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OpenCloudOS-Kernel
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staging: r8188eu: fix the index check in mgt_dispatcher 

In mgt_dispatcher, we check that index is a valid index for the
mlme_sta_tbl array. The valid indices for this array are from 0 to
ARRAY_SIZE(mlme_sta_tbl) - 1.

An invalid index is >= ARRAY_SIZE(mlme_sta_tbl). Fix the off by one error
in the check.

Fixes: db84803cd8 ("staging: r8188eu: use ARRAY_SIZE for mlme_sta_tbl")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220422140958.239767-1-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2022-04-22 16:09:58 +02:00 committed by Greg Kroah-Hartman
parent e36c9c0018
commit a2b5fd2981
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/r8188eu/core/rtw_mlme_ext.c
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@ -398,7 +398,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
return;
index = (le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
if (index > ARRAY_SIZE(mlme_sta_tbl))
if (index >= ARRAY_SIZE(mlme_sta_tbl))
return;
fct = mlme_sta_tbl[index];