==================================================================
BUG: KASAN: use-after-free in check_igot_inode fs/ext4/inode.c:-1 [inline]
BUG: KASAN: use-after-free in __ext4_iget+0x2b5/0x3cb0 fs/ext4/inode.c:4703
Read of size 8 at addr ffff8881319ed9e8 by task syz.3.1299/5042

CPU: 0 PID: 5042 Comm: syz.3.1299 Not tainted 5.15.180-syzkaller-00222-g57b1420d5e49 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0xf1/0x140 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 check_igot_inode fs/ext4/inode.c:-1 [inline]
 __ext4_iget+0x2b5/0x3cb0 fs/ext4/inode.c:4703
 ext4_quota_enable fs/ext4/super.c:6403 [inline]
 ext4_enable_quotas+0x33b/0x6d0 fs/ext4/super.c:6439
 ext4_fill_super+0x8761/0x9030 fs/ext4/super.c:4951
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 ext4_mount+0x34/0x40 fs/ext4/super.c:6618
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
 do_new_mount+0x25a/0xa20 fs/namespace.c:3013
 path_mount+0x675/0x1020 fs/namespace.c:3343
 do_mount fs/namespace.c:3356 [inline]
 __do_sys_mount fs/namespace.c:3564 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3541
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3541
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1f14be910a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1f1320de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1f1320def0 RCX: 00007f1f14be910a
RDX: 0000200000000400 RSI: 0000200000000280 RDI: 00007f1f1320deb0
RBP: 0000200000000400 R08: 00007f1f1320def0 R09: 0000000000000004
R10: 0000000000000004 R11: 0000000000000246 R12: 0000200000000280
R13: 00007f1f1320deb0 R14: 00000000000004fa R15: 0000200000000f80
 </TASK>

Allocated by task 4605:
 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+0xbd/0xf0 mm/kasan/common.c:466
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x4f/0x2b0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3240 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc+0xf7/0x260 mm/slub.c:3255
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2802 [inline]
 f2fs_alloc_inode+0x26/0x330 fs/f2fs/super.c:1406
 alloc_inode fs/inode.c:261 [inline]
 iget_locked+0x16c/0x7e0 fs/inode.c:1308
 f2fs_iget+0x55/0x5130 fs/f2fs/inode.c:510
 f2fs_fill_super+0x45c7/0x6d10 fs/f2fs/super.c:4373
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4622
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
 do_new_mount+0x25a/0xa20 fs/namespace.c:3013
 path_mount+0x675/0x1020 fs/namespace.c:3343
 do_mount fs/namespace.c:3356 [inline]
 __do_sys_mount fs/namespace.c:3564 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3541
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3541
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu_common kernel/rcu/tree.c:3007 [inline]
 call_rcu+0xf6/0xf60 kernel/rcu/tree.c:3125
 destroy_inode fs/inode.c:316 [inline]
 evict+0x7da/0x870 fs/inode.c:662
 iput_final fs/inode.c:1769 [inline]
 iput+0x635/0x7c0 fs/inode.c:1795
 f2fs_put_super+0x643/0xc00 fs/f2fs/super.c:1637
 generic_shutdown_super+0x151/0x330 fs/super.c:475
 kill_block_super+0x7f/0xf0 fs/super.c:1427
 kill_f2fs_super+0x2e7/0x390 fs/f2fs/super.c:4654
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Second to last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu_common kernel/rcu/tree.c:3007 [inline]
 call_rcu+0xf6/0xf60 kernel/rcu/tree.c:3125
 destroy_inode fs/inode.c:316 [inline]
 evict+0x7da/0x870 fs/inode.c:662
 iput_final fs/inode.c:1769 [inline]
 iput+0x635/0x7c0 fs/inode.c:1795
 f2fs_put_super+0x684/0xc00 fs/f2fs/super.c:1640
 generic_shutdown_super+0x151/0x330 fs/super.c:475
 kill_block_super+0x7f/0xf0 fs/super.c:1427
 kill_f2fs_super+0x2e7/0x390 fs/f2fs/super.c:4654
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff8881319ed4e0
 which belongs to the cache f2fs_inode_cache of size 1424
The buggy address is located 1288 bytes inside of
 1424-byte region [ffff8881319ed4e0, ffff8881319eda70)
The buggy address belongs to the page:
page:ffffea0004c67a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8881319e8c20 pfn:0x1319e8
head:ffffea0004c67a00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 0000000100000001 ffff8881081f7980
raw: ffff8881319e8c20 0000000080150014 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 604, ts 51313886052, free_ts 0
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x2cc5/0x2d50 mm/page_alloc.c:4485
 __alloc_pages+0x18f/0x440 mm/page_alloc.c:5781
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0xa1/0x4d0 mm/slub.c:1995
 ___slab_alloc+0x381/0x810 mm/slub.c:3028
 __slab_alloc+0x49/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc+0x138/0x260 mm/slub.c:3255
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2802 [inline]
 f2fs_alloc_inode+0x26/0x330 fs/f2fs/super.c:1406
 alloc_inode fs/inode.c:261 [inline]
 iget_locked+0x16c/0x7e0 fs/inode.c:1308
 f2fs_iget+0x55/0x5130 fs/f2fs/inode.c:510
 f2fs_fill_super+0x45c7/0x6d10 fs/f2fs/super.c:4373
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4622
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881319ed880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881319ed900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881319ed980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff8881319eda00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
 ffff8881319eda80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc 00 00
==================================================================
EXT4-fs warning (device loop3): ext4_enable_quotas:6447: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix.
EXT4-fs (loop3): mount failed