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scsi: sym53c8xx: Replace all non-returning strlcpy() with strscpy()

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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@gmail.com>
Link: https://lore.kernel.org/r/20230530160323.412484-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Azeem Shaikh 2023-05-30 16:03:23 +00:00 committed by Martin K. Petersen
parent dbe37c71d1
commit af0ce90200
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/sym53c8xx_2/sym_glue.c
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@ -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) &&