From: Thomas Weißschuh <thomas@t-8ch.de>
Date: Thu, 2 Mar 2023 15:27:58 +0000 (+0000)
Subject: libblkid: nvidia_raid: verify superblock size
X-Git-Tag: v2.39-rc1~18^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d8d164db5ee217034dea7788263b532114bcd2fd;p=thirdparty%2Futil-linux.git

libblkid: nvidia_raid: verify superblock size

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---

diff --git a/libblkid/src/superblocks/nvidia_raid.c b/libblkid/src/superblocks/nvidia_raid.c
index 5db8ec260e..35c663c8d0 100644
--- a/libblkid/src/superblocks/nvidia_raid.c
+++ b/libblkid/src/superblocks/nvidia_raid.c
@@ -24,6 +24,8 @@ struct nv_metadata {
 } __attribute__((packed));
 
 #define NVIDIA_SIGNATURE		"NVIDIA"
+#define NVIDIA_SUPERBLOCK_SIZE		120
+
 
 static int probe_nvraid(blkid_probe pr,
 		const struct blkid_idmag *mag __attribute__((__unused__)))
@@ -46,6 +48,8 @@ static int probe_nvraid(blkid_probe pr,
 
 	if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
 		return 1;
+	if (le32_to_cpu(nv->size) * 4 != NVIDIA_SUPERBLOCK_SIZE)
+		return 1;
 	if (blkid_probe_sprintf_version(pr, "%u", le16_to_cpu(nv->version)) != 0)
 		return 1;
 	if (blkid_probe_set_magic(pr, off, sizeof(nv->vendor),