There was an issue which effective resulted in broken SSH login. References: * https://github.com/openssh/openssh-portable/pull/142 * https://github.com/GrapheneOS/hardened_malloc/issues/97 Further changes in either OpenSSH and/or Hardened Malloc might lead to regressions. Could you please consider adding a regression test for this? Running the regressions test suite with Hardened Malloc enabled might not only ensure compatibility with Hardened Malloc but also reveal some memory allocation related bugs which might happen in setups without Hardened Malloc.
Added: https://github.com/openssh/openssh-portable/commit/b744914fcb76d70761f1b667de95841b3fc80a56
closing resolved bugs as of 8.6p1 release