wil6210: fix memory access violation in wil_memcpy_from/toio_32
authorDedy Lansky <qca_dlansky@qca.qualcomm.com>
Wed, 5 Apr 2017 11:58:11 +0000 (14:58 +0300)
committerKalle Valo <kvalo@qca.qualcomm.com>
Thu, 13 Apr 2017 12:46:12 +0000 (15:46 +0300)
commit0f6edfe2bbbb59d161580cb4870fcc46f5490f85
treee12f2c067aac939237b30a3087c2f34aab28d0b4
parent4d4f8132f72b78d1260ec9afa94c3b44deb12adf
wil6210: fix memory access violation in wil_memcpy_from/toio_32

In case count is not multiple of 4, there is a read access in
wil_memcpy_toio_32() from outside src buffer boundary.
In wil_memcpy_fromio_32(), in case count is not multiple of 4, there is
a write access to outside dst io memory boundary.

Fix these issues with proper handling of the last 1 to 4 copied bytes.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
drivers/net/wireless/ath/wil6210/main.c