CVE-2023-53163: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: don't hold ni_lock when calling truncate_setsize() syzbot is reporting hung task at do_user_addr_fault() [1], for there is a silent deadlock between PG_locked bit and ni_lock lock. Since filemap_update_page() calls filemap_read_folio() after calling folio_trylock() which will set PG_locked bit, ntfs_truncate() must not call truncate_setsize() which will wait for PG_locked bit to be cleared when holding ni_lock lock.

Affected products

• Linux Linux Kernel: from 5.15, before 5.15.87 (fixed in 5.15.87); from 5.16, before 6.0.19 (fixed in 6.0.19); from 6.1, before 6.1.5 (fixed in 6.1.5); version 6.2 only

Published 2025-09-15. Last modified 2026-06-17.