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Sören Tempel 85eaf23bf4 seccomp: add support for "swapcontext" syscall in default policy
This system call is only available on the 32- and 64-bit PowerPC, it is
used by modern programming language implementations (such as gcc-go) to
implement coroutine features through userspace context switches.

Other container environment, such as Systemd nspawn already whitelist
this system call in their seccomp profile [1] [2]. As such, it would be
nice to also whitelist it in moby.

This issue was encountered on Alpine Linux GitLab CI system, which uses
moby, when attempting to execute gcc-go compiled software on ppc64le.

[1]: https://github.com/systemd/systemd/pull/9487
[2]: https://github.com/systemd/systemd/issues/9485

Signed-off-by: Sören Tempel <soeren+git@soeren-tempel.net>
2021-12-18 14:06:07 +01:00
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seccomp seccomp: add support for "swapcontext" syscall in default policy 2021-12-18 14:06:07 +01:00