Bug 2555248 (CVE-2026-98819)

Summary: CVE-2026-98819 kernel: Bluetooth: btintel: validate DDC record lengths
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: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, 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's Intel Bluetooth driver. When processing Device Descriptor Configuration (DDC) records, the driver fails to properly validate record lengths, allowing integer wrapping and reading past buffer boundaries. An attacker capable of supplying crafted firmware data could trigger an out-of-bounds read, leading to a Denial of Service (DoS) via a system crash.
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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 2026-10-18 16:04:35 UTC
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btintel: validate DDC record lengths

Parse DDC record lengths in unsigned storage so 0xFF does not wrap.
Reject records smaller than the mandatory three-byte header, records
exceeding U8_MAX, and records exceeding remaining firmware bytes before
issuing Intel_Write_DDC.

This issue was reported by Claude Mythos.