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VulnerabilityPublished

CVE-2026-98902: Linux kernel · md/raid5: let stripe batch bm_seq comparison wrap-safe

Source GCVE Database

0
Authoritative record:CVE-2026-98902

Not known to be exploited · fixed in ffdd3aee932fc293456678f6b0200ffe9bf12a6d : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in ffdd3aee932fc293456678f6b0200ffe9bf12a6d, cc8eb1715673de850f14376782151f68f73ae3ce, c5c89e1a872a84019f674f5107111e6e6b7cc30f +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < ffdd3aee932fc293456678f6b0200ffe9bf12a6d
Fixed in
  • ffdd3aee932fc293456678f6b0200ffe9bf12a6d
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < cc8eb1715673de850f14376782151f68f73ae3ce
Fixed in
  • cc8eb1715673de850f14376782151f68f73ae3ce
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < c5c89e1a872a84019f674f5107111e6e6b7cc30f
Fixed in
  • c5c89e1a872a84019f674f5107111e6e6b7cc30f
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < 647c7289a3960118e249c0a53da6f1ebba1e47a3
Fixed in
  • 647c7289a3960118e249c0a53da6f1ebba1e47a3
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < 628b14d0744bd5dfe176ea93559071cdcde14255
Fixed in
  • 628b14d0744bd5dfe176ea93559071cdcde14255
LinuxLinuxAffected
  • ≥ 2b6b24574256c05be145936f1493aec74c6904e5, < 2fdc51228d9a8cad2d727d5aef732cc66fc6d56e
Fixed in
  • 2fdc51228d9a8cad2d727d5aef732cc66fc6d56e

AI-suggested

A fix has been applied in the Linux kernel to address this issue by making the bm_seq comparison wrap-safe. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor advisory for current remediation guidance.

Description

A vulnerability in the Linux kernel's md/raid5 component related to the handling of 32-bit sequence numbers (bm_seq) has been resolved. The issue involved incorrect comparison logic when the 32-bit sequence number wraps around, causing newer sequence numbers to appear smaller than older ones. This was addressed by implementing a wrap-safe comparison method.

References

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