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SubjectRe: brk() system call, RLIMIT_AS, and RLIMIT_DATA in 32-bit compatibility mode


> Notice that from 0xc0000000 upwards it continues expanding the
> program break above 0xc0000000 up to 0xff000000 where it also starts
> failing and returning the current break. Is this an expected
> behaviour when running an application in 64-bit machine in 32-bit
> compatibility mode? Is RLIMIT_AS and RLIMIT_DATA being honoured?

I completely ignored the PER_LINUX32_3GB personality and thought this would be enforced by default in this case.

Thanks,

--
Ramon de C Valle / Red Hat Security Response Team


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