SB2026102417 - Integer overflow in Linux kernel md driver

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Main Vulnerability Database SB2026102417

SB2026102417 - Integer overflow in Linux kernel md driver

Published: October 24, 2026

Security Bulletin ID SB2026102417
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Integer overflow (CVE-ID: CVE-2026-98902)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to interfere with RAID5 stripe batching, potentially compromising storage consistency.

The vulnerability exists due to integer wraparound and an incorrect sequence-number comparison in the Linux kernel RAID5 stripe batching logic when a 32-bit sequence counter wraps. A local user can potentially exercise stripe batching across this wraparound condition to cause newer bm_seq values to be treated as older values, potentially compromising storage consistency.


Remediation

Install update from vendor's website.

References