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First parameter to EVP_MD_CTX_copy should not be initialized #500

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Aug 19, 2024
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First parameter to EVP_MD_CTX_copy should not be initialized #500

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3 changes: 2 additions & 1 deletion aws-lc-rs/src/digest/digest_ctx.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,8 @@ impl DigestContext {
fn try_clone(&self) -> Result<Self, &'static str> {
let mut dc = MaybeUninit::<EVP_MD_CTX>::uninit();
unsafe {
EVP_MD_CTX_init(dc.as_mut_ptr());
// The first parameter of `EVP_MD_CTX_copy` should not be initialized.
// https://github.com/aws/aws-lc/blob/98ccf4a316401112943bed604562102ad52efac6/include/openssl/digest.h#L280
if 1 != EVP_MD_CTX_copy(dc.as_mut_ptr(), self.as_ptr()) {
return Err("EVP_MD_CTX_copy failed");
};
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