On Wed, 17 Dec 2014, Andrey Ryabinin wrote:
> Commit ed4d4902ebdd ("mm, hugetlb: remove hugetlb_zero and hugetlb_infinity")
> replaced
> 'unsigned long hugetlb_zero' with 'int zero' leading to out-of-bounds access
> in proc_doulongvec_minmax().
> Use '.extra1 = NULL' instead of '.extra1 = &zero'. Passing NULL is equivalent
> to
> passing minimal value, which is 0 for unsigned types.
>
> Reported-by: Dmitry Vyukov <[email protected]>
> Suggested-by: Manfred Spraul <[email protected]>
> Fixes: ed4d4902ebdd ("mm, hugetlb: remove hugetlb_zero and hugetlb_infinity")
> Signed-off-by: Andrey Ryabinin <[email protected]>
Acked-by: David Rientjes <[email protected]>
Patch title is a little awkward, though, maybe "mm, hugetlb: remove
unnecessary lower bound on sysctl handlers"?
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