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BUG: KASAN: slab-out-of-bounds in memcmp lib/string.c:765 [inline]
BUG: KASAN: slab-out-of-bounds in bcmp+0xbe/0x1e0 lib/string.c:797
Read of size 8 at addr ffff88807ec9fd27 by task syz-executor.0/14774

CPU: 0 PID: 14774 Comm: syz-executor.0 Not tainted 6.1.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:284
 print_report+0x107/0x1f0 mm/kasan/report.c:395
 kasan_report+0xcd/0x100 mm/kasan/report.c:495
 memcmp lib/string.c:765 [inline]
 bcmp+0xbe/0x1e0 lib/string.c:797
 _Z6memcmpPKvU17pass_object_size0S0_U17pass_object_size0m include/linux/fortify-string.h:549 [inline]
 ntfs_read_mft fs/ntfs3/inode.c:253 [inline]
 ntfs_iget5+0x1101/0x36f0 fs/ntfs3/inode.c:501
 ntfs_fill_super+0x3eab/0x42a0 fs/ntfs3/super.c:1262
 get_tree_bdev+0x400/0x620 fs/super.c:1324
 vfs_get_tree+0x88/0x270 fs/super.c:1531
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ffa1ae8d60a
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:00007ffa1bb02f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000001f739 RCX: 00007ffa1ae8d60a
RDX: 0000000020000100 RSI: 00000000200000c0 RDI: 00007ffa1bb02fe0
RBP: 00007ffa1bb03020 R08: 00007ffa1bb03020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000100
R13: 00000000200000c0 R14: 00007ffa1bb02fe0 R15: 0000000020000080
 </TASK>

Allocated by task 14774:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x3d/0x60 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:371 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:955 [inline]
 __kmalloc+0xaf/0x1a0 mm/slab_common.c:968
 kmalloc include/linux/slab.h:558 [inline]
 mi_init+0x72/0xe0 fs/ntfs3/record.c:105
 ntfs_read_mft fs/ntfs3/inode.c:53 [inline]
 ntfs_iget5+0x309/0x36f0 fs/ntfs3/inode.c:501
 ntfs_fill_super+0x3eab/0x42a0 fs/ntfs3/super.c:1262
 get_tree_bdev+0x400/0x620 fs/super.c:1324
 vfs_get_tree+0x88/0x270 fs/super.c:1531
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff88807ec9f800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 295 bytes to the right of
 1024-byte region [ffff88807ec9f800, ffff88807ec9fc00)

The buggy address belongs to the physical page:
page:ffffea0001fb2600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7ec98
head:ffffea0001fb2600 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888012841dc0
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3648, tgid 3622 (syz-fuzzer), ts 129335492798, free_ts 128818456086
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4291
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5558
 alloc_slab_page+0x70/0xf0 mm/slub.c:1794
 allocate_slab+0x5e/0x4b0 mm/slub.c:1939
 new_slab mm/slub.c:1992 [inline]
 ___slab_alloc+0x782/0xe20 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x252/0x310 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:954 [inline]
 __kmalloc_node_track_caller+0x9c/0x190 mm/slab_common.c:975
 kmalloc_reserve net/core/skbuff.c:437 [inline]
 __alloc_skb+0x112/0x2b0 net/core/skbuff.c:509
 alloc_skb include/linux/skbuff.h:1267 [inline]
 __tcp_send_ack+0x98/0x5f0 net/ipv4/tcp_output.c:3960
 tcp_cleanup_rbuf net/ipv4/tcp.c:1628 [inline]
 tcp_recvmsg_locked+0x1cf3/0x25c0 net/ipv4/tcp.c:2649
 tcp_recvmsg+0x337/0x870 net/ipv4/tcp.c:2679
 inet_recvmsg+0x13a/0x250 net/ipv4/af_inet.c:861
 sock_recvmsg_nosec net/socket.c:995 [inline]
 sock_recvmsg net/socket.c:1013 [inline]
 sock_read_iter+0x3fa/0x530 net/socket.c:1086
 call_read_iter include/linux/fs.h:2193 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x7ac/0xbf0 fs/read_write.c:470
 ksys_read+0x177/0x2a0 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 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:1459 [inline]
 free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3483
 free_slab mm/slub.c:2031 [inline]
 discard_slab mm/slub.c:2037 [inline]
 __unfreeze_partials+0x1ab/0x200 mm/slub.c:2586
 put_cpu_partial+0x106/0x170 mm/slub.c:2662
 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x1cc/0x300 mm/slub.c:3422
 mt_alloc_one lib/maple_tree.c:152 [inline]
 mas_alloc_nodes+0x1fd/0x650 lib/maple_tree.c:1226
 mas_node_count_gfp lib/maple_tree.c:1310 [inline]
 mas_preallocate+0x133/0x340 lib/maple_tree.c:5717
 do_mas_align_munmap+0x211/0x14e0 mm/mmap.c:2314
 do_mas_munmap+0x245/0x2b0 mm/mmap.c:2502
 mmap_region+0x7b0/0x1e20 mm/mmap.c:2550
 do_mmap+0x8d9/0xf30 mm/mmap.c:1412
 vm_mmap_pgoff+0x19e/0x2b0 mm/util.c:520
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80

Memory state around the buggy address:
 ffff88807ec9fc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807ec9fc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807ec9fd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff88807ec9fd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807ec9fe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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