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Vulnerability · Published Oct 28, 2026 · Assigned by Linux

CVE-2026-99118drm/i915/dmc: Harden DMC firmware payload parsing

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 91.8% 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: drm/i915/dmc: Harden DMC firmware payload parsing Validate the conversion of the DMC firmware size from dwords to bytes using check_mul_overflow() before calculating the firmware payload size. Reject zero-length payloads and zero MMIO counts in the DMC firmware header so malformed firmware is caught early. Also set dmc_fw_size only after the payload allocation succeeds. (cherry picked from commit efde6601a1f1daedfe3dcc2816c934ddb44e3eef)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-99118
Debian:13linux6.12.115-2DEBIAN-CVE-2026-99118
Debian:14linux7.2.13-1DEBIAN-CVE-2026-99118
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux7.3.0-10.10UBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-aws7.3.0-1004.4UBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-azureno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-gcp7.3.0-1004.4UBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-oracle7.3.0-1004.4UBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-raspi7.3.0-1004.4UBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-realtime7.3.0-10.10.1UBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99118
Ubuntu:26.10linux-riscv7.3.0-10.10.1UBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-99118
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-99118
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-99118

Affected products (as reported)

VendorProductVersions
Linux Linux eb805623d8b161342ed9c9caf366f0a295041a6d – before 0e396088fa5c1f96ff43de29c2a2f8807078723deb805623d8b161342ed9c9caf366f0a295041a6d – before 53068cf3851dd4e00e8e668563e0353d9d79a98beb805623d8b161342ed9c9caf366f0a295041a6d – before e33921271d4438f4a24014f560e5ab297d7eda3feb805623d8b161342ed9c9caf366f0a295041a6d – before 4589ad76a6b1011538600ad398baf0b7d73a1252eb805623d8b161342ed9c9caf366f0a295041a6d – before eb7a0ba650d607976d1a0a5e7501d3f14b35d026eb805623d8b161342ed9c9caf366f0a295041a6d – before dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aaeb805623d8b161342ed9c9caf366f0a295041a6d – before 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6deb805623d8b161342ed9c9caf366f0a295041a6d – before 8bb1858db453cd4250e3b633f5d2d09206024ca6
Linux Linux 4.2

References