CVE-2026-98129

Kernel crash via unchecked SAS port allocation

Published Sep 25, 2026 · Updated Sep 25, 2026

NULL pointer dereference in Linux 6.1 allows attackers to crash the kernel during SAS port creation after memory allocation fails. mpi3mr_sas_port_add() passes a NULL result from sas_port_alloc_num() to sas_port_add() without checking it and also leaks the allocated port when sas_port_add() fails. Reachability requires the mpi3mr SAS transport path and an allocation failure during port creation; published evidence establishes a kernel crash but no stronger security impact.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux 6.1 allows attackers to crash the kernel during SAS port creation after memory allocation fails. mpi3mr_sas_port_add() passes a NULL result from sas_port_alloc_num() to sas_port_add() without checking it and also leaks the allocated port when sas_port_add() fails. Reachability requires the mpi3mr SAS transport path and an allocation failure during port creation; published evidence establishes a kernel crash but no stronger security impact.

The record

CVE
CVE-2026-98129
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.1
  2. Affected versionversion=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <2f69ed909de9e3d46af9db7dd24b9b80dc31b5ec
  3. Affected versionversion=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <5c50137ba11b6e20e7074303dae35ff58d5a0b6f
  4. Affected versionversion=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <5cb58b052cf09dd8e88d92c1d649b3eea5c95d4d
  5. Affected versionversion=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <dba9e2181ca5e875f98b8b9b4535cdaab87dcb0d

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.1; version=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <2f69ed909de9e3d46af9db7dd24b9b80dc31b5ec; version=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <5c50137ba11b6e20e7074303dae35ff58d5a0b6f; version=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <5cb58b052cf09dd8e88d92c1d649b3eea5c95d4d; version=e22bae30667a7e74ed057e00fb6e8c79e0738de3 <dba9e2181ca5e875f98b8b9b4535cdaab87dcb0d

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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