VYPR
← All advisories
Medium severity4.7NVD Advisory· Published Sep 16, 2025· Updated May 12, 2026

CVE-2025-39825

CVE-2025-39825

Description

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix race with concurrent opens in rename(2)

Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding I/O to complete as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens on the target file.

Fix this by unhashing the dentry in advance to prevent any concurrent opens on the target.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

150

Patches

Vulnerability mechanics

References

7

News mentions

1