linux-kernel - [PATCH v14 02/26] crypto: iaa - Replace sprintf with sysfs

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

Message-Id: <20260125033537.334628-3-kanchana.p.sridhar@intel.com>
Date: Sat, 24 Jan 2026 19:35:13 -0800
From: Kanchana P Sridhar <kanchana.p.sridhar@...el.com>
To: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	hannes@...xchg.org,
	yosry.ahmed@...ux.dev,
	nphamcs@...il.com,
	chengming.zhou@...ux.dev,
	usamaarif642@...il.com,
	ryan.roberts@....com,
	21cnbao@...il.com,
	ying.huang@...ux.alibaba.com,
	akpm@...ux-foundation.org,
	senozhatsky@...omium.org,
	sj@...nel.org,
	kasong@...cent.com,
	linux-crypto@...r.kernel.org,
	herbert@...dor.apana.org.au,
	davem@...emloft.net,
	clabbe@...libre.com,
	ardb@...nel.org,
	ebiggers@...gle.com,
	surenb@...gle.com,
	kristen.c.accardi@...el.com,
	vinicius.gomes@...el.com,
	giovanni.cabiddu@...el.com
Cc: wajdi.k.feghali@...el.com,
	kanchana.p.sridhar@...el.com
Subject: [PATCH v14 02/26] crypto: iaa - Replace sprintf with sysfs_emit in sysfs show functions

Replace sprintf() with sysfs_emit() in verify_compress_show() and
sync_mode_show(). sysfs_emit() is preferred to format sysfs output as it
provides better bounds checking.  No functional changes.

Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
Acked-by: Kanchana P Sridhar <kanchana.p.sridhar@...el.com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
---
 drivers/crypto/intel/iaa/iaa_crypto_main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c
index e21d5fe9004c..8057e8d1571a 100644
--- a/drivers/crypto/intel/iaa/iaa_crypto_main.c
+++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c
@@ -5,6 +5,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/sysfs.h>
 #include <linux/device.h>
 #include <linux/iommu.h>
 #include <uapi/linux/idxd.h>
@@ -92,7 +93,7 @@ static bool use_irq;
 
 static ssize_t verify_compress_show(struct device_driver *driver, char *buf)
 {
-	return sprintf(buf, "%d\n", iaa_verify_compress);
+	return sysfs_emit(buf, "%d\n", iaa_verify_compress);
 }
 
 static ssize_t verify_compress_store(struct device_driver *driver,
@@ -150,11 +151,11 @@ static ssize_t sync_mode_show(struct device_driver *driver, char *buf)
 	int ret = 0;
 
 	if (!async_mode && !use_irq)
-		ret = sprintf(buf, "%s\n", "sync");
+		ret = sysfs_emit(buf, "%s\n", "sync");
 	else if (async_mode && !use_irq)
-		ret = sprintf(buf, "%s\n", "async");
+		ret = sysfs_emit(buf, "%s\n", "async");
 	else if (async_mode && use_irq)
-		ret = sprintf(buf, "%s\n", "async_irq");
+		ret = sysfs_emit(buf, "%s\n", "async_irq");
 
 	return ret;
 }
-- 
2.27.0