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crypto: asym_tpm: correct zero out potential secrets
commit f93274e upstream. The function derive_pub_key() should be calling memzero_explicit() instead of memset() in case the complier decides to optimize away the call to memset() because it "knows" no one is going to touch the memory anymore. Cc: stable <stable@vger.kernel.org> Reported-by: Ilil Blum Shem-Tov <ilil.blum.shem-tov@intel.com> Tested-by: Ilil Blum Shem-Tov <ilil.blum.shem-tov@intel.com> Link: https://lore.kernel.org/r/X8ns4AfwjKudpyfe@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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