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CVE-2025-37956

ksmbd: prevent rename with empty string

MEDIUM
5.5
CVSS Score
Published: May 20, 2025 at 04:01 PM UTC
Updated: October 30, 2026 at 01:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.15 ≤ v < 6.6.916.13 ≤ v < 6.14.76.7 ≤ v < 6.12.296.156.15 rc16.15 rc26.15 rc36.15 rc46.15 rc5626e6641f6b467447c81dd7678a69c66f7746cf
Vendor states this is fixed in 53e3e5babc0963a92d856a5ec0ce92c59f54bc12 (fixed)
Vendor states this is fixed in 6ee551672c8cf36108b0cfba92ec0c7c28ac3439 (fixed)
Vendor states this is fixed in c57301e332cc413fe0a7294a90725f4e21e9549d (fixed)
Vendor states this is fixed in d7f2c00acb1ef64304fd40ac507e9213ff1d9b5c (fixed)
Vendor states this is fixed in 5.15 (unaffected)
Vendor states this is fixed in 6.1.191 (unaffected)
Vendor states this is fixed in 6.12.29 (unaffected)
Vendor states this is fixed in 6.14.7 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.6.91 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/53e3e5babc0963a92d856a5ec0ce92c59f54bc12
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6ee551672c8cf36108b0cfba92ec0c7c28ac3439
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c57301e332cc413fe0a7294a90725f4e21e9549d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d7f2c00acb1ef64304fd40ac507e9213ff1d9b5c
Source: cverecord
https://git.kernel.org/stable/c/35e2964e93d95185d2db0c0ffd9959d0197b3956

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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