ERROR: (device loop0): txAbort: 
read_mapping_page failed!
ERROR: (device loop0): txAbort: 
==================================================================
BUG: KASAN: slab-out-of-bounds in jfs_readdir+0x16dc/0x3338 fs/jfs/jfs_dtree.c:2919
Read of size 4 at addr ffff0000dcae528c by task syz.0.13/6625

CPU: 1 UID: 0 PID: 6625 Comm: syz.0.13 Not tainted 6.15.0-rc2-syzkaller-gc72692105976 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x198/0x550 mm/kasan/report.c:521
 kasan_report+0xd8/0x138 mm/kasan/report.c:634
 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
 jfs_readdir+0x16dc/0x3338 fs/jfs/jfs_dtree.c:2919
 wrap_directory_iterator+0xa8/0xf4 fs/readdir.c:65
 shared_jfs_readdir+0x30/0x40 fs/jfs/namei.c:1540
 iterate_dir+0x46c/0x5f4 fs/readdir.c:108
 __do_sys_getdents64 fs/readdir.c:403 [inline]
 __se_sys_getdents64 fs/readdir.c:389 [inline]
 __arm64_sys_getdents64+0x1c0/0x490 fs/readdir.c:389
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Allocated by task 6625:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:562
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_lru_noprof+0x258/0x414 mm/slub.c:4219
 jfs_alloc_inode+0x2c/0x68 fs/jfs/super.c:105
 alloc_inode+0x68/0x19c fs/inode.c:346
 iget_locked+0x184/0x7ec fs/inode.c:1439
 jfs_iget+0x30/0x378 fs/jfs/inode.c:29
 jfs_lookup+0x1e8/0x39c fs/jfs/namei.c:1469
 __lookup_slow+0x258/0x37c fs/namei.c:1807
 lookup_slow+0x60/0x84 fs/namei.c:1824
 walk_component fs/namei.c:2128 [inline]
 link_path_walk+0x77c/0xc48 fs/namei.c:2493
 path_parentat fs/namei.c:2697 [inline]
 __filename_parentat+0x214/0x60c fs/namei.c:2721
 filename_parentat fs/namei.c:2739 [inline]
 do_renameat2+0x308/0xd94 fs/namei.c:5158
 __do_sys_renameat2 fs/namei.c:5269 [inline]
 __se_sys_renameat2 fs/namei.c:5266 [inline]
 __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5266
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

The buggy address belongs to the object at ffff0000dcae49c0
 which belongs to the cache jfs_ip of size 2232
The buggy address is located 20 bytes to the right of
 allocated 2232-byte region [ffff0000dcae49c0, ffff0000dcae5278)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11cae0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff0000c77c9201
flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 05ffc00000000040 ffff0000c4abd000 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800d000d 00000000f5000000 ffff0000c77c9201
head: 05ffc00000000040 ffff0000c4abd000 dead000000000122 0000000000000000
head: 0000000000000000 00000000800d000d 00000000f5000000 ffff0000c77c9201
head: 05ffc00000000003 fffffdffc372b801 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000dcae5180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000dcae5200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
>ffff0000dcae5280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 00
                      ^
 ffff0000dcae5300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000dcae5380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
read_mapping_page failed!
ERROR: (device loop0): txAbort: 

ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 32, bn=0, index = 0