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daemon: deny memory wx in transmission-daemon.service (#2573)

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Attempts to create memory mappings that are writable and executable at the same time, or to change existing memory mappings to become executable, or mapping shared memory segments as executable are prohibited.

There's no reason transmission should be doing that. If it does, it's because of malicious code exploiting a vulnerability.

See: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#MemoryDenyWriteExecute=
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Craig Andrews 2022-02-04 23:08:51 -05:00 committed by GitHub
parent 4455673bed
commit 56dab2bd18
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daemon/transmission-daemon.service
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@ -8,6 +8,7 @@ Type=notify
ExecStart=/usr/bin/transmission-daemon -f --log-error
ExecReload=/bin/kill -s HUP $MAINPID
NoNewPrivileges=true
MemoryDenyWriteExecute=true
[Install]
WantedBy=multi-user.target