==================================================================
BUG: KASAN: use-after-free in __ext4_iget+0x2ee/0x3f00 fs/ext4/inode.c:4682
Read of size 8 at addr ffff888136a88b88 by task syz-executor.4/1996

CPU: 0 PID: 1996 Comm: syz-executor.4 Not tainted 5.15.120-syzkaller-00229-g748fd0d9ca0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description+0x87/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 __ext4_iget+0x2ee/0x3f00 fs/ext4/inode.c:4682
 ext4_quota_enable fs/ext4/super.c:6363 [inline]
 ext4_enable_quotas+0x556/0x980 fs/ext4/super.c:6399
 ext4_fill_super+0x8b32/0x9680 fs/ext4/super.c:4950
 mount_bdev+0x282/0x3b0 fs/super.c:1378
 ext4_mount+0x34/0x40 fs/ext4/super.c:6578
 legacy_get_tree+0xf1/0x190 fs/fs_context.c:610
 vfs_get_tree+0x88/0x290 fs/super.c:1508
 do_new_mount+0x28b/0xad0 fs/namespace.c:2994
 path_mount+0x671/0x1070 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3522
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f8d2a4401ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8d291c0ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8d291c0f80 RCX: 00007f8d2a4401ea
RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f8d291c0f40
RBP: 00000000200004c0 R08: 00007f8d291c0f80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000500
R13: 00007f8d291c0f40 R14: 00000000000004a9 R15: 0000000020000540
 </TASK>

Allocated by task 2060:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3240 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2776 [inline]
 f2fs_alloc_inode+0x26/0x3f0 fs/f2fs/super.c:1373
 alloc_inode fs/inode.c:236 [inline]
 iget_locked+0x174/0x860 fs/inode.c:1202
 f2fs_iget+0x55/0x4df0 fs/f2fs/inode.c:489
 f2fs_lookup+0x410/0xd80 fs/f2fs/namei.c:551
 __lookup_slow+0x2b9/0x400 fs/namei.c:1659
 lookup_slow+0x5a/0x80 fs/namei.c:1676
 walk_component+0x48c/0x610 fs/namei.c:1972
 lookup_last fs/namei.c:2427 [inline]
 path_lookupat+0x16d/0x450 fs/namei.c:2451
 filename_lookup+0x230/0x5c0 fs/namei.c:2480
 user_path_at_empty+0x43/0x1a0 fs/namei.c:2853
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0xfd/0x720 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 vfs_lstat include/linux/fs.h:3381 [inline]
 __do_sys_newlstat fs/stat.c:397 [inline]
 __se_sys_newlstat+0xba/0x780 fs/stat.c:391
 __x64_sys_newlstat+0x5b/0x70 fs/stat.c:391
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2994 [inline]
 call_rcu+0x133/0x12a0 kernel/rcu/tree.c:3074
 destroy_inode fs/inode.c:291 [inline]
 evict+0x5df/0x630 fs/inode.c:602
 dispose_list fs/inode.c:620 [inline]
 evict_inodes+0x5db/0x660 fs/inode.c:670
 generic_shutdown_super+0x9c/0x2e0 fs/super.c:454
 kill_block_super+0x7e/0xe0 fs/super.c:1405
 kill_f2fs_super+0x2f9/0x3c0 fs/f2fs/super.c:4583
 deactivate_locked_super+0xad/0x110 fs/super.c:335
 deactivate_super+0xbe/0xf0 fs/super.c:366
 cleanup_mnt+0x45c/0x510 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x129/0x190 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:175
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888136a88648
 which belongs to the cache f2fs_inode_cache of size 1480
The buggy address is located 1344 bytes inside of
 1480-byte region [ffff888136a88648, ffff888136a88c10)
The buggy address belongs to the page:
page:ffffea0004daa200 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888136a8e480 pfn:0x136a88
head:ffffea0004daa200 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffff8881029fa710 ffffea0005005808 ffff888103d8e300
raw: ffff888136a8e480 0000000000140001 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 1170, ts 72806605861, free_ts 0
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2600
 prep_new_page mm/page_alloc.c:2606 [inline]
 get_page_from_freelist+0x2ed2/0x2f90 mm/page_alloc.c:4474
 __alloc_pages+0x206/0x5e0 mm/page_alloc.c:5765
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0x9a/0x4e0 mm/slub.c:1995
 ___slab_alloc+0x39e/0x830 mm/slub.c:3028
 __slab_alloc+0x4a/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0x134/0x200 mm/slub.c:3253
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2776 [inline]
 f2fs_alloc_inode+0x26/0x3f0 fs/f2fs/super.c:1373
 alloc_inode fs/inode.c:236 [inline]
 iget_locked+0x174/0x860 fs/inode.c:1202
 f2fs_iget+0x55/0x4df0 fs/f2fs/inode.c:489
 f2fs_fill_super+0x4edd/0x81a0 fs/f2fs/super.c:4196
 mount_bdev+0x282/0x3b0 fs/super.c:1378
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4551
 legacy_get_tree+0xf1/0x190 fs/fs_context.c:610
 vfs_get_tree+0x88/0x290 fs/super.c:1508
 do_new_mount+0x28b/0xad0 fs/namespace.c:2994
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888136a88a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888136a88b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888136a88b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff888136a88c00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888136a88c80: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
EXT4-fs warning (device loop4): ext4_enable_quotas:6407: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix.
EXT4-fs (loop4): mount failed