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Thu, 24 Jul 2025 22:59:40 -0700 (PDT) Received: from localhost.localdomain ([38.188.108.234]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23fa4901bb8sm28747335ad.174.2025.07.24.22.59.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jul 2025 22:59:40 -0700 (PDT) From: Suchit Karunakaran To: masahiroy@kernel.org, linux-kbuild@vger.kernel.org Cc: linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, Suchit Karunakaran Subject: [PATCH] kconfig/lxdialog: replace strcpy() with strscpy() in inputbox.c Date: Fri, 25 Jul 2025 11:29:28 +0530 Message-Id: <20250725055928.37658-1-suchitkarunakaran@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" strcpy() performs no bounds checking and can lead to buffer overflows if the input string exceeds the destination buffer size. Replace it with strscpy(), which ensures the input is always NULL-terminated and prevents overflows. Signed-off-by: Suchit Karunakaran --- scripts/kconfig/lxdialog/inputbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog= /inputbox.c index 3c6e24b20f5b..8880ccaffa0b 100644 --- a/scripts/kconfig/lxdialog/inputbox.c +++ b/scripts/kconfig/lxdialog/inputbox.c @@ -40,7 +40,7 @@ int dialog_inputbox(const char *title, const char *prompt= , int height, int width if (!init) instr[0] =3D '\0'; else - strcpy(instr, init); + strscpy(instr, init, MAX_LEN + 1); =20 do_resize: if (getmaxy(stdscr) <=3D (height - INPUTBOX_HEIGHT_MIN)) --=20 2.39.5