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BUG: KASAN: use-after-free in xfs_iflush_cluster+0xad/0x12a0
Read of size 8 at addr ffff8880740e87d0 by task xfsaild/loop7/7516

CPU: 0 PID: 7516 Comm: xfsaild/loop7 Not tainted 5.15.170-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:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 print_address_description+0x63/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
 xfs_iflush_cluster+0xad/0x12a0
 xfs_inode_item_push+0x1cd/0x2c0 fs/xfs/xfs_inode_item.c:567
 xfsaild_push_item fs/xfs/xfs_trans_ail.c:414 [inline]
 xfsaild_push fs/xfs/xfs_trans_ail.c:472 [inline]
 xfsaild+0xd6d/0x2970 fs/xfs/xfs_trans_ail.c:657
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Allocated by task 7483:
 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+0x8e/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 xfs_inode_item_init+0x2f/0xc0 fs/xfs/xfs_inode_item.c:675
 xfs_trans_ijoin+0xb6/0xe0 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_init_new_inode+0xd8c/0x1100 fs/xfs/xfs_inode.c:918
 xfs_create+0x9b1/0x1370 fs/xfs/xfs_inode.c:1044
 xfs_generic_create+0x426/0xd00 fs/xfs/xfs_iops.c:197
 vfs_mknod+0x444/0x4d0 fs/namei.c:3944
 do_mknodat+0x392/0x690
 __do_sys_mknod fs/namei.c:4027 [inline]
 __se_sys_mknod fs/namei.c:4025 [inline]
 __x64_sys_mknod+0x8a/0xa0 fs/namei.c:4025
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Freed by task 4672:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kmem_cache_free+0x91/0x1f0 mm/slub.c:3515
 xfs_inode_free_callback+0x1bd/0x230 fs/xfs/xfs_icache.c:142
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 do_softirq+0x162/0x240 kernel/softirq.c:459
 __local_bh_enable_ip+0x1b1/0x1f0 kernel/softirq.c:383
 spin_unlock_bh include/linux/spinlock.h:408 [inline]
 netif_addr_unlock_bh include/linux/netdevice.h:4617 [inline]
 dev_uc_del+0xba/0x100 net/core/dev_addr_lists.c:680
 vlan_dev_stop+0x1db/0x330 net/8021q/vlan_dev.c:323
 __dev_close_many+0x2dd/0x3c0 net/core/dev.c:1590
 dev_close_many+0x22a/0x530 net/core/dev.c:1615
 unregister_netdevice_many+0x4b0/0x18f0 net/core/dev.c:11074
 default_device_exit_batch+0x390/0x3f0 net/core/dev.c:11631
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x763/0xb60 net/core/net_namespace.c:599
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

The buggy address belongs to the object at ffff8880740e8780
 which belongs to the cache xfs_ili of size 256
The buggy address is located 80 bytes inside of
 256-byte region [ffff8880740e8780, ffff8880740e8880)
The buggy address belongs to the page:
page:ffffea0001d03a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880740e8280 pfn:0x740e8
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 0000000000000000 dead000000000122 ffff88801e309c80
raw: ffff8880740e8280 00000000800c000b 00000001ffffffff 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 0x112c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4258, ts 65759897775, free_ts 18535691447
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423
 alloc_slab_page mm/slub.c:1775 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xbb/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 xfs_inode_item_init+0x2f/0xc0 fs/xfs/xfs_inode_item.c:675
 xfs_trans_ijoin+0xb6/0xe0 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_init_new_inode+0xd8c/0x1100 fs/xfs/xfs_inode.c:918
 xfs_qm_qino_alloc+0x516/0x9c0 fs/xfs/xfs_qm.c:790
 xfs_qm_init_quotainos+0x61e/0x8a0 fs/xfs/xfs_qm.c:1551
 xfs_qm_init_quotainfo+0xa6/0x970 fs/xfs/xfs_qm.c:644
 xfs_qm_mount_quotas+0x90/0x610 fs/xfs/xfs_qm.c:1435
 xfs_mountfs+0x166a/0x1ce0 fs/xfs/xfs_mount.c:904
 xfs_fs_fill_super+0x11b4/0x1400 fs/xfs/xfs_super.c:1676
 get_tree_bdev+0x3fe/0x620 fs/super.c:1325
 vfs_get_tree+0x88/0x270 fs/super.c:1530
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
 free_contig_range+0x95/0xf0 mm/page_alloc.c:9342
 destroy_args+0xfe/0x980 mm/debug_vm_pgtable.c:1018
 debug_vm_pgtable+0x40d/0x470 mm/debug_vm_pgtable.c:1331
 do_one_initcall+0x22b/0x7a0 init/main.c:1302
 do_initcall_level+0x157/0x210 init/main.c:1375
 do_initcalls+0x49/0x90 init/main.c:1391
 kernel_init_freeable+0x425/0x5c0 init/main.c:1615
 kernel_init+0x19/0x290 init/main.c:1506
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Memory state around the buggy address:
 ffff8880740e8680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880740e8700: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff8880740e8780: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff8880740e8800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880740e8880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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