Messages in this thread | | | From | (David Wagner) | Subject | Re: [PATCH] getrusage sucks | Date | Fri, 11 Nov 2005 05:06:00 +0000 (UTC) |
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Claudio Scordino wrote: >Does exist any _real_ reason why getrusage can't be invoked by a task to know >statistics of another task ?
Probably only super-user should be permitted to read the usage information about other processes. Allowing anyone to read anyone else's rusage would open up a bunch of side channels that sound pretty dangerous. For instance, user #1 might be able to mount a timing attack against crypto code being executed by user #2, and that doesn't sound good. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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