CVE-2026-64173: tracing: Do not call map->ops->elt_free() if elt_alloc() fails
In the Linux kernel, the following vulnerability has been resolved:
tracing: Do not call map->ops->eltfree() if eltalloc() fails
In paths where tracingmapeltalloc() failed to allocate objects, the map->ops->eltalloc() call was never successful. In this case, map->ops->eltfree() should not be called.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-64173?
The severity of CVE-2026-64173 is rated as 12.
How do I fix CVE-2026-64173?
To fix CVE-2026-64173, ensure you update to the latest version of the Linux kernel where the vulnerability is resolved.
What systems are affected by CVE-2026-64173?
CVE-2026-64173 affects versions of the Linux kernel that use the tracing subsystem in their operation.
What is the main problem described in CVE-2026-64173?
The main issue in CVE-2026-64173 involves improper handling of memory allocation failures in the tracing subsystem.
Can CVE-2026-64173 lead to system crashes?
Yes, CVE-2026-64173 can potentially lead to system instability and crashes if the improper memory handling occurs.