[PATCH] scsi: sym53c8xx: Replace all non-returning strlcpy with strscpy

From: Azeem Shaikh
Date: Tue May 30 2023 - 12:04:00 EST


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 <azeemshaikh38@xxxxxxxxx>
---
drivers/scsi/sym53c8xx_2/sym_glue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index ee36a9c15d9c..17491ba10439 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -1286,7 +1286,7 @@ static struct Scsi_Host *sym_attach(const struct scsi_host_template *tpnt, int u
/*
* Edit its name.
*/
- strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name));
+ strscpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name));
sprintf(np->s.inst_name, "sym%d", np->s.unit);

if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) &&