CVE-2025-39825
Published: Sep 16, 2025
Modified: May 12, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 78c09634f7dc061a3bd09704cdbebb3762a45cdf - < c9e7de284da0be5b44dbe79d71573f9f7f9b144caffected 78c09634f7dc061a3bd09704cdbebb3762a45cdf - < 24b9ed739c8c5b464d983e12cf308982f3ae93c2affected 78c09634f7dc061a3bd09704cdbebb3762a45cdf - < c9991af5e09924f6f3b3e6996a5e09f9504b4358affected 78c09634f7dc061a3bd09704cdbebb3762a45cdf - < 289f945acb20b9b54fe4d13895e44aa58965ddb2affected 78c09634f7dc061a3bd09704cdbebb3762a45cdf - < d84291fc7453df7881a970716f8256273aca5747 |
Linux | Linux | affected 5.13unaffected 0 - < 5.13unaffected 6.1.150 - <= 6.1.*unaffected 6.6.104 - <= 6.6.*unaffected 6.12.45 - <= 6.12.*+2 more versions |
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now