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BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline]
BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:30 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_iter+0xf0e/0x33f0 lib/iov_iter.c:185
 instrument_copy_to_user include/linux/instrumented.h:114 [inline]
 copy_to_user_iter lib/iov_iter.c:24 [inline]
 iterate_ubuf include/linux/iov_iter.h:30 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
 iterate_and_advance include/linux/iov_iter.h:328 [inline]
 _copy_to_iter+0xf0e/0x33f0 lib/iov_iter.c:185
 copy_page_to_iter+0x482/0x910 lib/iov_iter.c:362
 copy_folio_to_iter include/linux/uio.h:204 [inline]
 filemap_read+0xcfd/0x2300 mm/filemap.c:2762
 blkdev_read_iter+0x89f/0xb00 block/fops.c:833
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x85a/0xf00 fs/read_write.c:572
 ksys_read fs/read_write.c:715 [inline]
 __do_sys_read fs/read_write.c:724 [inline]
 __se_sys_read fs/read_write.c:722 [inline]
 __x64_sys_read+0x1fb/0x4d0 fs/read_write.c:722
 x64_sys_call+0x39db/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:1
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 ntfs_sb_write+0x5ee/0xbd0 fs/ntfs3/fsntfs.c:1073
 ntfs_sb_write_run+0x2b2/0x900 fs/ntfs3/fsntfs.c:1124
 al_add_le+0x12cf/0x17e0 fs/ntfs3/attrlist.c:351
 ni_ins_new_attr+0x1d2/0x630 fs/ntfs3/frecord.c:419
 ni_ins_attr_ext+0xd0c/0x1480 fs/ntfs3/frecord.c:972
 ni_insert_attr+0x299/0xfb0 fs/ntfs3/frecord.c:1091
 ni_insert_nonresident+0x3bd/0x8d0 fs/ntfs3/frecord.c:1426
 attr_make_nonresident+0xcdc/0x14f0 fs/ntfs3/attrib.c:317
 attr_set_size_res fs/ntfs3/attrib.c:373 [inline]
 attr_set_size+0x4d8d/0x6740 fs/ntfs3/attrib.c:434
 ntfs_set_ea+0xf7f/0x2410 fs/ntfs3/xattr.c:462
 ntfs_save_wsl_perm+0x120/0x520 fs/ntfs3/xattr.c:961
 ntfs_create_inode+0x39f5/0x5560 fs/ntfs3/inode.c:1598
 ntfs_symlink+0x11a/0x1a0 fs/ntfs3/namei.c:197
 vfs_symlink+0x1f1/0x470 fs/namei.c:4739
 do_symlinkat+0x25f/0xbd0 fs/namei.c:4765
 __do_sys_symlink fs/namei.c:4786 [inline]
 __se_sys_symlink fs/namei.c:4784 [inline]
 __x64_sys_symlink+0xcf/0x140 fs/namei.c:4784
 x64_sys_call+0x3a03/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:89
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4154 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 ni_create_attr_list+0x1ca/0x1db0 fs/ntfs3/frecord.c:770
 ni_ins_attr_ext+0x676/0x1480 fs/ntfs3/frecord.c:924
 ni_insert_attr+0x299/0xfb0 fs/ntfs3/frecord.c:1091
 ni_insert_nonresident+0x3bd/0x8d0 fs/ntfs3/frecord.c:1426
 attr_make_nonresident+0xcdc/0x14f0 fs/ntfs3/attrib.c:317
 attr_set_size_res fs/ntfs3/attrib.c:373 [inline]
 attr_set_size+0x4d8d/0x6740 fs/ntfs3/attrib.c:434
 ntfs_set_ea+0xf7f/0x2410 fs/ntfs3/xattr.c:462
 ntfs_save_wsl_perm+0x120/0x520 fs/ntfs3/xattr.c:961
 ntfs_create_inode+0x39f5/0x5560 fs/ntfs3/inode.c:1598
 ntfs_symlink+0x11a/0x1a0 fs/ntfs3/namei.c:197
 vfs_symlink+0x1f1/0x470 fs/namei.c:4739
 do_symlinkat+0x25f/0xbd0 fs/namei.c:4765
 __do_sys_symlink fs/namei.c:4786 [inline]
 __se_sys_symlink fs/namei.c:4784 [inline]
 __x64_sys_symlink+0xcf/0x140 fs/namei.c:4784
 x64_sys_call+0x3a03/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:89
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Bytes 26-31 of 512 are uninitialized
Memory access of size 512 starts at ffff888132b6b000
Data copied to user address 00007fae5298d000

CPU: 0 UID: 0 PID: 5972 Comm: udevd Not tainted 6.16.0-rc4-syzkaller-00108-g17bbde2e1716 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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