Bug 2502604 (CVE-2026-64133)

Summary: CVE-2026-64133 kernel: ALSA: asihpi: Fix potential OOB array access at reading cache
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel, specifically within the Advanced Linux Sound Architecture (ALSA) asihpi component. This vulnerability occurs because a function designed to retrieve cached information does not properly check the boundaries of an array it is accessing. This oversight could allow a local attacker to access memory outside of its intended limits, potentially leading to system instability (denial of service) or, in some cases, unauthorized privilege escalation.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-07-19 17:08:29 UTC
In the Linux kernel, the following vulnerability has been resolved:

ALSA: asihpi: Fix potential OOB array access at reading cache

find_control() to retrieve a cached info accesses the array with the
given index blindly, which may lead to an OOB array access.
Add a sanity check for avoiding it.