In the Linux kernel, the following vulnerability has been resolved: tracing: Do not call map->ops->elt_free() if elt_alloc() fails In paths where… (CVE-2026-64173)
A vulnerability in the Linux kernel tracing subsystem was resolved by ensuring that the function map->ops->elt_free() is not called if the allocation function map->ops->elt_alloc() fails. This fixes an issue where, in failure paths of tracing_map_elt_alloc(), an improper call to elt_free() could occur despite elt_alloc() never succeeding.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel tracing code involved incorrect handling of allocation failures. Specifically, when tracing_map_elt_alloc() failed to allocate an object, the corresponding elt_free() function was still called, which should not happen since elt_alloc() never succeeded. This fix prevents calling elt_free() in such failure cases, addressing a potential stability or memory management issue in the kernel tracing subsystem.
Potential Impact
The impact relates to improper memory management in the kernel tracing subsystem that could lead to undefined behavior or kernel instability. No specific exploitation details or direct security consequences are provided. There is no indication of known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since this is a Linux kernel vulnerability, monitor official Linux kernel security advisories for patches addressing CVE-2026-64173 and apply them when available.
In the Linux kernel, the following vulnerability has been resolved: tracing: Do not call map->ops->elt_free() if elt_alloc() fails In paths where… (CVE-2026-64173)
Description
A vulnerability in the Linux kernel tracing subsystem was resolved by ensuring that the function map->ops->elt_free() is not called if the allocation function map->ops->elt_alloc() fails. This fixes an issue where, in failure paths of tracing_map_elt_alloc(), an improper call to elt_free() could occur despite elt_alloc() never succeeding.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel tracing code involved incorrect handling of allocation failures. Specifically, when tracing_map_elt_alloc() failed to allocate an object, the corresponding elt_free() function was still called, which should not happen since elt_alloc() never succeeded. This fix prevents calling elt_free() in such failure cases, addressing a potential stability or memory management issue in the kernel tracing subsystem.
Potential Impact
The impact relates to improper memory management in the kernel tracing subsystem that could lead to undefined behavior or kernel instability. No specific exploitation details or direct security consequences are provided. There is no indication of known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since this is a Linux kernel vulnerability, monitor official Linux kernel security advisories for patches addressing CVE-2026-64173 and apply them when available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-2pv6-rxgj-2695
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64173"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a82a4a8d598912a897
Added to database: 07/19/2026, 19:38:16 UTC
Last enriched: 07/19/2026, 19:43:01 UTC
Last updated: 07/20/2026, 19:40:21 UTC
Views: 16
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