CVE-2026-98902 - Vulnerability Details

- md/raid5: let stripe batch bm_seq comparison wrap-safe

Description

In the Linux kernel, the following vulnerability has been resolved:

md/raid5: let stripe batch bm_seq comparison wrap-safe

Once the 32-bit seq wraps, a newer bm_seq can look smaller
than old, so .. covert to wrap-safe calculate way.

Published: 2026-10-23

Score: 4.7 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< 647c7289a3960118e249c0a53da6f1ebba1e47a3
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< ffdd3aee932fc293456678f6b0200ffe9bf12a6d
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< 628b14d0744bd5dfe176ea93559071cdcde14255
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< 2fdc51228d9a8cad2d727d5aef732cc66fc6d56e
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< c5c89e1a872a84019f674f5107111e6e6b7cc30f
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< cc8eb1715673de850f14376782151f68f73ae3ce
`2b6b24574256c05be145936f1493aec74c6904e5`	affected	< 00e93faf4cea9e8802ac5dfee0952d84fc95c40f

Linux

affected

Version	Status	Constraints
`4.1`	affected	—
`0`	unaffected	< 4.1
`5.10.271`	unaffected	≤ 5.10.*
`5.15.222`	unaffected	≤ 5.15.*
`6.1.189`	unaffected	≤ 6.1.*
`6.6.158`	unaffected	≤ 6.6.*
`6.12.111`	unaffected	≤ 6.12.*
`6.18.53`	unaffected	≤ 6.18.*
`7.2`	unaffected	≤ *

No data.

Vendor Product Confidence Versions

Linux

100%

Version	Status	Scheme	Platform
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,647c7289a3960118e249c0a53da6f1ebba1e47a3)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ffdd3aee932fc293456678f6b0200ffe9bf12a6d)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,628b14d0744bd5dfe176ea93559071cdcde14255)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2fdc51228d9a8cad2d727d5aef732cc66fc6d56e)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c5c89e1a872a84019f674f5107111e6e6b7cc30f)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,cc8eb1715673de850f14376782151f68f73ae3ce)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,00e93faf4cea9e8802ac5dfee0952d84fc95c40f)`	affected	code_commit	—
`[0,5.10.271)`	affected	semver	—
`[0,5.15.222)`	affected	semver	—
`[0,6.1.189)`	affected	semver	—
`[0,6.6.158)`	affected	semver	—
`[0,6.12.111)`	affected	semver	—
`[0,6.18.53)`	affected	semver	—

Linux

100%

Version	Status	Scheme	Platform
`[5.10.271,5.11.0)`	unaffected	semver	—
`[5.15.222,5.16.0)`	unaffected	semver	—
`[6.1.189,6.2.0)`	unaffected	semver	—
`[6.6.158,6.7.0)`	unaffected	semver	—
`[6.12.111,6.13.0)`	unaffected	semver	—
`[6.18.53,6.19.0)`	unaffected	semver	—
`[7.2,*]`	unaffected	generic	—

Linux

Linux Kernel

100%

Version	Status	Scheme	Platform
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,647c7289a3960118e249c0a53da6f1ebba1e47a3)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ffdd3aee932fc293456678f6b0200ffe9bf12a6d)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,628b14d0744bd5dfe176ea93559071cdcde14255)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2fdc51228d9a8cad2d727d5aef732cc66fc6d56e)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c5c89e1a872a84019f674f5107111e6e6b7cc30f)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,cc8eb1715673de850f14376782151f68f73ae3ce)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,00e93faf4cea9e8802ac5dfee0952d84fc95c40f)`	affected	code_commit	—
`[0,5.10.271)`	affected	semver	—
`[0,5.15.222)`	affected	semver	—
`[0,6.1.189)`	affected	semver	—
`[0,6.6.158)`	affected	semver	—
`[0,6.12.111)`	affected	semver	—
`[0,6.18.53)`	affected	semver	—

Linux

Linux Kernel

100%

Version	Status	Scheme	Platform
`[5.10.271,5.11.0)`	unaffected	semver	—
`[5.15.222,5.16.0)`	unaffected	semver	—
`[6.1.189,6.2.0)`	unaffected	semver	—
`[6.6.158,6.7.0)`	unaffected	semver	—
`[6.12.111,6.13.0)`	unaffected	semver	—
`[6.18.53,6.19.0)`	unaffected	semver	—
`[7.2,*]`	unaffected	generic	—

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00179.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98902.mbox
https://git.kernel.org/stable/c/00e93faf4cea9e8802ac5dfee0952d84fc95c40f
https://git.kernel.org/stable/c/2fdc51228d9a8cad2d727d5aef732cc66fc6d56e
https://git.kernel.org/stable/c/628b14d0744bd5dfe176ea93559071cdcde14255
https://git.kernel.org/stable/c/647c7289a3960118e249c0a53da6f1ebba1e47a3
https://git.kernel.org/stable/c/c5c89e1a872a84019f674f5107111e6e6b7cc30f
https://git.kernel.org/stable/c/cc8eb1715673de850f14376782151f68f73ae3ce
https://git.kernel.org/stable/c/ffdd3aee932fc293456678f6b0200ffe9bf12a6d
https://nvd.nist.gov/vuln/detail/CVE-2026-98902
https://www.cve.org/CVERecord?id=CVE-2026-98902

History

Tue, 27 Oct 2026 04:30:00 +0000

Type	Values Removed	Values Added
References		https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98902.mbox https://nvd.nist.gov/vuln/detail/CVE-2026-98902 https://www.cve.org/CVERecord?id=CVE-2026-98902
Metrics	threat_severity `None`	cvssV3_1 `{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N'}` threat_severity `Moderate`

Fri, 23 Oct 2026 18:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-190

Fri, 23 Oct 2026 15:30:00 +0000

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

Fri, 23 Oct 2026 12:00:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: md/raid5: let stripe batch bm_seq comparison wrap-safe Once the 32-bit seq wraps, a newer bm_seq can look smaller than old, so .. covert to wrap-safe calculate way.
Title		md/raid5: let stripe batch bm_seq comparison wrap-safe
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/00e93faf4cea9e8802ac5dfee0952d84fc95c40f https://git.kernel.org/stable/c/2fdc51228d9a8cad2d727d5aef732cc66fc6d56e https://git.kernel.org/stable/c/628b14d0744bd5dfe176ea93559071cdcde14255 https://git.kernel.org/stable/c/647c7289a3960118e249c0a53da6f1ebba1e47a3 https://git.kernel.org/stable/c/c5c89e1a872a84019f674f5107111e6e6b7cc30f https://git.kernel.org/stable/c/cc8eb1715673de850f14376782151f68f73ae3ce https://git.kernel.org/stable/c/ffdd3aee932fc293456678f6b0200ffe9bf12a6d

Subscriptions

Linux Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-10-23T11:54:12.635Z

Updated: 2026-10-26T06:56:30.416Z

Reserved: 2026-09-25T10:25:14.379Z

Link: CVE-2026-98902

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-23T12:18:24.253

Modified: 2026-10-26T07:17:15.553

Link: CVE-2026-98902

Redhat

Severity : Moderate

Publid Date: 2026-10-23T00:00:00Z

Links: CVE-2026-98902 - Bugzilla

OpenCVE Enrichment

Updated: 2026-10-27T09:30:19Z

Weaknesses

CWE-190

Tracking

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

Subscriptions

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