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(parent: 620d5ea) | patch
wifi: wfx: prevent underflow in wfx_send_pds()
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 19 Aug 2022 05:23:43 +0000 (08:23 +0300)
committerKalle Valo <kvalo@kernel.org>
Fri, 2 Sep 2022 08:44:35 +0000 (11:44 +0300)
commitf97c81f5b7f8047810b0d79a8f759a83951210a0
treeaefb4efa9835758405f862d0053a69007921d7c5tree
parent620d5eaeb9059636864bda83ca1c68c20ede34a5commit | diff
wifi: wfx: prevent underflow in wfx_send_pds()

This does a "chunk_len - 4" subtraction later when it calls:

ret = wfx_hif_configuration(wdev, buf + 4, chunk_len - 4);

so check for "chunk_len" is less than 4.

Fixes: dcbecb497908 ("staging: wfx: allow new PDS format")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Yv8eX7Xv2ubUOvW7@kili
drivers/net/wireless/silabs/wfx/main.c diff | blob | history
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