loop0: detected capacity change from 0 to 32768
XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791
XFS (loop0): Torn write (CRC failure) detected at log block 0x180. Truncating head block from 0x200.
XFS (loop0): Starting recovery (logdev: internal)
==================================================================
BUG: KASAN: slab-out-of-bounds in xfs_btree_lookup_get_block+0x12d/0x680
Read of size 8 at addr ffff888070481258 by task syz-executor.0/5563

CPU: 0 PID: 5563 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 <TASK>
 dump_stack_lvl+0x12e/0x1d0
 print_report+0x163/0x4c0
 kasan_report+0xce/0x100
 xfs_btree_lookup_get_block+0x12d/0x680
 xfs_btree_lookup+0x2f7/0xfe0
 xfs_btree_simple_query_range+0xde/0x5a0
 xfs_btree_query_range+0x2b7/0x360
 xfs_refcount_recover_cow_leftovers+0x29a/0xc00
 xfs_reflink_recover_cow+0x7e/0x140
 xlog_recover_finish+0x71f/0x7f0
 xfs_log_mount_finish+0x1c1/0x360
 xfs_mountfs+0x116e/0x1cd0
 xfs_fs_fill_super+0xb55/0xed0
 get_tree_bdev+0x3d7/0x620
 vfs_get_tree+0x7f/0x220
 do_new_mount+0x1e5/0x940
 __se_sys_mount+0x20d/0x2a0
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f377968d5da
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f377a3c3f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000009712 RCX: 00007f377968d5da
RDX: 0000000020000100 RSI: 0000000020009640 RDI: 00007f377a3c3fe0
RBP: 00007f377a3c4020 R08: 00007f377a3c4020 R09: 0000000000200800
R10: 0000000000200800 R11: 0000000000000246 R12: 0000000020000100
R13: 0000000020009640 R14: 00007f377a3c3fe0 R15: 0000000020000240
 </TASK>

The buggy address belongs to the object at ffff888070481210
 which belongs to the cache xfs_refcbt_cur of size 200
The buggy address is located 72 bytes inside of
 200-byte region [ffff888070481210, ffff8880704812d8)

The buggy address belongs to the physical page:
page:ffffea0001c12040 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x70481
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffff8881408c0500 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800f000f 00000001ffffffff 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 0x112c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5563, tgid 5562 (syz-executor.0), ts 76548179324, free_ts 76544345667
 get_page_from_freelist+0x3434/0x35b0
 __alloc_pages+0x291/0x7f0
 alloc_slab_page+0x6a/0x160
 new_slab+0x84/0x2f0
 ___slab_alloc+0xa07/0x1000
 kmem_cache_alloc+0x1b0/0x280
 xfs_refcountbt_init_cursor+0x82/0x340
 xfs_refcount_recover_cow_leftovers+0x1e0/0xc00
 xfs_reflink_recover_cow+0x7e/0x140
 xlog_recover_finish+0x71f/0x7f0
 xfs_log_mount_finish+0x1c1/0x360
 xfs_mountfs+0x116e/0x1cd0
 xfs_fs_fill_super+0xb55/0xed0
 get_tree_bdev+0x3d7/0x620
 vfs_get_tree+0x7f/0x220
 do_new_mount+0x1e5/0x940
page last free stack trace:
 __free_pages_ok+0xcda/0xd40
 free_large_kmalloc+0xef/0x180
 xlog_do_recovery_pass+0x994/0xc00
 xlog_do_log_recovery+0x4c/0x60
 xlog_do_recover+0x11e/0x4e0
 xlog_recover+0x386/0x450
 xfs_log_mount+0x331/0x640
 xfs_mountfs+0xb36/0x1cd0
 xfs_fs_fill_super+0xb55/0xed0
 get_tree_bdev+0x3d7/0x620
 vfs_get_tree+0x7f/0x220
 do_new_mount+0x1e5/0x940
 __se_sys_mount+0x20d/0x2a0
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff888070481100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888070481180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888070481200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                    ^
 ffff888070481280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888070481300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================