The "delba" variable is a pointer to struct rtl_80211_hdr_3addr so this
addition here means we read nonsense data from beyond the end of the
buffer. It could result in an oops if the memory is not mapped.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index 9ff8e05..c1c1a1e 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -592,7 +592,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device *ieee,
struct sk_buff *skb)
IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data,
skb->len);
delba = (struct rtl_80211_hdr_3addr *)skb->data;
dst = (u8 *)(&delba->addr2[0]);
- delba += sizeof(struct rtl_80211_hdr_3addr);
+ delba++;
pDelBaParamSet = (PDELBA_PARAM_SET)(delba+2);
pReasonCode = (u16 *)(delba+4);
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