cURL fails with 'elliptic curve routines:EC_POINT_set_affine_coordinates:point is not on curve' error

[Karen Arutyunov]

Hello,

After building an optimized version of cURL 7.76.0 with OpenSSL 1.1.1n 
using Clang 14.0.6, running

curl https://www.example.com

ends up with the following error:

curl: (35) error:1012606B:elliptic curve 
routines:EC_POINT_set_affine_coordinates:point is not on curve

Reproduces on Linux (-O3) and Windows (-O2). Doesn't reproduce for 
non-optimized builds and for Clang versions prior to 14.0.

Note that OpenSSL is built with the no-asm configuration option.

Does anybody know what this could be or has experienced something similar?

Thanks,
Karen