4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Pei Xiao <xiaopei01@xxxxxxxxxx> [ Upstream commit a5242874488eba2b9062985bf13743c029821330 ] ACPICA commit 4d4547cf13cca820ff7e0f859ba83e1a610b9fd0 ACPI_ALLOCATE_ZEROED() may fail, elements might be NULL and will cause NULL pointer dereference later. Link: https://github.com/acpica/acpica/commit/4d4547cf Signed-off-by: Pei Xiao <xiaopei01@xxxxxxxxxx> Link: https://patch.msgid.link/tencent_4A21A2865B8B0A0D12CAEBEB84708EDDB505@xxxxxx [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/acpi/acpica/dbconvert.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c index 9fd9a98a9cbe8..5255a0837c82b 100644 --- a/drivers/acpi/acpica/dbconvert.c +++ b/drivers/acpi/acpica/dbconvert.c @@ -170,6 +170,8 @@ 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++) { -- 2.43.0
