loop0: detected capacity change from 0 to 32768
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2892:30
index -1 is out of range for type 'struct dtslot[128]'
CPU: 1 PID: 5743 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282
 jfs_readdir+0x1580/0x37bc fs/jfs/jfs_dtree.c:2892
 iterate_dir+0x1f4/0x4e4
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2647:28
index -1 is out of range for type 'struct dtslot[128]'
CPU: 0 PID: 5743 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282
 add_missing_indices fs/jfs/jfs_dtree.c:2647 [inline]
 jfs_readdir+0x1dfc/0x37bc fs/jfs/jfs_dtree.c:3009
 iterate_dir+0x1f4/0x4e4
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:750:12
index 255 is out of range for type 'struct dtslot[128]'
CPU: 1 PID: 5743 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282
 diWrite+0xbcc/0x15cc fs/jfs/jfs_imap.c:750
 txCommit+0x750/0x5574 fs/jfs/jfs_txnmgr.c:1255
 add_missing_indices fs/jfs/jfs_dtree.c:2661 [inline]
 jfs_readdir+0x1e80/0x37bc fs/jfs/jfs_dtree.c:3009
 iterate_dir+0x1f4/0x4e4
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:750:35
index 255 is out of range for type 'struct dtslot[128]'
CPU: 0 PID: 5743 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282
 diWrite+0xc24/0x15cc fs/jfs/jfs_imap.c:750
 txCommit+0x750/0x5574 fs/jfs/jfs_txnmgr.c:1255
 add_missing_indices fs/jfs/jfs_dtree.c:2661 [inline]
 jfs_readdir+0x1e80/0x37bc fs/jfs/jfs_dtree.c:3009
 iterate_dir+0x1f4/0x4e4
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
==================================================================
BUG: KASAN: use-after-free in diWrite+0xb48/0x15cc fs/jfs/jfs_imap.c:750
Read of size 32 at addr ffff0000f1ab8890 by task syz-executor.0/5743

CPU: 1 PID: 5743 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x174/0x4c0 mm/kasan/report.c:395
 kasan_report+0xd4/0x130 mm/kasan/report.c:495
 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 diWrite+0xb48/0x15cc fs/jfs/jfs_imap.c:750
 txCommit+0x750/0x5574 fs/jfs/jfs_txnmgr.c:1255
 add_missing_indices fs/jfs/jfs_dtree.c:2661 [inline]
 jfs_readdir+0x1e80/0x37bc fs/jfs/jfs_dtree.c:3009
 iterate_dir+0x1f4/0x4e4
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Allocated by task 5723:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x80 mm/kasan/common.c:52
 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x74/0x458 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc_lru+0x1ac/0x2f8 mm/slub.c:3429
 xas_alloc lib/xarray.c:377 [inline]
 xas_expand lib/xarray.c:584 [inline]
 xas_create+0x530/0x13d4 lib/xarray.c:655
 xas_store+0x90/0x1598 lib/xarray.c:789
 shmem_add_to_page_cache+0x884/0x117c mm/shmem.c:729
 shmem_get_folio_gfp+0x11f0/0x21f0 mm/shmem.c:1971
 shmem_get_folio mm/shmem.c:2072 [inline]
 shmem_write_begin+0x13c/0x4e8 mm/shmem.c:2559
 generic_perform_write+0x278/0x55c mm/filemap.c:3817
 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3945
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:3977
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x610/0x914 fs/read_write.c:584
 ksys_write+0x15c/0x26c fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Freed by task 4244:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x80 mm/kasan/common.c:52
 kasan_save_free_info+0x38/0x5c mm/kasan/generic.c:516
 ____kasan_slab_free+0x144/0x1c0 mm/kasan/common.c:236
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:244
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x2f0/0x588 mm/slub.c:3683
 radix_tree_node_rcu_free+0x78/0x8c lib/radix-tree.c:302
 rcu_do_batch kernel/rcu/tree.c:2296 [inline]
 rcu_core+0x878/0x1c10 kernel/rcu/tree.c:2556
 rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2573
 __do_softirq+0x314/0xe38 kernel/softirq.c:571

Last potentially related work creation:
 kasan_save_stack+0x40/0x70 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496
 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2844
 xa_node_free lib/xarray.c:260 [inline]
 xas_delete_node lib/xarray.c:497 [inline]
 update_node lib/xarray.c:761 [inline]
 xas_store+0xc58/0x1598 lib/xarray.c:846
 page_cache_delete mm/filemap.c:140 [inline]
 __filemap_remove_folio+0x488/0x604 mm/filemap.c:223
 filemap_remove_folio+0xd4/0x1cc mm/filemap.c:255
 truncate_inode_folio+0x6c/0x84 mm/truncate.c:195
 shmem_undo_range+0x428/0x16b8 mm/shmem.c:942
 shmem_truncate_range mm/shmem.c:1062 [inline]
 shmem_evict_inode+0x200/0x8a8 mm/shmem.c:1171
 evict+0x260/0x68c fs/inode.c:666
 iput_final fs/inode.c:1791 [inline]
 iput+0x7c0/0x8a4 fs/inode.c:1817
 dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:401
 __dentry_kill+0x324/0x5e4 fs/dcache.c:607
 dentry_kill+0xc8/0x250
 dput+0x218/0x454 fs/dcache.c:914
 __fput+0x4f4/0x7bc fs/file_table.c:328
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Second to last potentially related work creation:
 kasan_save_stack+0x40/0x70 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496
 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2844
 radix_tree_node_free lib/radix-tree.c:308 [inline]
 delete_node+0x1ac/0x6ac lib/radix-tree.c:571
 __radix_tree_delete+0x258/0x324 lib/radix-tree.c:1377
 radix_tree_delete_item+0x30c/0x38c lib/radix-tree.c:1428
 idr_remove+0x58/0x70 lib/idr.c:154
 kernfs_put+0x2e0/0x4c0 fs/kernfs/dir.c:560
 kernfs_evict_inode+0x50/0x60 fs/kernfs/inode.c:274
 evict+0x260/0x68c fs/inode.c:666
 iput_final fs/inode.c:1791 [inline]
 iput+0x7c0/0x8a4 fs/inode.c:1817
 dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:401
 __dentry_kill+0x324/0x5e4 fs/dcache.c:607
 shrink_dentry_list+0x41c/0x850 fs/dcache.c:1202
 shrink_dcache_parent+0xbc/0x434
 d_invalidate+0x114/0x2a0 fs/dcache.c:1738
 lookup_fast+0x36c/0x43c fs/namei.c:1655
 walk_component fs/namei.c:1994 [inline]
 link_path_walk+0x524/0xcc8 fs/namei.c:2325
 path_openat+0x1c8/0x2548 fs/namei.c:3781
 do_filp_open+0x1bc/0x3cc fs/namei.c:3812
 do_sys_openat2+0x128/0x3d8 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the object at ffff0000f1ab8840
 which belongs to the cache radix_tree_node of size 576
The buggy address is located 80 bytes inside of
 576-byte region [ffff0000f1ab8840, ffff0000f1ab8a80)

The buggy address belongs to the physical page:
page:0000000082ba2c41 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x131ab8
head:0000000082ba2c41 order:2 compound_mapcount:0 compound_pincount:0
memcg:ffff0000c4218c01
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc0003015b00 dead000000000003 ffff0000c000d500
raw: 0000000000000000 0000000080170017 00000001ffffffff ffff0000c4218c01
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000f1ab8780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff0000f1ab8800: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
>ffff0000f1ab8880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff0000f1ab8900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000f1ab8980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 0

ERROR: (device loop0): remounting filesystem as read-only
ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1

ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 2

ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 3

ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 4