CVE-2026-98902

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

Published Oct 23, 2026 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

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.

Affected Products

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 Versions

Linux

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

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

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

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	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Ubuntu USN	USN-8961-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9029-1	Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

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.

Exploit prediction score: < 1% (0.179% probability within 30 days)

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

Oct 27, 2026 4:30 AM Added references. Scoring metrics updated View changes

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`

Oct 23, 2026 6:45 PM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-190

Oct 23, 2026 3:30 PM First appearance in the feed. Affected vendors updated View changes

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

Oct 23, 2026 12:00 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

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