loop3: detected capacity change from 0 to 32768
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: 1 UID: 0 PID: 6409 Comm: syz-executor695 Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dbFree+0xfc/0x5b0 fs/jfs/jfs_dmap.c:368
lr : dbFree+0xec/0x5b0 fs/jfs/jfs_dmap.c:368
sp : ffff80009a6f79a0
x29: ffff80009a6f79e0 x28: 1ffff000134def58 x27: dfff800000000000
x26: dfff800000000000 x25: 1fffe0001bf66e5f x24: ffff0000c3058000
x23: ffff0000dfb372f8 x22: 0000000000000040 x21: ffff0000d873a200
x20: 0000000000000040 x19: 0000000000000080 x18: 1fffe00036799fe6
x17: ffff80008f50d000 x16: ffff80008301a8cc x15: 0000000000000001
x14: 1fffe0001bf66a79 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff800081a99c88 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008033ef08
x2 : 0000000000000001 x1 : 0000000000000040 x0 : 0000000000000000
Call trace:
 dbFree+0xfc/0x5b0 fs/jfs/jfs_dmap.c:368
 dbDiscardAG+0x604/0x748 fs/jfs/jfs_dmap.c:1650
 jfs_ioc_trim+0x3cc/0x5d8 fs/jfs/jfs_discard.c:100
 jfs_ioctl+0x338/0x550 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893
 __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+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: b4002114 f85f83a9 8b1402d3 d343fd28 (387a6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	b4002114 	cbz	x20, 0x420
   4:	f85f83a9 	ldur	x9, [x29, #-8]
   8:	8b1402d3 	add	x19, x22, x20
   c:	d343fd28 	lsr	x8, x9, #3
* 10:	387a6908 	ldrb	w8, [x8, x26] <-- trapping instruction