el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
(syz.0.221,7818,1):ocfs2_grab_folios_for_write:1073 ERROR: status = -12
(syz.0.221,7818,1):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=00000002079fa000
[fffffffffffffffc] pgd=0000000000000000, p4d=000000020b690403, pud=000000020b691403, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7818 Comm: syz.0.221 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #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 : ffff80009e7d6d70
x29: ffff80009e7d6d70 x28: ffff0000d6e0e000 x27: 0000000000000001
x26: 00000000ffffffff x25: 0000000000000001 x24: dfff800000000000
x23: dfff800000000000 x22: ffff0000ef834184 x21: dfff800000000000
x20: fffffffffffffffc x19: fffffffffffffff4 x18: 1fffe0003386f276
x17: 3d20737574617473 x16: ffff80008051c10c x15: 0000000000000001
x14: 1fffe0001a09098f x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001a090990 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff80008022b53c x6 : ffff80008022b738
x5 : ffff0000d0ff44f0 x4 : ffff80009e7d6a60 x3 : ffff800080516bac
x2 : 0000000000000001 x1 : 0000000000000002 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+0x274/0x364 fs/ocfs2/aops.c:791
 ocfs2_free_write_ctxt fs/ocfs2/aops.c:813 [inline]
 ocfs2_write_begin_nolock+0x217c/0x3864 fs/ocfs2/aops.c:1830
 ocfs2_write_begin+0x1b4/0x30c fs/ocfs2/aops.c:1882
 generic_perform_write+0x23c/0x79c mm/filemap.c:4103
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4220
 ocfs2_file_write_iter+0x1328/0x1b84 fs/ocfs2/file.c:2469
 do_iter_readv_writev+0x460/0x6a8 fs/read_write.c:-1
 vfs_writev+0x2b4/0x81c fs/read_write.c:1055
 do_pwritev fs/read_write.c:1151 [inline]
 __do_sys_pwritev2 fs/read_write.c:1209 [inline]
 __se_sys_pwritev2 fs/read_write.c:1200 [inline]
 __arm64_sys_pwritev2+0x1bc/0x2cc fs/read_write.c:1200
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 38756908 34000068 aa1403e0 94093f00 (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:	94093f00 	bl	0x24fc0c
* 10:	f9400294 	ldr	x20, [x20] <-- trapping instruction