{"id":"CVE-2026-100072","state":"PUBLISHED","title":"ACPI: platform: Use acpi_bus_get_primary_device()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: platform: Use acpi_bus_get_primary_device()\n\nThe acpi_get_first_physical_node() usage in acpi_platform_fill_resource()\nand acpi_create_platform_device() is generally unsafe because in theory\nthe device returned by it may be freed at any time [1].\n\nIt is also inefficient because acpi_get_first_physical_node() is called\nmultiple times for the same argument which can be avoided.\n\nAddress these issues by using acpi_bus_get_primary_device() instead of\nacpi_get_first_physical_node() and adjusting the code to call it just\nonce at the beginning of and acpi_create_platform_device() and drop\nthe device reference acquired by it upon the return from that function.","publishedAt":"2026-09-25T13:06:45.579Z","updatedAt":"2026-10-21T12:38:45.183Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"a75e5de593ef158feb17989bff7730c5a3d82503","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"527a497fb2ef77a95170eefe2007e2c4c957bd2c","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/acpi_platform.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/acpi_platform.c"]}],"references":["https://git.kernel.org/stable/c/a75e5de593ef158feb17989bff7730c5a3d82503","https://git.kernel.org/stable/c/527a497fb2ef77a95170eefe2007e2c4c957bd2c","https://git.kernel.org/stable/c/c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71","https://git.kernel.org/stable/c/a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100072.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100072","state":"PUBLISHED","datePublished":"2026-09-25T13:06:45.579Z","dateUpdated":"2026-10-21T12:38:45.183Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.456Z"},"containers":{"cna":{"title":"ACPI: platform: Use acpi_bus_get_primary_device()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: platform: Use acpi_bus_get_primary_device()\n\nThe acpi_get_first_physical_node() usage in acpi_platform_fill_resource()\nand acpi_create_platform_device() is generally unsafe because in theory\nthe device returned by it may be freed at any time [1].\n\nIt is also inefficient because acpi_get_first_physical_node() is called\nmultiple times for the same argument which can be avoided.\n\nAddress these issues by using acpi_bus_get_primary_device() instead of\nacpi_get_first_physical_node() and adjusting the code to call it just\nonce at the beginning of and acpi_create_platform_device() and drop\nthe device reference acquired by it upon the return from that function."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"a75e5de593ef158feb17989bff7730c5a3d82503","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"527a497fb2ef77a95170eefe2007e2c4c957bd2c","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71","versionType":"git"},{"version":"3b95bd160547f56a68aeb972c33ae9511e7a8380","status":"affected","lessThan":"a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/acpi_platform.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/acpi_platform.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a75e5de593ef158feb17989bff7730c5a3d82503"},{"url":"https://git.kernel.org/stable/c/527a497fb2ef77a95170eefe2007e2c4c957bd2c"},{"url":"https://git.kernel.org/stable/c/c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71"},{"url":"https://git.kernel.org/stable/c/a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:38:45.183Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}