Alois Wohlschlager
e7188e211a
Unfortunately, io_uring is totally opaque to seccomp, and while currently there
are no dangerous operations implemented, there is no guarantee that it remains
this way. This means that io_uring should be blocked entirely to ensure that
the sandbox is future-proof. This has not been observed to cause issues in
practice.
Change-Id: I45d3895f95abe1bc103a63969f444c334dbbf50d
12 lines
620 B
Markdown
12 lines
620 B
Markdown
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synopsis: "Block io_uring in the Linux sandbox"
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cls: 1611
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credits: alois31
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category: Breaking Changes
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The io\_uring API has the unfortunate property that it is not possible to selectively decide which operations should be allowed.
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This, together with the fact that new operations are routinely added, makes it a hazard to the proper function of the sandbox.
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Therefore, any access to io\_uring has been made unavailable inside the sandbox.
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As such, attempts to execute any system calls forming part of this API will fail with the error `ENOSYS`, as if io\_uring support had not been configured into the kernel.
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