diff options
| author | ikaros <void0red@gmail.com> | 2026-05-27 21:03:26 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-27 21:18:46 +0300 |
| commit | c5296da2d516707862f8a2dbb4b515f777e5294f (patch) | |
| tree | 687bd49e27b0da23ba096f0f2b89c9723980d2e3 | |
| parent | 27d27e75ecb752a0b4da848c440bb3a88396ecba (diff) | |
| download | linux-c5296da2d516707862f8a2dbb4b515f777e5294f.tar.xz | |
ACPICA: validate handler object type in two places
ACPICA: validate handler object type in acpi_ev_has_default_handler()
and acpi_ev_find_region_handler().
Link: https://github.com/acpica/acpica/commit/f6fc648a1389
Signed-off-by: ikaros <void0red@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/48111441.fMDQidcC6G@rafael.j.wysocki
| -rw-r--r-- | drivers/acpi/acpica/evhandler.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c index 5a35dae945e2..f16c1148e602 100644 --- a/drivers/acpi/acpica/evhandler.c +++ b/drivers/acpi/acpica/evhandler.c @@ -130,6 +130,14 @@ acpi_ev_has_default_handler(struct acpi_namespace_node *node, /* Walk the linked list of handlers for this object */ while (handler_obj) { + + /* Validate handler object type before accessing fields */ + + if (handler_obj->common.type != + ACPI_TYPE_LOCAL_ADDRESS_HANDLER) { + break; + } + if (handler_obj->address_space.space_id == space_id) { if (handler_obj->address_space.handler_flags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) { @@ -292,6 +300,9 @@ union acpi_operand_object *acpi_ev_find_region_handler(acpi_adr_space_type /* Walk the handler list for this device */ while (handler_obj) { + if (handler_obj->common.type != ACPI_TYPE_LOCAL_ADDRESS_HANDLER) { + break; + } /* Same space_id indicates a handler is installed */ |