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BUG: KASAN: slab-use-after-free in xfs_inode_item_push+0x3c3/0x6d0 fs/xfs/xfs_inode_item.c:800
Read of size 8 at addr ffff88806b28b7e0 by task xfsaild/loop9/21078

CPU: 0 UID: 0 PID: 21078 Comm: xfsaild/loop9 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x230 mm/kasan/report.c:480
 kasan_report+0x118/0x150 mm/kasan/report.c:593
 xfs_inode_item_push+0x3c3/0x6d0 fs/xfs/xfs_inode_item.c:800
 xfsaild_push_item fs/xfs/xfs_trans_ail.c:390 [inline]
 xfsaild_push fs/xfs/xfs_trans_ail.c:518 [inline]
 xfsaild+0xd95/0x2940 fs/xfs/xfs_trans_ail.c:700
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 21079:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4148 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4204
 xfs_inode_item_init+0x33/0xc0 fs/xfs/xfs_inode_item.c:895
 xfs_trans_ijoin+0xe5/0x130 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_trans_alloc_dir+0x166/0x620 fs/xfs/xfs_trans.c:1391
 xfs_link+0x43f/0xa00 fs/xfs/xfs_inode.c:918
 xfs_vn_link+0x174/0x270 fs/xfs/xfs_iops.c:394
 vfs_link+0x4ed/0x6e0 fs/namei.c:4863
 do_linkat+0x272/0x560 fs/namei.c:4933
 __do_sys_link fs/namei.c:4967 [inline]
 __se_sys_link fs/namei.c:4965 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4965
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 23:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kmem_cache_free+0x18f/0x400 mm/slub.c:4745
 xfs_inode_free_callback+0x14f/0x1c0 fs/xfs/xfs_icache.c:161
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0xca8/0x1710 kernel/rcu/tree.c:2832
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:164
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88806b28b7b0
 which belongs to the cache xfs_ili of size 264
The buggy address is located 48 bytes inside of
 freed 264-byte region [ffff88806b28b7b0, ffff88806b28b8b8)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88806b28b000 pfn:0x6b28b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801e79aa00 dead000000000122 0000000000000000
raw: ffff88806b28b000 00000000800c0006 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_RECLAIMABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 8084, tgid 8083 (syz.5.435), ts 288355260080, free_ts 282689522620
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab+0x8a/0x3b0 mm/slub.c:2619
 new_slab mm/slub.c:2673 [inline]
 ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859
 __slab_alloc mm/slub.c:3949 [inline]
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 kmem_cache_alloc_noprof+0x283/0x3c0 mm/slub.c:4204
 xfs_inode_item_init+0x33/0xc0 fs/xfs/xfs_inode_item.c:895
 xfs_trans_ijoin+0xe5/0x130 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_icreate+0xe4/0x160 fs/xfs/xfs_inode.c:605
 xfs_qm_qino_alloc+0x232/0x6a0 fs/xfs/xfs_qm.c:1013
 xfs_qm_init_quotainos+0x4f2/0x6b0 fs/xfs/xfs_qm.c:1844
 xfs_qm_init_quotainfo+0x181/0x1160 fs/xfs/xfs_qm.c:839
 xfs_qm_mount_quotas+0xa6/0x670 fs/xfs/xfs_qm.c:1679
 xfs_mountfs+0x1b6f/0x2330 fs/xfs/xfs_mount.c:1186
 xfs_fs_fill_super+0x11b3/0x1600 fs/xfs/xfs_super.c:1965
page last free pid 8006 tgid 8006 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706
 discard_slab mm/slub.c:2717 [inline]
 __put_partials+0x161/0x1c0 mm/slub.c:3186
 put_cpu_partial+0x17c/0x250 mm/slub.c:3261
 __slab_free+0x2f7/0x400 mm/slub.c:4513
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4148 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 __kmalloc_cache_noprof+0x1be/0x3d0 mm/slub.c:4354
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 ref_tracker_alloc+0x133/0x460 lib/ref_tracker.c:203
 __netdev_tracker_alloc include/linux/netdevice.h:4341 [inline]
 netdev_hold include/linux/netdevice.h:4370 [inline]
 netdev_queue_add_kobject net/core/net-sysfs.c:1973 [inline]
 netdev_queue_update_kobjects+0x1d1/0x6c0 net/core/net-sysfs.c:2035
 register_queue_kobjects net/core/net-sysfs.c:2098 [inline]
 netdev_register_kobject+0x236/0x2f0 net/core/net-sysfs.c:2340
 register_netdevice+0x126c/0x1ae0 net/core/dev.c:11105
 team_newlink+0x114/0x160 drivers/net/team/team_core.c:2231
 rtnl_newlink_create+0x310/0xb00 net/core/rtnetlink.c:3823
 __rtnl_newlink net/core/rtnetlink.c:3940 [inline]
 rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944

Memory state around the buggy address:
 ffff88806b28b680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88806b28b700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
>ffff88806b28b780: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb
                                                       ^
 ffff88806b28b800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88806b28b880: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00
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