read_mapping_page failed!
ERROR: (device loop1): txCommit: 
==================================================================
BUG: KASAN: slab-out-of-bounds in dtSplitPage+0x1248/0x37c0
Read of size 1 at addr ffff888120a9f715 by task syz.1.33/6144

CPU: 0 UID: 0 PID: 6144 Comm: syz.1.33 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_report+0xba/0x230
 kasan_report+0x117/0x150
 dtSplitPage+0x1248/0x37c0
 dtInsert+0x10a4/0x5f10
 jfs_create+0x75b/0xb10
 path_openat+0x1395/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_creat+0x8f/0xc0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e63b9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2e64990028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f2e63e15fa0 RCX: 00007f2e63b9c799
RDX: 0000000000000000 RSI: 0000000000000032 RDI: 00002000000004c0
RBP: 00007f2e63c32c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2e63e16038 R14: 00007f2e63e15fa0 R15: 00007ffc5ea57478
 </TASK>

Allocated by task 6144:
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_lru_noprof+0x2b8/0x640
 jfs_alloc_inode+0x28/0x70
 alloc_inode+0x6a/0x1b0
 iget_locked+0x131/0x6a0
 jfs_iget+0x24/0x470
 jfs_lookup+0x220/0x420
 lookup_one_qstr_excl+0x131/0x360
 __start_renaming+0x1db/0x410
 filename_renameat2+0x38c/0x9c0
 __se_sys_rename+0x55/0x2c0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888120a9ede0
 which belongs to the cache jfs_ip of size 2216
The buggy address is located 141 bytes to the right of
 allocated 2216-byte region [ffff888120a9ede0, ffff888120a9f688)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x120a98
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888120a9f709
flags: 0x17ff00000000040(head|node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 017ff00000000040 ffff888169005500 dead000000000100 dead000000000122
raw: 0000000000000000 00000008000d000d 00000000f5000000 ffff888120a9f709
head: 017ff00000000040 ffff888169005500 dead000000000100 dead000000000122
head: 0000000000000000 00000008000d000d 00000000f5000000 ffff888120a9f709
head: 017ff00000000003 ffffea000482a601 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_RECLAIMABLE|__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5999, tgid 5997 (syz.2.17), ts 61532643417, free_ts 0
 post_alloc_hook+0x231/0x280
 get_page_from_freelist+0x24dc/0x2580
 __alloc_frozen_pages_noprof+0x18d/0x380
 allocate_slab+0x77/0x660
 refill_objects+0x331/0x3c0
 __pcs_replace_empty_main+0x2e6/0x730
 kmem_cache_alloc_lru_noprof+0x37c/0x640
 jfs_alloc_inode+0x28/0x70
 alloc_inode+0x6a/0x1b0
 new_inode+0x22/0x170
 ialloc+0x4c/0x8f0
 jfs_mkdir+0x1e1/0xb00
 vfs_mkdir+0x413/0x630
 ovl_workdir_create+0x4d7/0x940
 ovl_get_indexdir+0x2cc/0x600
 ovl_fill_super+0x37f3/0x5e00
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888120a9f600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888120a9f680: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888120a9f700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                         ^
 ffff888120a9f780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888120a9f800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
