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Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98819Bluetooth: btintel: validate DDC record lengths

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98819
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98819
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98819
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98819
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98819
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98819
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98819
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-98819

Affected products (as reported)

VendorProductVersions
Linux Linux 145f2368c5fd7962e37315ccc092670743019d08 – before 780665bed305718a9fbb10e4aa4d5570d772c9f6145f2368c5fd7962e37315ccc092670743019d08 – before 93f00db7441eec84a11029662f04b152386107a9145f2368c5fd7962e37315ccc092670743019d08 – before e65c8f4ca39959889fcaf9779c3adf1a421aeb8d145f2368c5fd7962e37315ccc092670743019d08 – before 7df748aa9f9ecab514e5989ed89c9ba35b6e5574145f2368c5fd7962e37315ccc092670743019d08 – before 069031f569f1681f17e863f48c221a6091b47850145f2368c5fd7962e37315ccc092670743019d08 – before b0fce76873a5e6a6820354409b26693ac5f8b251145f2368c5fd7962e37315ccc092670743019d08 – before f3617369fbb30a4d2e54841ab8e92ca4fa211e56145f2368c5fd7962e37315ccc092670743019d08 – before c9c15d4d8956df8c564f7c210e4dc5b9b820d97a
Linux Linux 4.4

References