REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 hash to sort names
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
==================================================================
BUG: KASAN: use-after-free in reiserfs_release_objectid+0x510/0x770 fs/reiserfs/objectid.c:165
Read of size 14568 at addr ffff88806ff970d0 by task syz-executor.0/5449

CPU: 0 PID: 5449 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller-12921-ga3c57ab79a06 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x175/0x1b0 mm/kasan/report.c:588
 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187
 __asan_memmove+0x29/0x70 mm/kasan/shadow.c:94
 reiserfs_release_objectid+0x510/0x770 fs/reiserfs/objectid.c:165
 remove_save_link+0x357/0x540 fs/reiserfs/super.c:542
 reiserfs_evict_inode+0x362/0x470 fs/reiserfs/inode.c:91
 evict+0x2a4/0x620 fs/inode.c:664
 delete_one_xattr+0x29b/0x2f0
 reiserfs_for_each_xattr+0x417/0xb40 fs/reiserfs/xattr.c:279
 reiserfs_delete_xattrs+0x1f/0x90 fs/reiserfs/xattr.c:365
 reiserfs_evict_inode+0x210/0x470 fs/reiserfs/inode.c:53
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x1f3/0x420 fs/dcache.c:913
 do_renameat2+0xd85/0x1660 fs/namei.c:5014
 __do_sys_rename fs/namei.c:5058 [inline]
 __se_sys_rename fs/namei.c:5056 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:5056
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f774867c859
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f774944c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f774879bf80 RCX: 00007f774867c859
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000020000140
RBP: 00007f77486d8ad0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f774879bf80 R15: 00007ffd2d5e2468
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0001bfe5c0 refcount:2 mapcount:0 mapping:ffff88801ac541f8 index:0x10 pfn:0x6ff97
memcg:ffff88802240c000
aops:def_blk_aops ino:700000
flags: 0xfff00000008124(referenced|lru|active|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000008124 ffffea0001bfdec8 ffffea0001bfd908 ffff88801ac541f8
raw: 0000000000000010 ffff88807e41aae0 00000002ffffffff ffff88802240c000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 5449, tgid 5448 (syz-executor.0), ts 73730036748, free_ts 73720343792
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 folio_alloc+0x1e/0x60 mm/mempolicy.c:2308
 filemap_alloc_folio+0xde/0x500 mm/filemap.c:976
 __filemap_get_folio+0x431/0xbb0 mm/filemap.c:1936
 grow_dev_page fs/buffer.c:1058 [inline]
 grow_buffers fs/buffer.c:1118 [inline]
 __getblk_slow fs/buffer.c:1145 [inline]
 __getblk_gfp+0x218/0x630 fs/buffer.c:1439
 __bread_gfp+0x2e/0x380 fs/buffer.c:1473
 sb_bread include/linux/buffer_head.h:323 [inline]
 read_super_block+0x91/0x800 fs/reiserfs/super.c:1604
 reiserfs_fill_super+0x912/0x2620 fs/reiserfs/super.c:1966
 mount_bdev+0x237/0x300 fs/super.c:1629
 legacy_get_tree+0xef/0x190 fs/fs_context.c:638
 vfs_get_tree+0x8c/0x280 fs/super.c:1750
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 tlb_batch_pages_flush mm/mmu_gather.c:98 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline]
 tlb_flush_mmu+0x34c/0x4e0 mm/mmu_gather.c:300
 tlb_finish_mmu+0xd4/0x1f0 mm/mmu_gather.c:392
 unmap_region+0x300/0x350 mm/mmap.c:2318
 do_vmi_align_munmap+0x11c2/0x17f0 mm/mmap.c:2555
 do_vmi_munmap+0x24d/0x2d0 mm/mmap.c:2623
 __vm_munmap+0x230/0x450 mm/mmap.c:2908
 __do_sys_munmap mm/mmap.c:2925 [inline]
 __se_sys_munmap mm/mmap.c:2922 [inline]
 __x64_sys_munmap+0x69/0x80 mm/mmap.c:2922
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88806ff98f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88806ff98f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88806ff99000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88806ff99080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88806ff99100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================