Linux Kernel up to 6.5.4 md raid1_remove_disk out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.5.4 and classified as critical. This vulnerability affects the function raid1_remove_disk of the component md. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2023-53722. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.5.4. It has been rated as problematic. Affected by this issue is the function raid1_remove_disk of the component md. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: md: raid1: fix potential OOB in raid1_remove_disk() If rddev->raid_disk is greater than mddev->raid_disks, there will be an out-of-bounds in raid1_remove_disk(). We have already found similar reports as follows: 1) commit d17f744e883b ("md-raid10: fix KASAN warning") 2) commit 1ebc2cec0b7d ("dm raid: fix KASAN warning in raid5_remove_disk") Fix this bug by checking whether the "number" variable is valid.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2023-53722 since 10/22/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 276794 (SUSE SLES15 Security Update : kernel (SUSE-SU-2025:4188-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.326, 4.19.295, 5.4.257, 5.10.197, 5.15.133, 6.1.55 or 6.5.5 eliminates this vulnerability. Applying the patch beedf40f73939f248c81802eda08a2a8148ea13e/91fbd4e75cb573f44d2619a9dc2f9ba927040760/25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24/7993cfc041481a3a9cd4a3858088fc846b8ccaf7/4f96c0665f9f4cf70130c9757750dc43dc679c82/4f7d853b4590fc20e90dd50e346c02811a8c5b08/4bdb92eaf645e312975357adc3c4e9523b6e67f1/8b0472b50bcf0f19a5119b00a53b63579c8e1e4d is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (276794) and CERT Bund (WID-SEC-2025-2394). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • Dell NetWorker

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 276794
Nessus Name: SUSE SLES15 Security Update : kernel (SUSE-SU-2025:4188-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.14.326/4.19.295/5.4.257/5.10.197/5.15.133/6.1.55/6.5.5
Patch: beedf40f73939f248c81802eda08a2a8148ea13e/91fbd4e75cb573f44d2619a9dc2f9ba927040760/25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24/7993cfc041481a3a9cd4a3858088fc846b8ccaf7/4f96c0665f9f4cf70130c9757750dc43dc679c82/4f7d853b4590fc20e90dd50e346c02811a8c5b08/4bdb92eaf645e312975357adc3c4e9523b6e67f1/8b0472b50bcf0f19a5119b00a53b63579c8e1e4d

Timelineinfo

10/22/2025 Advisory disclosed
10/22/2025 +0 days CVE reserved
10/22/2025 +0 days VulDB entry created
02/28/2026 +129 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53722 (🔒)
GCVE (CVE): GCVE-0-2023-53722
GCVE (VulDB): GCVE-100-329354
CERT Bund: WID-SEC-2025-2394 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/22/2025 17:50
Updated: 02/28/2026 13:15
Changes: 10/22/2025 17:50 (59), 11/28/2025 18:39 (2), 01/02/2026 07:53 (7), 02/28/2026 13:15 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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