K 10
svn:author
V 2
cy
K 8
svn:date
V 27
2023-04-09T03:55:47.195300Z
K 7
svn:log
V 798
wpa_supplicant/hostapd: Fix uninitialized packet pointer on error

The packet pointer (called packet) will remain uninitialized when
pcap_next_ex() returns an error. This occurs when the wlan
interface is shut down using ifconfig destroy. Adding a NULL
assignment to packet duplicates what pcap_next() does.

The reason we use pcap_next_ex() in this instance is because with
pacp_next() when we receive a null pointer if there was an error
or if no packets were read. With pcap_next_ex() we can differentiate
between an error and legitimately no packets were received.

PR:		270649
Reported by:	Robert Morris <rtm@lcs.mit.edu>
Fixes:		6e5d01124fd4

(cherry picked from commit 953efa5b200f060564a090ab71b3d7f614a35e3f)

Git Hash:   4a99b854723bb28817b01eb7bf485a072a02ae5a
Git Author: cy@FreeBSD.org
END