From be6f19fc24c937112d251232b3dae7e05e96aad1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 5 Mar 2009 19:40:27 +0100 Subject: [PATCH] sdio: check that addresses are within the address space Signed-off-by: Pierre Ossman --- drivers/mmc/core/sdio_ops.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c index c8fa095a4488..4eb7825fd1a7 100644 --- a/drivers/mmc/core/sdio_ops.c +++ b/drivers/mmc/core/sdio_ops.c @@ -76,6 +76,10 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn, BUG_ON(!card); BUG_ON(fn > 7); + /* sanity check */ + if (addr & ~0x1FFFF) + return -EINVAL; + memset(&cmd, 0, sizeof(struct mmc_command)); cmd.opcode = SD_IO_RW_DIRECT; @@ -125,6 +129,10 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, WARN_ON(blocks == 0); WARN_ON(blksz == 0); + /* sanity check */ + if (addr & ~0x1FFFF) + return -EINVAL; + memset(&mrq, 0, sizeof(struct mmc_request)); memset(&cmd, 0, sizeof(struct mmc_command)); memset(&data, 0, sizeof(struct mmc_data)); -- 2.20.1