Bug 2555248 (CVE-2026-98819) - CVE-2026-98819 kernel: Bluetooth: btintel: validate DDC record lengths
Summary: CVE-2026-98819 kernel: Bluetooth: btintel: validate DDC record lengths
Keywords:
Status: NEW
Alias: CVE-2026-98819
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-18 16:04 UTC by OSIDB Bzimport
Modified: 2026-10-23 19:21 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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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.
Comment 1 Mauro Matteo Cascella 2026-10-23 19:11:45 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98819.mbox
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