el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
(syz.2.1322,12071,0):ocfs2_grab_folios_for_write:1073 ERROR: status = -12
(syz.2.1322,12071,0):ocfs2_write_begin_nolock:1791 ERROR: status = -12
Unable to handle kernel paging request at virtual address fffffffffffffffc
KASAN: maybe wild-memory-access in range [0x0003ffffffffffe0-0x0003ffffffffffe7]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001a45f1000
[fffffffffffffffc] pgd=0000000000000000, p4d=00000001a8280403, pud=00000001a8281403, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 12071 Comm: syz.2.1322 Not tainted 6.15.0-rc1-syzkaller-g2fe2b96c3818 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : const_folio_flags include/linux/page-flags.h:347 [inline]
pc : folio_test_locked include/linux/page-flags.h:547 [inline]
pc : folio_unlock+0x3c/0x120 mm/filemap.c:1498
lr : folio_unlock+0x24/0x120 mm/filemap.c:1494
sp : ffff80009c466d90
x29: ffff80009c466d90 x28: 00000000fffffff4 x27: 0000000000000001
x26: 0000000000000000 x25: 00000000ffffffff x24: dfff800000000000
x23: ffff0000f2984184 x22: ffff0000d35b4000 x21: dfff800000000000
x20: fffffffffffffffc x19: fffffffffffffff4 x18: 0000000000000008
x17: 737574617473203a x16: ffff800080481d98 x15: 0000000000000001
x14: 1fffe0001a2dbe0f x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff800080159ccc x6 : ffff800080159ec8
x5 : ffff0000dc1f0740 x4 : ffff80009c466a80 x3 : ffff80008047c138
x2 : 0000000000000001 x1 : 0000000000000001 x0 : fffffffffffffff4
Call trace:
 const_folio_flags include/linux/page-flags.h:347 [inline] (P)
 folio_test_locked include/linux/page-flags.h:547 [inline] (P)
 folio_unlock+0x3c/0x120 mm/filemap.c:1498 (P)
 ocfs2_unlock_and_free_folios+0x7c/0x1c8 fs/ocfs2/aops.c:765
 ocfs2_unlock_folios+0x284/0x374 fs/ocfs2/aops.c:791
 ocfs2_free_write_ctxt fs/ocfs2/aops.c:813 [inline]
 ocfs2_write_begin_nolock+0x25a8/0x3e90 fs/ocfs2/aops.c:1830
 ocfs2_write_begin+0x1ac/0x38c fs/ocfs2/aops.c:1882
 generic_perform_write+0x280/0x894 mm/filemap.c:4102
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4219
 ocfs2_file_write_iter+0x161c/0x1f3c fs/ocfs2/file.c:2469
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x704/0xa9c fs/read_write.c:684
 ksys_write+0x15c/0x26c fs/read_write.c:736
 __do_sys_write fs/read_write.c:747 [inline]
 __se_sys_write fs/read_write.c:744 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:744
 __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:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 38756908 34000068 aa1403e0 940a1870 (f9400294) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	38756908 	ldrb	w8, [x8, x21]
   4:	34000068 	cbz	w8, 0x10
   8:	aa1403e0 	mov	x0, x20
   c:	940a1870 	bl	0x2861cc
* 10:	f9400294 	ldr	x20, [x20] <-- trapping instruction