loop1: detected capacity change from 0 to 32768
find_entry called with index >= next_index
==================================================================
BUG: KASAN: slab-out-of-bounds in ciCompare fs/jfs/jfs_dtree.c:3696 [inline]
BUG: KASAN: slab-out-of-bounds in dtSearch+0x12c0/0x1f34 fs/jfs/jfs_dtree.c:644
Read of size 1 at addr ffff0000edc0b714 by task syz.1.192/5029

CPU: 1 PID: 5029 Comm: syz.1.192 Not tainted 5.15.169-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 __asan_report_load1_noabort+0x44/0x50 mm/kasan/report_generic.c:306
 ciCompare fs/jfs/jfs_dtree.c:3696 [inline]
 dtSearch+0x12c0/0x1f34 fs/jfs/jfs_dtree.c:644
 jfs_lookup+0x164/0x39c fs/jfs/namei.c:1459
 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1563
 filename_create+0x230/0x468 fs/namei.c:3836
 do_mkdirat+0xac/0x610 fs/namei.c:4080
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __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

Allocated by task 5029:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233
 jfs_alloc_inode+0x24/0x60 fs/jfs/super.c:105
 alloc_inode fs/inode.c:236 [inline]
 new_inode_pseudo+0x68/0x200 fs/inode.c:976
 new_inode+0x38/0x174 fs/inode.c:1005
 ialloc+0x58/0x7c0 fs/jfs/jfs_inode.c:48
 jfs_create+0x190/0xa1c fs/jfs/namei.c:92
 lookup_open fs/namei.c:3462 [inline]
 open_last_lookups fs/namei.c:3532 [inline]
 path_openat+0xf18/0x26cc fs/namei.c:3739
 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769
 do_sys_openat2+0x128/0x3e0 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_openat fs/open.c:1285 [inline]
 __se_sys_openat fs/open.c:1280 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1280
 __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

The buggy address belongs to the object at ffff0000edc0ae40
 which belongs to the cache jfs_ip of size 2240
The buggy address is located 20 bytes to the right of
 2240-byte region [ffff0000edc0ae40, ffff0000edc0b700)
The buggy address belongs to the page:
page:000000000e0c6808 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12dc08
head:000000000e0c6808 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff0000c0e7ac01
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c693f380
raw: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000c0e7ac01
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000edc0b600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000edc0b680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000edc0b700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                         ^
 ffff0000edc0b780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000edc0b800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================