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Extra validation to keep static analyzers happy

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Use of two variables to track bounds checking seems to be a bit too much
for some static analyzers, so add an extra condition for buffer padding
to avoid incorrect warnings.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-01-01 20:35:10 +02:00
parent de61795e7c
commit 5bfc46bb55
1 changed files with 1 additions and 1 deletions
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2
src/ap/wpa_auth_ft.c
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@ -416,7 +416,7 @@ static u8 * wpa_ft_gtk_subelem(struct wpa_state_machine *sm, size_t *len)
pad_len = 8 - pad_len; pad_len = 8 - pad_len;
if (key_len + pad_len < 16) if (key_len + pad_len < 16)
pad_len += 8; pad_len += 8;
if (pad_len) { if (pad_len && key_len < sizeof(keybuf)) {
os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len); os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len);
os_memset(keybuf + key_len, 0, pad_len); os_memset(keybuf + key_len, 0, pad_len);
keybuf[key_len] = 0xdd; keybuf[key_len] = 0xdd;