In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sst_inst[] To be consistent with other… (CVE-2026-89439)
A vulnerability in the Linux kernel related to the platform/x86 ISST component has been resolved by adding a NULL check for the sst_inst[] array. This change ensures consistency with other code areas by checking for failed socket loading via isst_common.sst_inst[].
AI Analysis
Technical Summary
The Linux kernel contained a vulnerability in the platform/x86 ISST subsystem where a NULL check was missing for the sst_inst[] array. This could lead to issues when socket loading failed. The fix involved adding a NULL check to prevent potential faults or crashes by verifying the pointer before use, aligning with existing checks in the codebase.
Potential Impact
The vulnerability could cause instability or faults in the kernel when handling ISST socket loading failures due to missing NULL pointer checks. No specific exploitation details or impacts such as privilege escalation or information disclosure are provided.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add the necessary NULL check. Users should update to the fixed kernel version once available. No additional mitigation steps are indicated.
In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sst_inst[] To be consistent with other… (CVE-2026-89439)
Description
A vulnerability in the Linux kernel related to the platform/x86 ISST component has been resolved by adding a NULL check for the sst_inst[] array. This change ensures consistency with other code areas by checking for failed socket loading via isst_common.sst_inst[].
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel contained a vulnerability in the platform/x86 ISST subsystem where a NULL check was missing for the sst_inst[] array. This could lead to issues when socket loading failed. The fix involved adding a NULL check to prevent potential faults or crashes by verifying the pointer before use, aligning with existing checks in the codebase.
Potential Impact
The vulnerability could cause instability or faults in the kernel when handling ISST socket loading failures due to missing NULL pointer checks. No specific exploitation details or impacts such as privilege escalation or information disclosure are provided.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add the necessary NULL check. Users should update to the fixed kernel version once available. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9cq2-4366-jjx6
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-89439"]
Threat ID: 6aa4a02655bf5e2cf5a869c9
Added to database: 09/12/2026, 00:43:18 UTC
Last enriched: 09/12/2026, 01:18:40 UTC
Last updated: 09/12/2026, 01:34:48 UTC
Views: 3
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