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Sat, 10 Feb 2024 17:53:15 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCV6O9Ebb21G/lrlgwem4+12w8w/ssoqnMBcmAlTA9/i7CKwYyO3yj/QoX0Faoum6H5Nkw2vH94Wf3fg5FDvLQEJZEqqle0mPfhEFd1PPREyOP8JHzxHt3gz62i7mRAJ+cE8u9Fzx/sHjNWoBqj9C3AmG7KUsfkMLKRnyqLoXBOXrCZYUMM= Received: from localhost ([207.181.197.26]) by smtp.gmail.com with ESMTPSA id mu19-20020a056214329300b0068ca3ed8cb1sm2285785qvb.73.2024.02.10.17.53.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Feb 2024 17:53:15 -0800 (PST) Date: Sat, 10 Feb 2024 19:53:14 -0600 From: Lenko Donchev To: Konstantin Komarov , "Gustavo A. R. Silva" Cc: ntfs3@lists.linux.dev, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH] fs/ntfs3: use kcalloc() instead of kzalloc() Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790565588796835993 X-GMAIL-MSGID: 1790565588796835993 We are trying to get rid of all multiplications from allocation functions to prevent integer overflows[1]. Here the multiplication is obviously safe, but using kcalloc() is more appropriate and improves readability. This patch has no effect on runtime behavior. Link: https://github.com/KSPP/linux/issues/162 [1] Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [2] Signed-off-by: Lenko Donchev --- fs/ntfs3/frecord.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c index 3b42938a9d3b..d435446537ca 100644 --- a/fs/ntfs3/frecord.c +++ b/fs/ntfs3/frecord.c @@ -2636,7 +2636,7 @@ int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages, goto out1; } - pages_disk = kzalloc(npages_disk * sizeof(struct page *), GFP_NOFS); + pages_disk = kcalloc(npages_disk, sizeof(struct page *), GFP_NOFS); if (!pages_disk) { err = -ENOMEM; goto out2;