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

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merged 1 commit into from
Feb 5, 2022

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candrews
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@candrews candrews commented Feb 4, 2022

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=

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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CI failure is unrelated to the PR

@ckerr ckerr merged commit 56dab2b into transmission:main Feb 5, 2022
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