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From:   Vlastimil Babka <vbabka@suse.cz>
To:     stable@vger.kernel.org
Cc:     Ben Hutchings <ben.hutchings@codethink.co.uk>,
        Matthew Wilcox <willy@infradead.org>,
        Ajay Kaher <akaher@vmware.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Vlastimil Babka <vbabka@suse.cz>
Subject: [PATCH STABLE ONLY] add missing page refcount overflow checks
Date:   Fri, 29 Nov 2019 10:03:48 +0100
Message-Id: <20191129090351.3507-1-vbabka@suse.cz>
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This collection of patches add the missing overflow checks in arch-specific
gup.c variants for x86 and s390. Those were missed in backport of 8fde12ca79af
("mm: prevent get_user_pages() from overflowing page refcount") as mainline
had a single gup.c implementation at that point. See individual patches for
details.

Vlastimil

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2.24.0