loop0: detected capacity change from 0 to 128
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
hpfs: filesystem error: invalid number of hotfixes: 2066844986, used: 2066844985; already mounted read-only
hpfs: filesystem error: improperly stopped
hpfs: filesystem error: warning: spare dnodes used, try chkdsk
hpfs: You really don't want any checks? You are crazy...
hpfs: hpfs_map_sector(): read error
hpfs: code page support is disabled
==================================================================
BUG: KASAN: use-after-free in strcmp+0x6b/0xc0 lib/string.c:265
Read of size 1 at addr ffff88800e9da8a6 by task syz.0.0/5318

CPU: 0 UID: 0 PID: 5318 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
 strcmp+0x6b/0xc0 lib/string.c:265
 hpfs_get_ea+0x137/0xeb0 fs/hpfs/ea.c:139
 hpfs_read_inode+0x1a9/0x1060 fs/hpfs/inode.c:63
 hpfs_fill_super+0x1275/0x1fa0 fs/hpfs/super.c:652
 get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1887
 vfs_get_tree+0x92/0x2a0 fs/super.c:1947
 fc_mount fs/namespace.c:1198 [inline]
 do_new_mount_fc fs/namespace.c:3772 [inline]
 do_new_mount+0x319/0xdc0 fs/namespace.c:3848
 do_mount fs/namespace.c:4181 [inline]
 __do_sys_mount fs/namespace.c:4397 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4374
 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: 0033:0x7f1f9059f34a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f1f91416e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1f91416ea0 RCX: 00007f1f9059f34a
RDX: 000020000000a000 RSI: 0000200000009ec0 RDI: 00007f1f91416e60
RBP: 000020000000a000 R08: 00007f1f91416ea0 R09: 0000000003200041
R10: 0000000003200041 R11: 0000000000000246 R12: 0000200000009ec0
R13: 00007f1f91416e60 R14: 0000000000009e15 R15: 00002000000004c0
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x1d pfn:0xe9da
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001d 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_MOVABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 1, tgid 1 (init), ts 28316580459
 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:2495
 alloc_frozen_pages_noprof mm/mempolicy.c:2566 [inline]
 alloc_pages_noprof+0xb1/0x2b0 mm/mempolicy.c:2586
 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2596
 filemap_alloc_folio_noprof+0x111/0x460 mm/filemap.c:1019
 ractl_alloc_folio mm/readahead.c:200 [inline]
 page_cache_ra_unbounded+0x390/0x9d0 mm/readahead.c:288
 do_page_cache_ra mm/readahead.c:348 [inline]
 page_cache_ra_order+0xb47/0xee0 mm/readahead.c:558
 filemap_readahead mm/filemap.c:2682 [inline]
 filemap_get_pages+0x86d/0x1ec0 mm/filemap.c:2728
 filemap_read+0x426/0x11e0 mm/filemap.c:2824
 ext4_file_read_iter+0x553/0xad0 fs/ext4/file.c:-1
 __kernel_read+0x4ca/0x960 fs/read_write.c:532
 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:222 [inline]
 ima_calc_file_hash+0x451/0x890 security/integrity/ima/ima_crypto.c:280
 ima_collect_measurement+0x51b/0xa00 security/integrity/ima/ima_api.c:300
page last free pid 76 tgid 76 ts 92318976728 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 free_unref_folios+0xdc2/0x14e0 mm/page_alloc.c:3022
 shrink_folio_list+0x2c12/0x5350 mm/vmscan.c:1506
 evict_folios+0x3821/0x49e0 mm/vmscan.c:4841
 try_to_shrink_lruvec+0xe3b/0x1340 mm/vmscan.c:5004
 shrink_one+0x233/0x730 mm/vmscan.c:5045
 shrink_many mm/vmscan.c:5108 [inline]
 lru_gen_shrink_node mm/vmscan.c:5186 [inline]
 shrink_node+0x3303/0x3b60 mm/vmscan.c:6175
 kswapd_shrink_node mm/vmscan.c:7029 [inline]
 balance_pgdat mm/vmscan.c:7207 [inline]
 kswapd+0x185e/0x32c0 mm/vmscan.c:7483
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88800e9da780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88800e9da800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88800e9da880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                               ^
 ffff88800e9da900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88800e9da980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================