From: Rasmus Villemoes <email@example.com> To: Mel Gorman <firstname.lastname@example.org> Cc: Andrew Morton <email@example.com>, Alexander Lobakin <firstname.lastname@example.org>, Vlastimil Babka <email@example.com>, firstname.lastname@example.org, email@example.com Subject: Re: [PATCH] mm/page_alloc: __alloc_pages_bulk(): do bounds check before accessing array Date: Mon, 21 Jun 2021 18:01:17 +0200 [thread overview] Message-ID: <firstname.lastname@example.org> (raw) In-Reply-To: <20210507102634.GD9524@techsingularity.net> On 07/05/2021 12.26, Mel Gorman wrote: > On Fri, May 07, 2021 at 08:45:03AM +0200, Rasmus Villemoes wrote: >> In the event that somebody would call this with an already fully >> populated page_array, the last loop iteration would do an access >> beyond the end of page_array. >> >> It's of course extremely unlikely that would ever be done, but this >> triggers my internal static analyzer. Also, if it really is not >> supposed to be invoked this way (i.e., with no NULL entries in >> page_array), the nr_populated<nr_pages check could simply be removed >> instead. >> >> Fixes: 0f87d9d30f21 (mm/page_alloc: add an array-based interface to the bulk page allocator) >> Signed-off-by: Rasmus Villemoes <email@example.com> > > Acked-by: Mel Gorman <firstname.lastname@example.org> > Andrew, will you get this to Linus before 5.13 is released? I got a mail on May 9 that it had been added to your queue, but I don't see it in master yet. Rasmus
next prev parent reply other threads:[~2021-06-21 16:01 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-07 6:45 Rasmus Villemoes 2021-05-07 10:26 ` Mel Gorman 2021-06-21 16:01 ` Rasmus Villemoes [this message] 2021-06-23 4:49 ` Andrew Morton
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