On 2023-11-27 20:35, Hal Murray wrote:
Thanks.
Do you check the return value of EVP_MAC_CTX_get_mac_size()?
Nope, that's where it is crashing.
Note that EVP_MAC_CTX_get_mac_size() does not seem to be called in the
back-trace you listed.
I noticed that and assumed it was some compiler magic.
Attached is my test program.
I can reproduce the seg-fault using your code (I am working from the
"master" branch).
Looks like a bug to me.
It is unusual to call EVP_MAC_CTX_get_mac_size() without first calling
EVP_MAC_init(), but the code should handle that (and return 0, as per
the documentation).
Would you be able to open an issue for this?
https://github.com/openssl/openssl/issues
