loop0: detected capacity change from 0 to 32768
xfs: Deprecated parameter 'ikeep'
XFS: ikeep mount option is deprecated.
XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791
XFS (loop0): Ending clean mount
XFS (loop0): Quotacheck needed: Please wait.
XFS (loop0): Quotacheck: Done.
loop0: detected capacity change from 32768 to 0
XFS (loop0): metadata I/O error in "xfs_btree_read_buf_block+0x2ae/0x4a0" at daddr 0x18 len 4 error 5
==================================================================
BUG: KASAN: slab-use-after-free in xfs_defer_item_unpause+0x116/0x250 fs/xfs/libxfs/xfs_defer.c:1255
Read of size 4 at addr ffff8880464b163c by task syz.0.0/5343

CPU: 0 UID: 0 PID: 5343 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 xfs_defer_item_unpause+0x116/0x250 fs/xfs/libxfs/xfs_defer.c:1255
 xrep_newbt_free+0x3fe/0x5f0 fs/xfs/scrub/newbt.c:522
 xrep_refc_build_new_tree+0x377/0x6d0 fs/xfs/scrub/refcount_repair.c:663
 xrep_refcountbt+0x16b/0x1f0 fs/xfs/scrub/refcount_repair.c:727
 xrep_attempt+0x17c/0x7b0 fs/xfs/scrub/repair.c:78
 xfs_scrub_metadata+0xce4/0x1910 fs/xfs/scrub/scrub.c:747
 xfs_ioc_scrubv_metadata+0x7ac/0xb70 fs/xfs/scrub/scrub.c:980
 xfs_file_ioctl+0x6f9/0xf40 fs/xfs/xfs_ioctl.c:1520
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7e7d9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd7e8c84fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd7e8025fa0 RCX: 00007fd7e7d9f559
RDX: 0000200000013340 RSI: 00000000c0285840 RDI: 0000000000000006
RBP: 00007fd7e7e36b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd7e8026038 R14: 00007fd7e8025fa0 R15: 00007fff394cecc8
 </TASK>

Allocated by task 5343:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:351 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:377
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4720 [inline]
 slab_alloc_node mm/slub.c:5033 [inline]
 kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5047
 xfs_defer_alloc fs/xfs/libxfs/xfs_defer.c:842 [inline]
 xfs_defer_add+0x143/0x480 fs/xfs/libxfs/xfs_defer.c:870
 xfs_extent_free_defer_add+0x1bf/0x3b0 fs/xfs/xfs_extfree_item.c:507
 xfs_defer_extent_free+0x2a8/0x400 fs/xfs/libxfs/xfs_alloc.c:2729
 xfs_alloc_schedule_autoreap+0xb0/0x170 fs/xfs/libxfs/xfs_alloc.c:2774
 xrep_newbt_add_blocks+0x22a/0x3f0 fs/xfs/scrub/newbt.c:211
 xrep_newbt_alloc_ag_blocks+0x82e/0xcd0 fs/xfs/scrub/newbt.c:311
 xrep_refc_build_new_tree+0x29f/0x6d0 fs/xfs/scrub/refcount_repair.c:620
 xrep_refcountbt+0x16b/0x1f0 fs/xfs/scrub/refcount_repair.c:727
 xrep_attempt+0x17c/0x7b0 fs/xfs/scrub/repair.c:78
 xfs_scrub_metadata+0xce4/0x1910 fs/xfs/scrub/scrub.c:747
 xfs_ioc_scrubv_metadata+0x7ac/0xb70 fs/xfs/scrub/scrub.c:980
 xfs_file_ioctl+0x6f9/0xf40 fs/xfs/xfs_ioctl.c:1520
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5343:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2780 [inline]
 slab_free mm/slub.c:6630 [inline]
 kmem_cache_free+0x182/0x650 mm/slub.c:6757
 xfs_defer_cancel_list fs/xfs/libxfs/xfs_defer.c:504 [inline]
 xfs_defer_finish_noroll+0xf8b/0x14e0 fs/xfs/libxfs/xfs_defer.c:736
 xfs_defer_finish+0x1c/0x180 fs/xfs/libxfs/xfs_defer.c:754
 xrep_defer_finish+0x16e/0x240 fs/xfs/scrub/repair.c:242
 xrep_newbt_alloc_ag_blocks+0x87c/0xcd0 fs/xfs/scrub/newbt.c:318
 xrep_refc_build_new_tree+0x29f/0x6d0 fs/xfs/scrub/refcount_repair.c:620
 xrep_refcountbt+0x16b/0x1f0 fs/xfs/scrub/refcount_repair.c:727
 xrep_attempt+0x17c/0x7b0 fs/xfs/scrub/repair.c:78
 xfs_scrub_metadata+0xce4/0x1910 fs/xfs/scrub/scrub.c:747
 xfs_ioc_scrubv_metadata+0x7ac/0xb70 fs/xfs/scrub/scrub.c:980
 xfs_file_ioctl+0x6f9/0xf40 fs/xfs/xfs_ioctl.c:1520
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880464b1600
 which belongs to the cache xfs_defer_pending of size 64
The buggy address is located 60 bytes inside of
 freed 64-byte region [ffff8880464b1600, ffff8880464b1640)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880464b16c0 pfn:0x464b1
flags: 0x4fff00000000200(workingset|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000200 ffff888033a8adc0 ffff888033d03288 ffff888033d03288
raw: ffff8880464b16c0 00000002002a0012 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 79, tgid 79 (kworker/u4:5), ts 89594444834
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1854
 prep_new_page mm/page_alloc.c:1862 [inline]
 get_page_from_freelist+0x220f/0x2280 mm/page_alloc.c:3933
 __alloc_frozen_pages_noprof+0x1fc/0x400 mm/page_alloc.c:5429
 alloc_slab_page mm/slub.c:3384 [inline]
 allocate_slab+0x7d/0x5e0 mm/slub.c:3499
 new_slab mm/slub.c:3550 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7539
 refill_sheaf mm/slub.c:2917 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4811
 alloc_from_pcs mm/slub.c:4887 [inline]
 slab_alloc_node mm/slub.c:5021 [inline]
 kmem_cache_alloc_noprof+0x394/0x600 mm/slub.c:5047
 xfs_defer_alloc fs/xfs/libxfs/xfs_defer.c:842 [inline]
 xfs_defer_add+0x143/0x480 fs/xfs/libxfs/xfs_defer.c:870
 xfs_bmap_add_extent_hole_real+0xd61/0x1a40 fs/xfs/libxfs/xfs_bmap.c:2781
 xfs_bmapi_allocate+0x248c/0x2f20 fs/xfs/libxfs/xfs_bmap.c:3977
 xfs_bmapi_write+0x843/0x1330 fs/xfs/libxfs/xfs_bmap.c:4267
 xfs_dquot_disk_alloc+0x4b1/0xae0 fs/xfs/xfs_dquot.c:395
 xfs_qm_dqread+0xfe/0x520 fs/xfs/xfs_dquot.c:734
 xfs_qm_dqget+0x18a/0x3d0 fs/xfs/xfs_dquot.c:937
 xfs_qm_quotacheck_dqadjust+0xd6/0x520 fs/xfs/xfs_qm.c:1291
 xfs_qm_dqusage_adjust+0x518/0x670 fs/xfs/xfs_qm.c:1423
page last free pid 5302 tgid 5302 ts 83431080187 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 __free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2952
 __slab_free+0x269/0x2c0 mm/slub.c:5926
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4720 [inline]
 slab_alloc_node mm/slub.c:5033 [inline]
 __do_kmalloc_node mm/slub.c:5530 [inline]
 __kmalloc_noprof+0x302/0x710 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 tomoyo_add_entry security/tomoyo/common.c:2166 [inline]
 tomoyo_supervisor+0xc4e/0x1550 security/tomoyo/common.c:2238
 tomoyo_audit_path_log security/tomoyo/file.c:169 [inline]
 tomoyo_path_permission+0x262/0x3b0 security/tomoyo/file.c:592
 tomoyo_path_perm+0x3f3/0x560 security/tomoyo/file.c:843
 security_inode_getattr+0x12b/0x310 security/security.c:1917
 vfs_getattr fs/stat.c:263 [inline]
 vfs_fstat fs/stat.c:285 [inline]
 __do_sys_newfstat fs/stat.c:555 [inline]
 __se_sys_newfstat+0x133/0x440 fs/stat.c:550
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8880464b1500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880464b1580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880464b1600: fa fb fb fb fb fb fb fb fc fc fc fc fa fb fb fb
                                        ^
 ffff8880464b1680: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880464b1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================