loop1: detected capacity change from 0 to 512
==================================================================
BUG: KASAN: use-after-free in __ext4_iget+0x254/0x31c4 fs/ext4/inode.c:4641
Read of size 8 at addr ffff000123fa0c80 by task syz-executor.1/29133

CPU: 0 PID: 29133 Comm: syz-executor.1 Not tainted 5.15.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309
 __ext4_iget+0x254/0x31c4 fs/ext4/inode.c:4641
 ext4_fill_super+0x690c/0x8768 fs/ext4/super.c:4832
 mount_bdev+0x274/0x370 fs/super.c:1387
 ext4_mount+0x44/0x58 fs/ext4/super.c:6582
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1517
 do_new_mount+0x25c/0x8c4 fs/namespace.c:2994
 path_mount+0x594/0x101c fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount fs/namespace.c:3522 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3522
 __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:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 28741:
 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
 reiserfs_alloc_inode+0x24/0xbc fs/reiserfs/super.c:642
 alloc_inode fs/inode.c:236 [inline]
 new_inode_pseudo+0x68/0x200 fs/inode.c:937
 new_inode+0x38/0x174 fs/inode.c:966
 reiserfs_create+0x174/0x5a4 fs/reiserfs/namei.c:643
 lookup_open fs/namei.c:3392 [inline]
 open_last_lookups fs/namei.c:3462 [inline]
 path_openat+0xec0/0x26f0 fs/namei.c:3669
 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699
 do_sys_openat2+0x128/0x3d8 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_openat fs/open.c:1243 [inline]
 __se_sys_openat fs/open.c:1238 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238
 __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:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Last potentially related work creation:
 kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
 kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2994 [inline]
 call_rcu+0x118/0xb40 kernel/rcu/tree.c:3074
 destroy_inode fs/inode.c:291 [inline]
 evict+0x5fc/0x68c fs/inode.c:602
 dispose_list fs/inode.c:620 [inline]
 evict_inodes+0x6b4/0x74c fs/inode.c:670
 generic_shutdown_super+0x9c/0x29c fs/super.c:454
 kill_block_super+0x70/0xdc fs/super.c:1414
 reiserfs_kill_sb+0x134/0x14c fs/reiserfs/super.c:570
 deactivate_locked_super+0xb8/0x13c fs/super.c:335
 deactivate_super+0x108/0x128 fs/super.c:366
 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150
 task_work_run+0x130/0x1e4 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Second to last potentially related work creation:
 kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
 kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2994 [inline]
 call_rcu+0x118/0xb40 kernel/rcu/tree.c:3074
 destroy_inode fs/inode.c:291 [inline]
 evict+0x5fc/0x68c fs/inode.c:602
 dispose_list fs/inode.c:620 [inline]
 evict_inodes+0x6b4/0x74c fs/inode.c:670
 generic_shutdown_super+0x9c/0x29c fs/super.c:454
 kill_block_super+0x70/0xdc fs/super.c:1414
 reiserfs_kill_sb+0x134/0x14c fs/reiserfs/super.c:570
 deactivate_locked_super+0xb8/0x13c fs/super.c:335
 deactivate_super+0x108/0x128 fs/super.c:366
 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150
 task_work_run+0x130/0x1e4 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff000123fa06a0
 which belongs to the cache reiser_inode_cache of size 1568
The buggy address is located 1504 bytes inside of
 1568-byte region [ffff000123fa06a0, ffff000123fa0cc0)
The buggy address belongs to the page:
page:0000000091320e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000123fa7740 pfn:0x163fa0
head:0000000091320e00 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff0000dc419201
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 0000000100000001 ffff0000c0b3e780
raw: ffff000123fa7740 0000000080130003 00000001ffffffff ffff0000dc419201
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff000123fa0b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff000123fa0c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff000123fa0c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                   ^
 ffff000123fa0d00: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff000123fa0d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
EXT4-fs error (device loop1): ext4_fill_super:4832: inode #2: comm syz-executor.1: unexpected EA_INODE flag
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
loop1: detected capacity change from 0 to 512
EXT4-fs (loop1): 1 truncate cleaned up
EXT4-fs (loop1): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000000000,delalloc,i_version,nombcache,norecovery,grpquota,,errors=continue. Quota mode: writeback.