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(parent: 92d21ac) | patch
mmc: block: fix free of uninitialized 'idata->buf'
authorVille Viinikka <ville@tuxera.com>
Fri, 8 Jul 2016 15:27:02 +0000 (18:27 +0300)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 18 Jul 2016 09:30:54 +0000 (11:30 +0200)
commitbfe5b1b1e013f7b1c0fd2ac3b3c8c380114b3fb9
tree3b89c9c10ccc1017d9708ede0f4ab7a249946faetree | snapshot
parent92d21ac74a9e3c09b0b01c764e530657e4c85c49commit | diff
mmc: block: fix free of uninitialized 'idata->buf'

Set 'idata->buf' to NULL so that it never gets returned without
initialization. This fixes a bug where mmc_blk_ioctl_cmd() would
free both 'idata' and 'idata->buf' but 'idata->buf' was returned
uninitialized.

Fixes: 1ff8950c0433 ("mmc: block: change to use kmalloc when copy data from userspace")
Signed-off-by: Ville Viinikka <ville@tuxera.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/card/block.c diff | blob | history
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