| Message ID | 20240412101402.14741-1-amishin@t-argos.ru |
|---|---|
| State | New |
| Headers | show |
| Series | ACPICA: Handle memory allocation failure | expand |
diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c index 2b84ac093698..8dbab6932049 100644 --- a/drivers/acpi/acpica/dbconvert.c +++ b/drivers/acpi/acpica/dbconvert.c @@ -174,6 +174,8 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object) elements = ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS * sizeof(union acpi_object)); + if (!elements) + return (AE_NO_MEMORY); this = string; for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {
In acpi_db_convert_to_package() ACPI_ALLOCATE_ZEROED() may return NULL in case of memory allocation error. This will lead to NULL pointer dereference. Fix this bug by adding NULL return check. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 995751025572 ("ACPICA: Linuxize: Export debugger files to Linux") Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru> --- drivers/acpi/acpica/dbconvert.c | 2 ++ 1 file changed, 2 insertions(+)