4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Limonciello <mario.limonciello@xxxxxxxx> commit affab51082174f60ef71ced8ab5fbe71f00e9ae3 upstream. ACPI buffers were being allocated but never freed. Reported-by: Pinzhen Xu <pinzhen.xu@xxxxxxxxx> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Darren Hart (VMware) <dvhart@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/platform/x86/dell-smbios-wmi.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/platform/x86/dell-smbios-wmi.c +++ b/drivers/platform/x86/dell-smbios-wmi.c @@ -78,6 +78,7 @@ static int run_smbios_call(struct wmi_de dev_dbg(&wdev->dev, "result: [%08x,%08x,%08x,%08x]\n", priv->buf->std.output[0], priv->buf->std.output[1], priv->buf->std.output[2], priv->buf->std.output[3]); + kfree(output.pointer); return 0; }