OpenBSD is a free, multi-platform 4.4BSD-based UNIX-like operating system. The 57th release, OpenBSD 7.6, comes with new features, various improvements, bug fixes, and tweaks. Security improvements Added -fret-clean option to the compiler, defaulting to off. This new option causes the caller to clean the return address off the stack after a call completes. The -fret-clean option was then enabled on amd64 for libc, libcrypto, ld.so, kernel, and all the ssh tools. Expose branch target identification … More →

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