Files
linux/kernel
Kevin Grandemange 286c21de32 dma-coherent: fix integer overflow in the reserved-memory dma allocation
pageno is an int and the PAGE_SHIFT shift is done on an int,
overflowing if the memory is bigger than 2G

This can be reproduced using for example a reserved-memory of 4G

reserved-memory {
		    #address-cells = <2>;
		    #size-cells = <2>;
		    ranges;

		    reserved_dma: buffer@0 {
		        compatible = "shared-dma-pool";
		        no-map;
		        reg = <0x5 0x00000000 0x1 0x0>;
        };
};

Signed-off-by: Kevin Grandemange <kevin.grandemange@allegrodvt.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-03-16 10:43:02 +01:00
..
2019-12-18 18:07:31 +01:00
2020-01-09 13:23:40 +01:00
2019-12-04 19:44:14 -08:00
2020-01-08 16:32:55 +00:00
2019-05-24 20:16:01 +02:00
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2019-12-11 16:37:02 +08:00
2020-01-13 21:49:36 +01:00
2019-12-04 15:18:39 +01:00
2019-12-18 18:07:31 +01:00