In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60 cve-icon cve-icon
https://git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3e cve-icon cve-icon
https://git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4 cve-icon cve-icon
https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479 cve-icon cve-icon
https://git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedcc cve-icon cve-icon
https://git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236 cve-icon cve-icon
https://git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7b cve-icon cve-icon
https://git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5b cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html cve-icon
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html cve-icon
https://lore.kernel.org/linux-cve-announce/2025100120-CVE-2025-39920-5dbe@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-39920 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-39920 cve-icon
History

Mon, 03 Nov 2025 18:30:00 +0000

Type Values Removed Values Added
References

Fri, 03 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Thu, 02 Oct 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 01 Oct 2025 08:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.
Title pcmcia: Add error handling for add_interval() in do_validate_mem()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-10-01T07:55:15.731Z

Updated: 2025-11-03T17:44:40.739Z

Reserved: 2025-04-16T07:20:57.147Z

Link: CVE-2025-39920

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-01T08:15:35.237

Modified: 2025-11-03T18:16:53.013

Link: CVE-2025-39920

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-01T00:00:00Z

Links: CVE-2025-39920 - Bugzilla