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Re: new ...at() flag: AT_NO_JUMPS

From Jürg Billeter <j@bitron.ch>
Newsgroups linux.kernel
Subject Re: new ...at() flag: AT_NO_JUMPS
Date 2017-09-10 22:30 +0200
Message-ID <uoh1D-zk-13@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Hi Al,

Might it make sense to specify these lookup restrictions when opening
the directory (O_ROOT?) instead of specifying it for each lookup with
AT_* (or supporting both)? This might make it more useful when passing
directory fds between processes that do not use seccomp (where
AT_BENEATH could be enforced).

For my sandboxing use case, I'd be happy with either solution, though.
Is there anything I can do to help move this forward?

Best regards,
Jürg

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Re: new ...at() flag: AT_NO_JUMPS Jürg Billeter <j@bitron.ch> - 2017-09-10 22:30 +0200

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