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ap: verify ATTR_MAC exists in NEW_STATION

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Caught by static analysis, if ATTR_MAC was not in the message there
would be a memcpy with uninitialized bytes. In addition there is no
reason to memcpy twice. Instead 'mac' can be a const pointer which
both verifies it exists and removes the need for a second memcpy.
This commit is contained in:
James Prestwood 2024-02-29 10:12:16 -08:00 committed by Denis Kenzior
parent 3a17c8e3c5
commit 5fcfb430b2
1 changed files with 3 additions and 3 deletions
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6
src/ap.c
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@ -2963,7 +2963,7 @@ static void ap_handle_new_station(struct ap_state *ap, struct l_genl_msg *msg)
uint16_t type;
uint16_t len;
const void *data;
uint8_t mac[6];
const uint8_t *mac = NULL;
uint8_t *assoc_rsne = NULL;
if (!l_genl_attr_init(&attr, msg))
@ -2983,12 +2983,12 @@ static void ap_handle_new_station(struct ap_state *ap, struct l_genl_msg *msg)
if (len != 6)
goto cleanup;
memcpy(mac, data, 6);
mac = data;
break;
}
}
if (!assoc_rsne)
if (!assoc_rsne || !mac)
goto cleanup;
/*