ath9k: fix tx99 potential info leak

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[ Upstream commit ee0a47186e ]

When the user sets count to zero the string buffer would remain
completely uninitialized which causes the kernel to parse its
own stack data, potentially leading to an info leak. In addition
to that, the string might be not terminated properly when the
user data does not contain a 0-terminator.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Reviewed-by: Christoph Böhmwalder <christoph@boehmwalder.at>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Miaoqing Pan 2017-09-27 09:13:34 +08:00 • committed by Greg Kroah-Hartman

parent 99ab42f783

commit e37eb54a00

1 changed files with 5 additions and 0 deletions

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drivers/net/wireless/ath/ath9k/tx99.c

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