Richard Fitzgerald 07ab8ba8c7 firmware: cs_dsp: Fix overrun of unterminated control name string ... [ Upstream commit 5b933c7262 ] For wmfw format v2 and later the coefficient name strings have a length field and are NOT null-terminated. Use kasprintf() to convert the unterminated string into a null-terminated string in an allocated buffer. The previous code handled this duplication incorrectly using kmemdup() and getting the length from a strlen() of the (unterminated) source string. This resulted in creating a string that continued up to the next byte in the firmware file that just happened to be 0x00. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: f6bc909e76 ("firmware: cs_dsp: add driver to support firmware loading on Cirrus Logic DSPs") Link: https://lore.kernel.org/r/20220412163927.1303470-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-27 14:40:57 +02:00
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cs_dsp.c	firmware: cs_dsp: Fix overrun of unterminated control name string	2022-04-27 14:40:57 +02:00