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BUG: KASAN: slab-use-after-free in xfs_inode_item_push+0x293/0x2e0 fs/xfs/xfs_inode_item.c:780
Read of size 8 at addr ffff88805458d178 by task xfsaild/loop1/9335

CPU: 1 UID: 0 PID: 9335 Comm: xfsaild/loop1 Not tainted 6.13.0-rc1-next-20241205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 xfs_inode_item_push+0x293/0x2e0 fs/xfs/xfs_inode_item.c:780
 xfsaild_push_item fs/xfs/xfs_trans_ail.c:395 [inline]
 xfsaild_push fs/xfs/xfs_trans_ail.c:523 [inline]
 xfsaild+0x1125/0x2dc0 fs/xfs/xfs_trans_ail.c:705
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 9297:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4104 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4160
 xfs_inode_item_init+0x33/0xc0 fs/xfs/xfs_inode_item.c:875
 xfs_trans_ijoin+0xeb/0x130 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_create+0x8a0/0xf50 fs/xfs/xfs_inode.c:732
 xfs_generic_create+0x5d5/0xf50 fs/xfs/xfs_iops.c:215
 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4311
 do_mkdirat+0x264/0x3a0 fs/namei.c:4334
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 24:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2338 [inline]
 slab_free mm/slub.c:4598 [inline]
 kmem_cache_free+0x195/0x410 mm/slub.c:4700
 xfs_inode_free_callback+0x152/0x1d0 fs/xfs/xfs_icache.c:161
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

The buggy address belongs to the object at ffff88805458d148
 which belongs to the cache xfs_ili of size 264
The buggy address is located 48 bytes inside of
 freed 264-byte region [ffff88805458d148, ffff88805458d250)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5458d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88814130f3c0 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x52c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_RECLAIMABLE), pid 7380, tgid 7379 (syz.0.199), ts 170418244880, free_ts 108592641612
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1549
 prep_new_page mm/page_alloc.c:1557 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3475
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4752
 alloc_pages_mpol+0x30e/0x550 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2408 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2574
 new_slab mm/slub.c:2627 [inline]
 ___slab_alloc+0xc27/0x14a0 mm/slub.c:3815
 __slab_alloc+0x58/0xa0 mm/slub.c:3905
 __slab_alloc_node mm/slub.c:3980 [inline]
 slab_alloc_node mm/slub.c:4141 [inline]
 kmem_cache_alloc_noprof+0x268/0x380 mm/slub.c:4160
 xfs_inode_item_init+0x33/0xc0 fs/xfs/xfs_inode_item.c:875
 xfs_trans_ijoin+0xeb/0x130 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_icreate+0x13a/0x1f0 fs/xfs/xfs_inode.c:605
 xfs_qm_qino_alloc+0x2c7/0x770 fs/xfs/xfs_qm.c:998
 xfs_qm_init_quotainos+0x60b/0x8a0 fs/xfs/xfs_qm.c:1829
 xfs_qm_init_quotainfo+0x180/0x1260 fs/xfs/xfs_qm.c:824
 xfs_qm_mount_quotas+0xe9/0x680 fs/xfs/xfs_qm.c:1680
 xfs_mountfs+0x1e60/0x2410 fs/xfs/xfs_mount.c:1030
page last free pid 6218 tgid 6217 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 __free_pages_ok+0xbbf/0xe40 mm/page_alloc.c:1269
 __folio_put+0x2b3/0x360 mm/swap.c:112
 folio_put include/linux/mm.h:1488 [inline]
 free_large_kmalloc+0xfe/0x180 mm/slub.c:4717
 kfree+0x212/0x430 mm/slub.c:4740
 __btree_node_data_free+0x30e/0x550 fs/bcachefs/btree_cache.c:110
 btree_node_data_free fs/bcachefs/btree_cache.c:127 [inline]
 bch2_fs_btree_cache_exit+0xb20/0x1520 fs/bcachefs/btree_cache.c:610
 __bch2_fs_free fs/bcachefs/super.c:559 [inline]
 bch2_fs_release+0x20e/0x7d0 fs/bcachefs/super.c:613
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 bch2_fs_get_tree+0xdc4/0x1740 fs/bcachefs/fs.c:2297
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88805458d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805458d080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805458d100: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb
                                                                ^
 ffff88805458d180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805458d200: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
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