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Vulnerability · Published Sep 17, 2026 · Assigned by Linux

CVE-2026-93114platform/surface: acpi-notify: Check ACPI companion before use

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 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 93.3% 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: platform/surface: acpi-notify: Check ACPI companion before use Since every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), platform drivers that rely on the existence of a device's ACPI companion object should verify its presence. san_probe() dereferences the result of ACPI_COMPANION() when installing the GSBUS address space handler, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. The dereference was introduced when the probe function was switched from ACPI_HANDLE() to ACPI_COMPANION(). Check the ACPI companion against NULL and return -ENODEV when it is missing, like commit e4865a56d013 ("ACPI: driver: Check ACPI_COMPANION() against NULL during probe") does for the core ACPI platform drivers.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.190-1DEBIAN-CVE-2026-93114
Debian:13linux6.12.111-1DEBIAN-CVE-2026-93114
Debian:14linux7.2.6-1DEBIAN-CVE-2026-93114
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-93114
Ubuntu:22.04:LTSlinux5.15.0-202.212UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-93114
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-93114
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-93114
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-93114

Affected products (as reported)

VendorProductVersions
Linux Linux a9e10e58730432e5de840eb3ddd55c75f29341b3 – before 4faa43d4ef0b98beb6c2b77a279f4aa5d7fa2d13a9e10e58730432e5de840eb3ddd55c75f29341b3 – before 3855be0100efb98c26228c610db70a673611f3bda9e10e58730432e5de840eb3ddd55c75f29341b3 – before f276b62f2ce1cbff7fa50a8ee5afd8fef5a60897a9e10e58730432e5de840eb3ddd55c75f29341b3 – before 9b6479da662c2ec4e931ed9f7228df46aa8c3766a9e10e58730432e5de840eb3ddd55c75f29341b3 – before 7fea5a310e3b2db24f7aafe64897e4e659ffbb7da9e10e58730432e5de840eb3ddd55c75f29341b3 – before 428a82d987fcd8844e8868c85582eae75b4b5c51a9e10e58730432e5de840eb3ddd55c75f29341b3 – before 2b3a5dabe89e330413af403246b648c1890f368f
Linux Linux 5.14

References