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spi: cs42l43: Property entry should be a null-terminated array

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The software node does not specify a count of property entries, so the
array must be null-terminated.

When unterminated, this can lead to a fault in the downstream cs35l56
amplifier driver, because the node parse walks off the end of the
array into unknown memory.

Fixes: 0ca645ab5b ("spi: cs42l43: Add speaker id support to the bridge configuration")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220371
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/20250731160109.1547131-1-simont@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Simon Trimmer
2025-07-31 16:01:09 +00:00
committed by Mark Brown
parent 926406a85a
commit ffcfd071ee
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-cs42l43.c
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@@ -295,7 +295,7 @@ static struct spi_board_info *cs42l43_create_bridge_amp(struct cs42l43_spi *priv
struct spi_board_info *info;
if (spkid >= 0) {
props = devm_kmalloc(priv->dev, sizeof(*props), GFP_KERNEL);
props = devm_kcalloc(priv->dev, 2, sizeof(*props), GFP_KERNEL);
if (!props)
return NULL;