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is_kmap_addr() is only looking at the kmap() address range which may cause check_heap_object() to miss checking an overflow on a kmap_local_page() page. Add a check for the kmap_local_page() address range to is_kmap_addr(). Cc: Matthew Wilcox <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Acked-by: Andrew Morton <akpm@linux-foudation.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>