linux-hardening - [PATCH 5/8][next] scsi: aacraid: Replace one-element array with flexible-array member in struct user

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Date:   Tue, 22 Feb 2022 01:30:21 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Adaptec OEM Raid Solutions <aacraid@...rosemi.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-hardening@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH 5/8][next] scsi: aacraid: Replace one-element array with
 flexible-array member in struct user_sgmap64

Replace one-element array with flexible-array member in struct user_sgmap64.

This issue was found with the help of Coccinelle and audited and fixed,
manually.

Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/79
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 drivers/scsi/aacraid/aacraid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 573cb36c2e15..fa5a93b4dc7b 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -521,7 +521,7 @@ struct sgmap64 {
 
 struct user_sgmap64 {
 	u32		count;
-	struct user_sgentry64 sg[1];
+	struct user_sgentry64 sg[];
 };
 
 struct sgmapraw {
-- 
2.27.0