All information should be in the links, patch is already committed upstream for 0.9.13.
In the follow-up it is mentioned that https://github.com/LibVNC/libvncserver/commit/d0a76539835d11c0f4723499f8be4bc9c7724eb9 is a prerequisite for the fix to apply.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=578ad0d4d400d6ab947a44aa56dde4186a0d256e commit 578ad0d4d400d6ab947a44aa56dde4186a0d256e Author: Alexander Tsoy <alexander@tsoy.me> AuthorDate: 2020-01-14 17:04:01 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2020-01-15 19:32:45 +0000 net-libs/libvncserver: fix crash on exit Closes: https://bugs.gentoo.org/705124 Signed-off-by: Alexander Tsoy <alexander@tsoy.me> Closes: https://github.com/gentoo/gentoo/pull/14337 Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org> .../libvncserver-0.9.12-fix-shutdown-crash.patch | 63 ++++++++++++++++++ .../libvncserver/libvncserver-0.9.12-r4.ebuild | 74 ++++++++++++++++++++++ 2 files changed, 137 insertions(+)