Bug 2467022 (CVE-2026-43077)

Summary: CVE-2026-43077 kernel: crypto: algif_aead - Fix minimum RX size check for decryption
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel, specifically within the `algif_aead` module. The vulnerability involves an incorrect check for the minimum receive buffer size during decryption, which did not properly account for the tag size. This could potentially lead to issues with data integrity or processing during cryptographic decryption operations.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-05-06 10:03:36 UTC
In the Linux kernel, the following vulnerability has been resolved:

crypto: algif_aead - Fix minimum RX size check for decryption

The check for the minimum receive buffer size did not take the
tag size into account during decryption.  Fix this by adding the
required extra length.