ERROR: (device loop4): txAbort: 
==================================================================
BUG: KASAN: slab-out-of-bounds in jfs_readdir+0x15d0/0x3024 fs/jfs/jfs_dtree.c:3215
Read of size 4 at addr ffff0000de59c98c by task syz.4.392/6204

CPU: 0 PID: 6204 Comm: syz.4.392 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x78/0x30c mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xec/0x15c mm/kasan/report.c:451
 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308
 jfs_readdir+0x15d0/0x3024 fs/jfs/jfs_dtree.c:3215
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x11c/0x340 fs/readdir.c:354
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 6204:
 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+0x74/0x408 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x1e0/0x3e4 mm/slub.c:3233
 jfs_alloc_inode+0x24/0x60 fs/jfs/super.c:105
 alloc_inode fs/inode.c:261 [inline]
 iget_locked+0x178/0x710 fs/inode.c:1308
 jfs_iget+0x30/0x374 fs/jfs/inode.c:29
 jfs_lookup+0x198/0x32c fs/jfs/namei.c:1467
 __lookup_slow+0x24c/0x380 fs/namei.c:1663
 lookup_slow+0x5c/0x80 fs/namei.c:1680
 walk_component+0x2b0/0x3a8 fs/namei.c:1976
 link_path_walk+0x590/0xb8c fs/namei.c:-1
 path_parentat fs/namei.c:2502 [inline]
 __filename_parentat+0x1b0/0x510 fs/namei.c:2526
 filename_parentat fs/namei.c:2544 [inline]
 do_renameat2+0x224/0xcdc fs/namei.c:4901
 __do_sys_renameat2 fs/namei.c:5018 [inline]
 __se_sys_renameat2 fs/namei.c:5015 [inline]
 __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5015
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/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 ffff0000de59c0c0
 which belongs to the cache jfs_ip of size 2240
The buggy address is located 12 bytes to the right of
 2240-byte region [ffff0000de59c0c0, ffff0000de59c980)
The buggy address belongs to the page:
page:0000000034f45770 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000de598000 pfn:0x11e598
head:0000000034f45770 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff0000ea7ed601
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c2bf9380
raw: ffff0000de598000 00000000800d000c 00000001ffffffff ffff0000ea7ed601
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000de59c880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000de59c900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000de59c980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff0000de59ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000de59ca80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
read_mapping_page failed!
ERROR: (device loop4): txAbort: 

ERROR: (device loop4): jfs_readdir: JFS:Dtree error: ino = 32, bn=0, index = 0