Merge tag 'sound-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became a slightly big update, but it's more or less expected, as
  the first batch after holidays.

  All changes (but for the last two last-minute fixes) have been stewed
  in linux-next long enough, so it's fairly safe to take:

   - PCM UAF fix in 32bit compat layer

   - ASoC board-specific fixes for Intel, AMD, Medathek, Qualcomm

   - SOF power management fixes

   - ASoC Intel link failure fixes

   - A series of fixes for USB-audio regressions

   - CS35L41 HD-audio codec regression fixes

   - HD-audio device-specific fixes / quirks

  Note that one SPI patch has been taken in ASoC subtree mistakenly, and
  the same fix is found in spi tree, but it should be OK to apply"

* tag 'sound-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (39 commits)
  ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
  ALSA: usb-audio: Fix possible NULL pointer dereference in snd_usb_pcm_has_fixed_rate()
  ALSA: hda/realtek: Enable mute/micmute LEDs on HP Spectre x360 13-aw0xxx
  ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets
  ASoC: fsl_ssi: Rename AC'97 streams to avoid collisions with AC'97 CODEC
  ALSA: hda/hdmi: Add a HP device 0x8715 to force connect list
  ALSA: control-led: use strscpy in set_led_id()
  ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format()
  ASoC: dt-bindings: qcom,lpass-tx-macro: correct clocks on SC7280
  ASoC: dt-bindings: qcom,lpass-wsa-macro: correct clocks on SM8250
  ASoC: qcom: Fix building APQ8016 machine driver without SOUNDWIRE
  ALSA: hda: cs35l41: Check runtime suspend capability at runtime_idle
  ALSA: hda: cs35l41: Don't return -EINVAL from system suspend/resume
  ASoC: fsl_micfil: Correct the number of steps on SX controls
  ALSA: hda/realtek: fix mute/micmute LEDs don't work for a HP platform
  Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing"
  ALSA: usb-audio: More refactoring of hw constraint rules
  ALSA: usb-audio: Relax hw constraints for implicit fb sync
  ALSA: usb-audio: Make sure to stop endpoints before closing EPs
  ALSA: hda - Enable headset mic on another Dell laptop with ALC3254
  ...

1 files changed, 2 insertions, 3 deletions

diff --git a/sound/core/control_led.c b/sound/core/control_led.c
index f975cc85772b..3cadd40100f3 100644
--- a/sound/core/control_led.c
+++ b/sound/core/control_led.c
@@ -530,12 +530,11 @@ static ssize_t set_led_id(struct snd_ctl_led_card *led_card, const char *buf, si
 			  bool attach)
 {
 	char buf2[256], *s, *os;
-	size_t len = max(sizeof(s) - 1, count);
 	struct snd_ctl_elem_id id;
 	int err;
 
-	strncpy(buf2, buf, len);
-	buf2[len] = '\0';
+	if (strscpy(buf2, buf, sizeof(buf2)) < 0)
+		return -E2BIG;
 	memset(&id, 0, sizeof(id));
 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 	s = buf2;