From 41e5d6f64d76435b4fd6856ddddb8e7c62087333 Mon Sep 17 00:00:00 2001 From: Azeem Shaikh Date: Tue, 30 May 2023 16:23:21 +0000 Subject: [PATCH] scsi: smartpqi: Replace all non-returning strlcpy() with strscpy() strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh Link: https://lore.kernel.org/r/20230530162321.984035-1-azeemshaikh38@gmail.com Reviewed-by: Kees Cook Acked-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 3669aff..772346f 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -6841,7 +6841,7 @@ static ssize_t pqi_lockup_action_store(struct device *dev, char *action_name; char action_name_buffer[32]; - strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); + strscpy(action_name_buffer, buffer, sizeof(action_name_buffer)); action_name = strstrip(action_name_buffer); for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { -- 2.7.4