CVE-2026-93114

CVE CVE-2026-93114EUVD EUVD-2026-82222Published 2026-09-17T16:11:22.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux a9e10e58730432e5de840eb3ddd55c75f29341b3 <4faa43d4ef0b98beb6c2b77a279f4aa5d7fa2d13; a9e10e58730432e5de840eb3ddd55c75f29341b3 <2b3a5dabe89e330413af403246b648c1890f368f; patch: 7.3-rc1; patch: 6.6.157; patch: 6.12.110; a9e10e58730432e5de840eb3ddd55c75f29341b3 <7fea5a310e3b2db24f7aafe64897e4e659ffbb7d; a9e10e58730432e5de840eb3ddd55c75f29341b3 <9b6479da662c2ec4e931ed9f7228df46aa8c3766; patch: 5.15.221; a9e10e58730432e5de840eb3ddd55c75f29341b3 <3855be0100efb98c26228c610db70a673611f3bd; patch: 6.1.188; 5.14; a9e10e58730432e5de840eb3ddd55c75f29341b3 <428a82d987fcd8844e8868c85582eae75b4b5c51; a9e10e58730432e5de840eb3ddd55c75f29341b3 <f276b62f2ce1cbff7fa50a8ee5afd8fef5a60897; patch: 6.18.52; patch: 7.2.6; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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