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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00036.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24 cve-icon cve-icon
https://git.kernel.org/stable/c/4bdb92eaf645e312975357adc3c4e9523b6e67f1 cve-icon cve-icon
https://git.kernel.org/stable/c/4f7d853b4590fc20e90dd50e346c02811a8c5b08 cve-icon cve-icon
https://git.kernel.org/stable/c/4f96c0665f9f4cf70130c9757750dc43dc679c82 cve-icon cve-icon
https://git.kernel.org/stable/c/7993cfc041481a3a9cd4a3858088fc846b8ccaf7 cve-icon cve-icon
https://git.kernel.org/stable/c/8b0472b50bcf0f19a5119b00a53b63579c8e1e4d cve-icon cve-icon
https://git.kernel.org/stable/c/91fbd4e75cb573f44d2619a9dc2f9ba927040760 cve-icon cve-icon
https://git.kernel.org/stable/c/beedf40f73939f248c81802eda08a2a8148ea13e cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102215-CVE-2023-53722-f3ab@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53722 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53722 cve-icon
History

Mon, 05 Jan 2026 10:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Thu, 23 Oct 2025 10:30:00 +0000

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

Thu, 23 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Wed, 22 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title md: raid1: fix potential OOB in raid1_remove_disk()
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T10:32:34.157Z

Reserved: 2025-10-22T13:21:37.348Z

Link: CVE-2023-53722

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-22T14:15:46.920

Modified: 2025-10-22T21:12:48.953

Link: CVE-2023-53722

cve-icon Redhat

Severity : Important

Publid Date: 2025-10-22T00:00:00Z

Links: CVE-2023-53722 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T10:04:28Z

Weaknesses

No weakness.