VULNERABILITY INTELLIGENCE

CVE-2025-71292

CVSS score7.5 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2026-05-06
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: jfs: nlink overflow in jfs_rename If nlink is maximal for a directory (-1) and inside that directory you perform a rename for some child directory (not moving from the parent), then the nlink of the first directory is first incremented and later decremented. Normally this is fine, but when nlink = -1 this causes a wrap around to 0, and then drop_nlink issues a warning. After applying the patch syzbot no longer issues any warnings. I also ran some basic fs tests to look for any regressions.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references