{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93114","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T16:02:15.086Z","datePublished":"2026-09-17T16:11:22.463Z","dateUpdated":"2026-09-17T16:11:22.463Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:22.463Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/surface: acpi-notify: Check ACPI companion before use\n\nSince every platform driver can be forced to match a device that doesn't\nmatch its list of device IDs because of device_match_driver_override(),\nplatform drivers that rely on the existence of a device's ACPI companion\nobject should verify its presence.\n\nsan_probe() dereferences the result of ACPI_COMPANION() when installing\nthe GSBUS address space handler, so force-binding the driver to a device\nwithout an ACPI companion leads to a NULL pointer dereference.  The\ndereference was introduced when the probe function was switched from\nACPI_HANDLE() to ACPI_COMPANION().\n\nCheck the ACPI companion against NULL and return -ENODEV when it is\nmissing, like commit e4865a56d013 (\"ACPI: driver: Check ACPI_COMPANION()\nagainst NULL during probe\") does for the core ACPI platform drivers."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/surface/surface_acpi_notify.c"],"versions":[{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"4faa43d4ef0b98beb6c2b77a279f4aa5d7fa2d13","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"3855be0100efb98c26228c610db70a673611f3bd","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"f276b62f2ce1cbff7fa50a8ee5afd8fef5a60897","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"9b6479da662c2ec4e931ed9f7228df46aa8c3766","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"7fea5a310e3b2db24f7aafe64897e4e659ffbb7d","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"428a82d987fcd8844e8868c85582eae75b4b5c51","status":"affected","versionType":"git"},{"version":"a9e10e58730432e5de840eb3ddd55c75f29341b3","lessThan":"2b3a5dabe89e330413af403246b648c1890f368f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/surface/surface_acpi_notify.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4faa43d4ef0b98beb6c2b77a279f4aa5d7fa2d13"},{"url":"https://git.kernel.org/stable/c/3855be0100efb98c26228c610db70a673611f3bd"},{"url":"https://git.kernel.org/stable/c/f276b62f2ce1cbff7fa50a8ee5afd8fef5a60897"},{"url":"https://git.kernel.org/stable/c/9b6479da662c2ec4e931ed9f7228df46aa8c3766"},{"url":"https://git.kernel.org/stable/c/7fea5a310e3b2db24f7aafe64897e4e659ffbb7d"},{"url":"https://git.kernel.org/stable/c/428a82d987fcd8844e8868c85582eae75b4b5c51"},{"url":"https://git.kernel.org/stable/c/2b3a5dabe89e330413af403246b648c1890f368f"}],"title":"platform/surface: acpi-notify: Check ACPI companion before use","x_generator":{"engine":"bippy-1.2.0"}}}}