linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-03 02:04:16 -05:00

Files

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

coherent.c

dma-coherent: fix integer overflow in the reserved-memory dma allocation

2020-03-16 10:43:02 +01:00

contiguous.c

kernel: dma-contiguous: mark CMA parameters __initdata/__initconst

2019-10-30 11:10:45 -07:00

debug.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping

2019-11-28 11:16:43 -08:00

direct.c

dma-mapping: treat dev->bus_dma_mask as a DMA limit