Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: platform: Use acpi_bus_get_primary_device() The acpi_get_first_physical_node() usage in acpi_platform_fill_resource() and acpi_create_platform_device() is generally unsafe because in theory the device returned by it may be freed at any time [1]. It is also inefficient because acpi_get_first_physical_node() is called multiple times for the same argument which can be avoided. Address these issues by using acpi_bus_get_primary_device() instead of acpi_get_first_physical_node() and adjusting the code to call it just once at the beginning of and acpi_create_platform_device() and drop the device reference acquired by it upon the return from that function.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3b95bd160547f56a68aeb972c33ae9511e7a8380 to < a75e5de593ef158feb17989bff7730c5a3d82503affected3b95bd160547f56a68aeb972c33ae9511e7a8380 to < 527a497fb2ef77a95170eefe2007e2c4c957bd2caffected3b95bd160547f56a68aeb972c33ae9511e7a8380 to < c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71affected3b95bd160547f56a68aeb972c33ae9511e7a8380 to < a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bdaffected
Linux Linux
Default version status: affected
4.6affected0 to < 4.6unaffected6.6.160 to ≤ 6.6.*unaffected6.12.114 to ≤ 6.12.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected