[RFC PATCH v1 1/5] fs: Add support for an O_MAYEXEC flag on sys_open()
fweimer at redhat.com
Tue Apr 16 11:49:39 UTC 2019
* Steve Grubb:
> This flag that is being proposed means that you would have to patch all
> interpreters to use it. If you are sure that upstreams will accept that, why
> not just change the policy to interpreters shouldn't execute anything unless
> the execute bit is set? That is simpler and doesn't need a kernel change. And
> setting the execute bit is an auditable event.
I think we need something like O_MAYEXEC so that security policies can
be enforced and noexec mounts can be detected. I don't think it's a
good idea to do this in userspace, especially the latter.
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