On Sun, Apr 15, 2012 at 03:48:18PM +1200, Michael Kerrisk (man-pages) wrote:
> Cyrill,
>
> While reviewing your patch to the prctl() manual page, I noticed the
> following code inkernel/sys.c::prctl_set_mm():
>
> if (opt != PR_SET_MM_START_BRK && opt != PR_SET_MM_BRK) {
> /* It must be existing VMA */
> if (!vma || vma->vm_start > addr)
> goto out;
> }
>
> At this point, the code causes an exit with error set to zero (i.e.,
> success). This looks unintended to me. Is the code correct? I suspect
> a return of -EFAULT or -ENOMEM is warranted.
Hi Michael, yup, -EINVAL escaped (I think EFAULT or ENOMEM is not really
good here). I'll fix and send update. Thanks!
Cyrill
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