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BUG: KMSAN: kernel-infoleak-after-free in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak-after-free in copy_to_user_iter lib/iov_iter.c:24 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_ubuf include/linux/iov_iter.h:30 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance2 include/linux/iov_iter.h:302 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance include/linux/iov_iter.h:330 [inline]
BUG: KMSAN: kernel-infoleak-after-free in _copy_to_iter+0xef3/0x33f0 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:302 [inline]
 iterate_and_advance include/linux/iov_iter.h:330 [inline]
 _copy_to_iter+0xef3/0x33f0 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:2799
 blkdev_read_iter+0x89f/0xb00 block/fops.c:859
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x8ed/0xf90 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+0x2f9c/0x3e30 arch/x86/include/generated/asm/syscalls_64.h:1
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 ntfs_write_bh+0x6ae/0xe90 fs/ntfs3/fsntfs.c:1430
 mi_write+0xb4/0x2f0 fs/ntfs3/record.c:402
 ni_write_inode+0xd95/0x1ca0 fs/ntfs3/frecord.c:3325
 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1042
 write_inode fs/fs-writeback.c:1564 [inline]
 __writeback_single_inode+0x892/0x1190 fs/fs-writeback.c:1784
 writeback_sb_inodes+0xac1/0x1cb0 fs/fs-writeback.c:2015
 wb_writeback+0x4ce/0xc00 fs/fs-writeback.c:2195
 wb_do_writeback fs/fs-writeback.c:2342 [inline]
 wb_workfn+0x397/0x1910 fs/fs-writeback.c:2382
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3346
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3427
 kthread+0xd5c/0xf00 kernel/kthread.c:463
 ret_from_fork+0x1f5/0x4c0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 al_update+0x3a9/0x570 fs/ntfs3/attrlist.c:404
 ni_write_inode+0x1adc/0x1ca0 fs/ntfs3/frecord.c:3293
 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1042
 write_inode fs/fs-writeback.c:1564 [inline]
 __writeback_single_inode+0x892/0x1190 fs/fs-writeback.c:1784
 writeback_sb_inodes+0xac1/0x1cb0 fs/fs-writeback.c:2015
 wb_writeback+0x4ce/0xc00 fs/fs-writeback.c:2195
 wb_do_writeback fs/fs-writeback.c:2342 [inline]
 wb_workfn+0x397/0x1910 fs/fs-writeback.c:2382
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3346
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3427
 kthread+0xd5c/0xf00 kernel/kthread.c:463
 ret_from_fork+0x1f5/0x4c0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was created at:
 slab_free_hook mm/slub.c:2465 [inline]
 slab_free mm/slub.c:6630 [inline]
 kfree+0x254/0x1460 mm/slub.c:6837
 mi_clear fs/ntfs3/ntfs_fs.h:1107 [inline]
 ni_clear+0x576/0x6d0 fs/ntfs3/frecord.c:135
 ntfs_evict_inode+0x41/0x50 fs/ntfs3/inode.c:1807
 evict+0x700/0xd00 fs/inode.c:810
 iput_final fs/inode.c:1914 [inline]
 iput+0xba3/0xfa0 fs/inode.c:1966
 ntfs_extend_init+0x823/0x960 fs/ntfs3/fsntfs.c:272
 ntfs_fill_super+0x725e/0x7a40 fs/ntfs3/super.c:1565
 get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1691
 get_tree_bdev+0x38/0x50 fs/super.c:1714
 ntfs_fs_get_tree+0x35/0x40 fs/ntfs3/super.c:1718
 vfs_get_tree+0xb3/0x5c0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x839/0x15f0 fs/namespace.c:3727
 path_mount+0x747/0x1fb0 fs/namespace.c:4037
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x6f7/0x7e0 fs/namespace.c:4215
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4215
 x64_sys_call+0x3604/0x3e30 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Bytes 202-207 of 1024 are uninitialized
Memory access of size 1024 starts at ffff8880340ab000
Data copied to user address 00007fcd1f581000

CPU: 0 UID: 0 PID: 8357 Comm: udevd Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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