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[34.13.242.33]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8ea0021b3bsm38486566b.49.2026.02.03.15.07.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Feb 2026 15:07:59 -0800 (PST) From: Artem Lytkin To: Sudip Mukherjee , Teddy Wang , Greg Kroah-Hartman Cc: linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Artem Lytkin Subject: [PATCH 1/4] staging: sm750fb: replace strcat() with memcpy() in lynxfb_setup() Date: Tue, 3 Feb 2026 23:07:55 +0000 Message-ID: <20260203230758.3056-1-iprintercanon@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace deprecated strcat() with memcpy() in option parsing. The destination buffer is allocated with kzalloc (zero-filled) and the write position is tracked via pointer, making the null-terminator scan in strcat() redundant and potentially unsafe. Signed-off-by: Artem Lytkin --- drivers/staging/sm750fb/sm750.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c index fecd7457e..4c6e84c03 100644 --- a/drivers/staging/sm750fb/sm750.c +++ b/drivers/staging/sm750fb/sm750.c @@ -1163,7 +1163,7 @@ static int __init lynxfb_setup(char *options) } else if (!strncmp(opt, "dual", strlen("dual"))) { g_dualview = 1; } else { - strcat(tmp, opt); + memcpy(tmp, opt, strlen(opt)); tmp += strlen(opt); if (options) *tmp++ = ':'; -- 2.43.0