ASoC: Intel: avs: Fix potential buffer overflow by snprintf()

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commit ca3b7b9dc9 upstream.

snprintf() returns the would-be-filled size when the string overflows
the given buffer size, hence using this value may result in a buffer
overflow (although it's unrealistic).

This patch replaces it with a safer version, scnprintf() for papering
over such a potential issue.

Fixes: f1b3b320bd ("ASoC: Intel: avs: Generic soc component driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220801165420.25978-2-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Takashi Iwai 2022-08-01 18:54:18 +02:00 • committed by Greg Kroah-Hartman

parent 94e45c0cd8

commit 840311a09f

1 changed files with 2 additions and 2 deletions

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sound/soc/intel/avs/pcm.c

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