Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
ASoC: Fix soc-cache buffer overflow bug
Make sure we stay within the cache boundaries when updating the
register cache.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
authored by Dimitris Papastamos and committed by Mark Brown d47372e8 cbfa5184
+3
-2
sound/soc/soc-cache.c
+3
-2
sound/soc/soc-cache.c
···
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data[1] = (value >> 8) & 0xff;
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data[2] = value & 0xff;
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-
if (!snd_soc_codec_volatile_register(codec, reg))
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-
reg_cache[reg] = value;
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+
if (!snd_soc_codec_volatile_register(codec, reg)
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+
&& reg < codec->driver->reg_cache_size)
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+
reg_cache[reg] = value;
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if (codec->cache_only) {
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codec->cache_sync = 1;