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staging/rtl8192u: Remove all strcpy() uses in favor of strscpy()

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strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors. The safe replacement is strscpy().

Signed-off-by: Len Baker <len.baker@gmx.com>
Link: https://lore.kernel.org/r/20210718113207.10045-1-len.baker@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Len Baker 2021-07-18 13:32:07 +02:00 committed by Greg Kroah-Hartman
parent 3c6675363d
commit 246f920cb7
1 changed files with 2 additions and 1 deletions
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drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
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@ -2226,7 +2226,8 @@ static void ieee80211_start_ibss_wq(struct work_struct *work)
mutex_lock(&ieee->wx_mutex);
if (ieee->current_network.ssid_len == 0) {
strcpy(ieee->current_network.ssid, IEEE80211_DEFAULT_TX_ESSID);
strscpy(ieee->current_network.ssid, IEEE80211_DEFAULT_TX_ESSID,
sizeof(ieee->current_network.ssid));
ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
ieee->ssid_set = 1;
}