efi_loader: initialize device path on alloc
Since the backing memory for a new device path can contain stale
data we have to make sure that we zero the buffer. Otherwise some
code paths that don't set all fields in a structure backed by this
device path might contain unwanted stale data.
Signed-off-by: Patrick Wildt <patrick@blueri.se>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index 2262782..ab28b2f 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -66,6 +66,7 @@
return NULL;
}
+ memset(buf, 0, sz);
return buf;
}