syzbot

loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS' sector size (1024) and media sector size (512)
loop0: detected capacity change from 4096 to 0
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BUG: KASAN: slab-out-of-bounds in ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066
Read of size 3504 at addr ffff888142b18cc0 by task syz-executor363/4250

CPU: 0 PID: 4250 Comm: syz-executor363 Not tainted 6.1.117-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memcpy+0x25/0x60 mm/kasan/shadow.c:65
 ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066
 ntfs_sb_write_run+0x29c/0x810 fs/ntfs3/fsntfs.c:1117
 ntfs_set_ea+0x11e6/0x1660 fs/ntfs3/xattr.c:499
 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976
 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816
 notify_change+0xce3/0xfc0 fs/attr.c:499
 chmod_common+0x2a7/0x4b0 fs/open.c:606
 do_fchmodat fs/open.c:645 [inline]
 __do_sys_fchmodat fs/open.c:658 [inline]
 __se_sys_fchmodat fs/open.c:655 [inline]
 __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb3f74b2639
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd2f037d98 EFLAGS: 00000246 ORIG_RAX: 000000000000010c
RAX: ffffffffffffffda RBX: 00007ffd2f037da0 RCX: 00007fb3f74b2639
RDX: 0000000000000141 RSI: 0000000020000200 RDI: 00000000ffffff9c
RBP: 00007ffd2f037da8 R08: 00007fb3f747e430 R09: 00007fb3f747e430
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2f038008 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 4250:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc+0xb2/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:562 [inline]
 kzalloc include/linux/slab.h:693 [inline]
 ntfs_set_ea+0x6d7/0x1660 fs/ntfs3/xattr.c:401
 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976
 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816
 notify_change+0xce3/0xfc0 fs/attr.c:499
 chmod_common+0x2a7/0x4b0 fs/open.c:606
 do_fchmodat fs/open.c:645 [inline]
 __do_sys_fchmodat fs/open.c:658 [inline]
 __se_sys_fchmodat fs/open.c:655 [inline]
 __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888142b18cc0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff888142b18cc0, ffff888142b18ce0)

The buggy address belongs to the physical page:
page:ffffea00050ac600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x142b18
flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000000200 ffffea000072b900 dead000000000002 ffff888017c41500
raw: 0000000000000000 0000000080400040 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 7805511413, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517
 prep_new_page mm/page_alloc.c:2524 [inline]
 get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5589
 alloc_page_interleave+0x22/0x1c0 mm/mempolicy.c:2115
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa1/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:562 [inline]
 kzalloc include/linux/slab.h:693 [inline]
 kobject_get_path+0xb4/0x220 lib/kobject.c:152
 kobject_uevent_env+0x29b/0x8c0 lib/kobject_uevent.c:544
 tty_register_device_attr+0x582/0x960 drivers/tty/tty_io.c:3271
 tty_register_device drivers/tty/tty_io.c:3185 [inline]
 tty_register_driver+0x5f6/0xc50 drivers/tty/tty_io.c:3449
 legacy_pty_init+0x3c7/0x602 drivers/tty/pty.c:581
 pty_init+0xa/0x12 drivers/tty/pty.c:943
 do_one_initcall+0x265/0x8f0 init/main.c:1298
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888142b18b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888142b18c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff888142b18c80: fa fb fb fb fc fc fc fc 00 00 04 fc fc fc fc fc
                                                 ^
 ffff888142b18d00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888142b18d80: fb fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc
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