# CVE-2023-53163: linux: In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: don't hold ni_lock when calling trunca...

CVE-2023-53163 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53163, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-53163
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 15, 2025

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.7-1 | [DEBIAN-CVE-2023-53163](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53163.md) | Sep 15, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.7-1 | [DEBIAN-CVE-2023-53163](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53163.md) | Sep 15, 2025 |
| Linux | linux Debian 14 | 6.1.7-1 | [DEBIAN-CVE-2023-53163](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53163.md) | Sep 15, 2025 |

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