From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT

---
 kernel/drivers/scsi/scsi.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/kernel/drivers/scsi/scsi.c b/kernel/drivers/scsi/scsi.c
index 6ad834d..d6c25a8 100644
--- a/kernel/drivers/scsi/scsi.c
+++ b/kernel/drivers/scsi/scsi.c
@@ -317,11 +317,18 @@
 	if (result)
 		return -EIO;
 
-	/* Sanity check that we got the page back that we asked for */
+	/*
+	 * Sanity check that we got the page back that we asked for and that
+	 * the page size is not 0.
+	 */
 	if (buffer[1] != page)
 		return -EIO;
 
-	return get_unaligned_be16(&buffer[2]) + 4;
+	result = get_unaligned_be16(&buffer[2]);
+	if (!result)
+		return -EIO;
+
+	return result + 4;
 }
 
 /**

--
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