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ALSA: ice1712: replace strcpy() with strlcpy()

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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@gmail.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Joey Pabalinas 2018-03-01 04:17:07 -10:00 committed by Takashi Iwai
parent dd5f313be0
commit 338e17d3f5
2 changed files with 8 additions and 8 deletions
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8
sound/pci/ice1712/juli.c
View File

@ -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);
}

8
sound/pci/ice1712/quartet.c
View File

@ -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);
}