process 'syz.3.29' launched './file1' with NULL argv: empty string added
Unable to handle kernel paging request at virtual address dfff8000000000bd
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
  CM = 0, WnR = 0
[dfff8000000000bd] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4239 Comm: syz.3.29 Not tainted 5.15.179-syzkaller #0
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 : blkg_tryget_closest block/blk-cgroup.c:1832 [inline]
pc : bio_associate_blkg_from_css+0x278/0x870 block/blk-cgroup.c:1866
lr : rcu_read_lock include/linux/rcupdate.h:740 [inline]
lr : blkg_tryget_closest block/blk-cgroup.c:1830 [inline]
lr : bio_associate_blkg_from_css+0xbc/0x870 block/blk-cgroup.c:1866
sp : ffff800020b37680
x29: ffff800020b376c0 x28: dfff800000000000 x27: 1fffe0001b4539e2
x26: 1fffe0001b4539e9 x25: 0000000000000000 x24: ffff0000da29cf48
x23: ffff0000dc0aa110 x22: 0000000000000001 x21: dfff800000000000
x20: 00000000000005e8 x19: ffff0000dc0aa000 x18: ffff800020b374c0
x17: 0000000000000002 x16: ffff800011b5ac80 x15: ffff800008a12b84
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000080000
x11: 0000000000007c43 x10: ffff800024599000 x9 : 0000000000007c44
x8 : 00000000000000bd x7 : ffff80000a91d220 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff800012166180 x0 : 0000000000000001
Call trace:
 blkg_tryget_closest block/blk-cgroup.c:1832 [inline]
 bio_associate_blkg_from_css+0x278/0x870 block/blk-cgroup.c:1866
 bio_associate_blkg+0x238/0x360 block/blk-cgroup.c:1894
 lbmStartIO+0x1b0/0x430 fs/jfs/jfs_logmgr.c:2130
 lbmWrite+0x320/0x404 fs/jfs/jfs_logmgr.c:2079
 lmGCwrite fs/jfs/jfs_logmgr.c:-1 [inline]
 jfs_flush_journal+0x434/0xd94 fs/jfs/jfs_logmgr.c:1556
 jfs_sync_fs+0x80/0xac fs/jfs/super.c:689
 sync_filesystem+0xe8/0x218 fs/sync.c:56
 jfs_remount+0x104/0x594 fs/jfs/super.c:437
 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:634
 reconfigure_super+0x1d0/0x6ec fs/super.c:938
 do_remount fs/namespace.c:2668 [inline]
 path_mount+0xbec/0x101c fs/namespace.c:3334
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 977eee15 f9400288 9117a114 d343fe88 (387c6908) 
---[ end trace d5638683d08c0a50 ]---
----------------
Code disassembly (best guess):
   0:	977eee15 	bl	0xfffffffffdfbb854
   4:	f9400288 	ldr	x8, [x20]
   8:	9117a114 	add	x20, x8, #0x5e8
   c:	d343fe88 	lsr	x8, x20, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction