CVE-2025-37956: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from d_alloc. This patch return the error when attempting to rename a file or directory with an empty new name string.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.15 — 6.6.91
linux	linux_kernel	6.7 — 6.12.29
linux	linux_kernel	6.13 — 6.14.7
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/53e3e5babc0963a92d856a5ec0ce92c59f54bc12 https://git.kernel.org/stable/c/6ee551672c8cf36108b0cfba92ec0c7c28ac3439 https://git.kernel.org/stable/c/c57301e332cc413fe0a7294a90725f4e21e9549d https://git.kernel.org/stable/c/d7f2c00acb1ef64304fd40ac507e9213ff1d9b5c

Frequently Asked Questions

What is CVE-2025-37956? +

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from d_alloc. This patch return the error when attempting to rename a file or directory with an empty new name string. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-37956? +

CVE-2025-37956 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-37956? +

CVE-2025-37956 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-37956? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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