From: Kees Cook <kees@kernel.org>
Date: Wed, 10 Jul 2024 22:57:09 +0000 (-0700)
Subject: affs: struct affs_head: Replace 1-element array with flexible array
X-Git-Tag: v6.11-rc1~162^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=38a381a0bc57be2927c6744733ba274cefd13e9f;p=thirdparty%2Flinux.git

affs: struct affs_head: Replace 1-element array with flexible array

AFFS uses struct affs_head's "table" array as a flexible array. Switch
this to a proper flexible array[1]. There are no sizeof() uses; struct
affs_head is only ever uses via direct casts. No binary output
differences were found after this change.

Link: https://github.com/KSPP/linux/issues/79 [1]
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/affs/amigaffs.h b/fs/affs/amigaffs.h
index 81fb396d4dfa3..0f739ea56293c 100644
--- a/fs/affs/amigaffs.h
+++ b/fs/affs/amigaffs.h
@@ -80,7 +80,7 @@ struct affs_head {
 	__be32 spare1;
 	__be32 first_data;
 	__be32 checksum;
-	__be32 table[1];
+	__be32 table[];
 };
 
 struct affs_tail {