linux-kernel - patch "tools/firmware/ihex2fw: Replace explicit alignment with ALIGN" added to driver-core-next

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 25 Jan 2019 08:58:43 +0100
From:   <gregkh@...uxfoundation.org>
To:     andrew.smirnov@...il.com, akpm@...ux-foundation.org,
        cphealy@...il.com, dwmw2@...radead.org, gregkh@...uxfoundation.org,
        kyle@...nel.org, linux-kernel@...r.kernel.org,
        yamada.masahiro@...ionext.com
Subject: patch "tools/firmware/ihex2fw: Replace explicit alignment with ALIGN" added to driver-core-next


This is a note to let you know that I've just added the patch titled

    tools/firmware/ihex2fw: Replace explicit alignment with ALIGN

to my driver-core git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
in the driver-core-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


>From 925f8d4aad5ca1bf18987a3cdcb0e176bddddcf1 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andrew.smirnov@...il.com>
Date: Thu, 20 Dec 2018 23:28:41 -0800
Subject: tools/firmware/ihex2fw: Replace explicit alignment with ALIGN

(X + 3) & ~3 is the same as ALIGN(X, 4), so replace all of the
instances of the formwer in the code with the latter. While at it,
introduce a helper variable 'record_size' to avoid duplicating length
calculatin code. No functional change intended.

Cc: Chris Healy <cphealy@...il.com>
Cc: Kyle McMartin <kyle@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 tools/firmware/ihex2fw.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/firmware/ihex2fw.c b/tools/firmware/ihex2fw.c
index e081cef730d8..8925b60e51f5 100644
--- a/tools/firmware/ihex2fw.c
+++ b/tools/firmware/ihex2fw.c
@@ -135,6 +135,7 @@ int main(int argc, char **argv)
 static int process_ihex(uint8_t *data, ssize_t size)
 {
 	struct ihex_binrec *record;
+	size_t record_size;
 	uint32_t offset = 0;
 	uint32_t data32;
 	uint8_t type, crc = 0, crcbyte = 0;
@@ -161,12 +162,13 @@ static int process_ihex(uint8_t *data, ssize_t size)
 		len <<= 8;
 		len += hex(data + i, &crc); i += 2;
 	}
-	record = malloc((sizeof (*record) + len + 3) & ~3);
+	record_size = ALIGN(sizeof(*record) + len, 4);
+	record = malloc(record_size);
 	if (!record) {
 		fprintf(stderr, "out of memory for records\n");
 		return -ENOMEM;
 	}
-	memset(record, 0, (sizeof(*record) + len + 3) & ~3);
+	memset(record, 0, record_size);
 	record->len = len;
 
 	/* now check if we have enough data to read everything */
-- 
2.20.1