaller-g7579d8f9bf90 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dtInsertEntry+0x9cc/0x1178 fs/jfs/jfs_dtree.c:3708
lr : dtInsertEntry+0x9c0/0x1178 fs/jfs/jfs_dtree.c:3708
sp : ffff800096646de0
x29: ffff800096646f40 x28: 0000000000000008 x27: 1fffe0001c0b9628
x26: ffff0000e05cb130 x25: ffff0000e05cb140 x24: 0000000000000005
x23: 0000000000000000 x22: dfff800000000000 x21: ffff800096647420
x20: ffff800096646ee0 x19: 0000000000000008 x18: ffff800096646c00
x17: ffff800080a99284 x16: ffff80008026ab00 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000001 x7 : ffff800081a07984 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800096647420 x3 : ffff8000819f15c8
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 dtInsertEntry+0x9cc/0x1178 fs/jfs/jfs_dtree.c:3708
 dtInsert+0x964/0x54f4 fs/jfs/jfs_dtree.c:886
 jfs_create+0x698/0xa1c fs/jfs/namei.c:137
 lookup_open fs/namei.c:3492 [inline]
 open_last_lookups fs/namei.c:3560 [inline]
 path_openat+0xf80/0x27f8 fs/namei.c:3788
 do_filp_open+0x1bc/0x3cc fs/namei.c:3818
 do_sys_openat2+0x128/0x3d8 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1383
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
Code: 97ac9f46 f94017e8 91002113 d343fe68 (38f66908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97ac9f46 	bl	0xfffffffffeb27d18
   4:	f94017e8 	ldr	x8, [sp, #40]
   8:	91002113 	add	x19, x8, #0x8
   c:	d343fe68 	lsr	x8, x19, #3
* 10:	38f66908 	ldrsb	w8, [x8, x22] <-- trapping instruction