loop0: detected capacity change from 0 to 2048
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop0: detected capacity change from 2048 to 64
==================================================================
BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x92b/0x1ed0 fs/ext4/xattr.c:1767
Read of size 18446744073709551600 at addr ffff888052432eb8 by task syz.0.0/5316

CPU: 0 UID: 0 PID: 5316 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
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x264/0x2c0 mm/kasan/generic.c:200
 __asan_memmove+0x29/0x70 mm/kasan/shadow.c:94
 ext4_xattr_set_entry+0x92b/0x1ed0 fs/ext4/xattr.c:1767
 ext4_xattr_ibody_set+0x262/0x710 fs/ext4/xattr.c:2277
 ext4_destroy_inline_data_nolock+0x23a/0x5f0 fs/ext4/inline.c:471
 ext4_destroy_inline_data+0x83/0xe0 fs/ext4/inline.c:1824
 ext4_do_writepages+0x50a/0x4770 fs/ext4/inode.c:2817
 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
 do_writepages+0x338/0x560 mm/page-writeback.c:2560
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 file_write_and_wait_range+0x36e/0x440 mm/filemap.c:786
 ext4_sync_file+0x252/0xa40 fs/ext4/fsync.c:145
 generic_write_sync include/linux/fs.h:2686 [inline]
 ext4_buffered_write_iter+0x2d0/0x380 fs/ext4/file.c:360
 ext4_file_write_iter+0xae4/0x1cd0 fs/ext4/file.c:-1
 aio_write+0x5d0/0x870 fs/aio.c:1687
 __io_submit_one fs/aio.c:-1 [inline]
 io_submit_one+0x798/0x13d0 fs/aio.c:2106
 __do_sys_io_submit fs/aio.c:2165 [inline]
 __se_sys_io_submit+0x195/0x340 fs/aio.c:2135
 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: 0033:0x7fd8a119e159
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:00007fd8a20cefe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007fd8a1425fa0 RCX: 00007fd8a119e159
RDX: 00002000000002c0 RSI: 0000000000000001 RDI: 00007fd8a208d000
RBP: 00007fd8a123506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd8a1426038 R14: 00007fd8a1425fa0 R15: 00007ffd3cbff3f8
 </TASK>

The buggy address belongs to the physical page:
page: refcount:2 mapcount:0 mapping:ffff88801d025940 index:0x2 pfn:0x52432
memcg:ffff8880426eb400
aops:def_blk_aops ino:700000 dentry name(?):""
flags: 0x4fff58000004234(referenced|dirty|lru|workingset|private|node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff58000004234 ffffea0001001d08 ffffea0001416e48 ffff88801d025940
raw: 0000000000000002 ffff888045080460 00000002ffffffff ffff8880426eb400
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_MOVABLE|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL), pid 5316, tgid 5315 (syz.0.0), ts 77726548609
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
 alloc_pages_mpol+0x21e/0x390 mm/mempolicy.c:2486
 alloc_frozen_pages_noprof mm/mempolicy.c:2557 [inline]
 alloc_pages_noprof+0xb1/0x2b0 mm/mempolicy.c:2577
 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2587
 filemap_alloc_folio_noprof+0x111/0x460 mm/filemap.c:1019
 __filemap_get_folio_mpol+0x402/0x1000 mm/filemap.c:2018
 __filemap_get_folio include/linux/pagemap.h:761 [inline]
 grow_dev_folio fs/buffer.c:858 [inline]
 grow_buffers fs/buffer.c:924 [inline]
 __getblk_slow fs/buffer.c:942 [inline]
 bdev_getblk+0x1f4/0x6e0 fs/buffer.c:1346
 __getblk include/linux/buffer_head.h:378 [inline]
 sb_getblk include/linux/buffer_head.h:384 [inline]
 __ext4_get_inode_loc+0x56c/0xf40 fs/ext4/inode.c:4921
 ext4_get_inode_loc+0x81/0xf0 fs/ext4/inode.c:5049
 ext4_xattr_ibody_get+0x113/0x4b0 fs/ext4/xattr.c:659
 ext4_xattr_get+0x121/0x690 fs/ext4/xattr.c:720
 __vfs_getxattr+0x412/0x440 fs/xattr.c:446
 cap_inode_need_killpriv+0x45/0x60 security/commoncap.c:331
 security_inode_need_killpriv+0x85/0x240 security/security.c:2186
page last free pid 4699 tgid 4699 ts 77667813826 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __folio_put+0x4b3/0x590 mm/folio.c:106
 folio_put include/linux/mm.h:2160 [inline]
 zpdesc_put mm/zpdesc.h:137 [inline]
 __free_zspage_lockless+0x2e2/0x460 mm/zsmalloc.c:915
 zs_free+0xca0/0x1090 mm/zsmalloc.c:1570
 zswap_entry_free+0x318/0x510 mm/zswap.c:768
 zswap_load+0x3ca/0x4c0 mm/zswap.c:1641
 swap_read_folio+0x926/0x11c0 mm/page_io.c:480
 swap_cache_read_folio+0x8b/0x120 mm/swap_state.c:658
 swap_cluster_readahead+0x392/0x630 mm/swap_state.c:849
 swapin_readahead+0x1a3/0xc50 mm/swap_state.c:997
 do_swap_page+0x3fb/0x4c10 mm/memory.c:4971
 handle_pte_fault mm/memory.c:6561 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0x1398/0x3750 mm/memory.c:6876
 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595

Memory state around the buggy address:
 ffff888052432d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888052432e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888052432e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                        ^
 ffff888052432f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888052432f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================