From a93921c2262fe73708ede663f7002f4058f24e92 Mon Sep 17 00:00:00 2001
From: Ondrej Kozina <okozina@redhat.com>
Date: Mon, 4 Nov 2024 11:24:25 +0100
Subject: [PATCH] Avoid dereferencing NULL pointer.

---
 lib/setup.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/setup.c b/lib/setup.c
index 5f53b79c..e5a162cb 100644
--- a/lib/setup.c
+++ b/lib/setup.c
@@ -5533,10 +5533,16 @@ static int _verify_key(struct crypt_device *cd,
 		} else
 			log_err(cd, _("Incorrect volume key specified for plain device."));
 	} else if (isLUKS1(cd->type)) {
+		if (!vk)
+			return -EINVAL;
+
 		r = LUKS_verify_volume_key(&cd->u.luks1.hdr, vk);
 		if (r == -EPERM)
 			log_err(cd, _("Volume key does not match the volume."));
 	} else if (isLUKS2(cd->type)) {
+		if (!vk)
+			return -EINVAL;
+
 		ri = LUKS2_reencrypt_status(&cd->u.luks2.hdr);
 		if (ri == CRYPT_REENCRYPT_INVALID)
 			return -EINVAL;