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mmc: sdio: Check for CISTPL_VERS_1 buffer size
authorPali Rohár <pali@kernel.org>
Mon, 27 Jul 2020 13:38:34 +0000 (15:38 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 29 Oct 2020 09:12:11 +0000 (10:12 +0100)
commitfa0a1c79c0028c5724d89c3d38b47ca9c322966c
treeeb97ce9557e389e1b64070ad10ca209cbf4eb5e5tree
parentec650318ebb7f7a75f86ce3cdc6d86baa2ebc913commit | diff
mmc: sdio: Check for CISTPL_VERS_1 buffer size

[ Upstream commit 8ebe2607965d3e2dc02029e8c7dd35fbe508ffd0 ]

Before parsing CISTPL_VERS_1 structure check that its size is at least two
bytes to prevent buffer overflow.

Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20200727133837.19086-2-pali@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/mmc/core/sdio_cis.c diff | blob | history
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