On Thu, Mar 1, 2018 at 4:17 PM, Joey Pabalinas <joeypabalinas@xxxxxxxxx> wrote:
> Replace unsafe usages of strcpy() to copy the name
> argument into the sid.name buffer with strlcpy()
> to guard against possible buffer overflows.
>
> Signed-off-by: Joey Pabalinas <joeypabalinas@xxxxxxxxx>
> Suggested-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> 2 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
> index 0dbaccf61f33270608..21806bab4757241a9e 100644
> --- a/sound/pci/ice1712/juli.c
> +++ b/sound/pci/ice1712/juli.c
> @@ -27,6 +27,7 @@
> #include <linux/interrupt.h>
> #include <linux/init.h>
> #include <linux/slab.h>
> +#include <linux/string.h>
> #include <sound/core.h>
> #include <sound/tlv.h>
>
> @@ -425,10 +426,9 @@ DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
> static struct snd_kcontrol *ctl_find(struct snd_card *card,
> const char *name)
> {
> - struct snd_ctl_elem_id sid;
> - memset(&sid, 0, sizeof(sid));
> - /* FIXME: strcpy is bad. */
> - strcpy(sid.name, name);
> + struct snd_ctl_elem_id sid = {0};
> +
> + strlcpy(sid.name, name, sizeof(sid.name));
> sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
> return snd_ctl_find_id(card, &sid);
> }
> diff --git a/sound/pci/ice1712/quartet.c b/sound/pci/ice1712/quartet.c
> index d145b5eb7ff86d978d..5bc836241c977feb51 100644
> --- a/sound/pci/ice1712/quartet.c
> +++ b/sound/pci/ice1712/quartet.c
> @@ -26,6 +26,7 @@
> #include <linux/interrupt.h>
> #include <linux/init.h>
> #include <linux/slab.h>
> +#include <linux/string.h>
> #include <sound/core.h>
> #include <sound/tlv.h>
> #include <sound/info.h>
> @@ -785,10 +786,9 @@ DECLARE_TLV_DB_SCALE(qtet_master_db_scale, -6350, 50, 1);
> static struct snd_kcontrol *ctl_find(struct snd_card *card,
> const char *name)
> {
> - struct snd_ctl_elem_id sid;
> - memset(&sid, 0, sizeof(sid));
> - /* FIXME: strcpy is bad. */
> - strcpy(sid.name, name);
> + struct snd_ctl_elem_id sid = {0};
> +
> + strlcpy(sid.name, name, sizeof(sid.name));
> sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
> return snd_ctl_find_id(card, &sid);
> }
> --
> 2.16.2
--
With Best Regards,
Andy Shevchenko
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