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From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,hirofumi@mail.parknet.co.jp,m32285159@gmail.com,akpm@linux-foundation.org
Subject: + fs-fat-inode-replace-sprintf-with-scnprintf.patch added to mm-nonmm-unstable branch
Date: Thu, 04 Jun 2026 12:12:26 -0700	[thread overview]
Message-ID: <20260604191226.8659F1F00893@smtp.kernel.org> (raw)


The patch titled
     Subject: fs: fat: inode: replace sprintf() with scnprintf()
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     fs-fat-inode-replace-sprintf-with-scnprintf.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fs-fat-inode-replace-sprintf-with-scnprintf.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Maxwell Doose <m32285159@gmail.com>
Subject: fs: fat: inode: replace sprintf() with scnprintf()
Date: Wed, 3 Jun 2026 09:52:21 -0500

The kernel documentation notes that sprintf() is deprecated and unsafe. 
Replace it with the more preferred scnprintf() to help with hardening.

Link: https://lore.kernel.org/20260603145222.59012-1-m32285159@gmail.com
Signed-off-by: Maxwell Doose <m32285159@gmail.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/fat/inode.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/fat/inode.c~fs-fat-inode-replace-sprintf-with-scnprintf
+++ a/fs/fat/inode.c
@@ -1786,7 +1786,7 @@ int fat_fill_super(struct super_block *s
 	 */
 
 	error = -EINVAL;
-	sprintf(buf, "cp%d", sbi->options.codepage);
+	scnprintf(buf, sizeof(buf), "cp%d", sbi->options.codepage);
 	sbi->nls_disk = load_nls(buf);
 	if (!sbi->nls_disk) {
 		fat_msg(sb, KERN_ERR, "codepage %s not found", buf);
_

Patches currently in -mm which might be from m32285159@gmail.com are

fs-fat-inode-replace-sprintf-with-scnprintf.patch


                 reply	other threads:[~2026-06-04 19:12 UTC|newest]

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