CVE-2023-53163

medium

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.

References

https://git.kernel.org/stable/c/8414983c2e649364d8af29080a0869266b31abb6

https://git.kernel.org/stable/c/73fee7e1e5ea11b51c51c46e0577a197ca3602cf

https://git.kernel.org/stable/c/6bb6b1c6b0c31e36736b87a39dd1cbbd9d5ec22f

https://git.kernel.org/stable/c/0226635c304cfd5c9db9b78c259cb713819b057e

Details

Source: Mitre, NVD

Published: 2025-09-15

Updated: 2025-09-15

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00018