git: 71383e75eae9 - stable/13 - net80211: ieee80211_dump_node() check for channel to be set

From: Bjoern A. Zeeb <bz_at_FreeBSD.org>
Date: Mon, 19 Feb 2024 08:07:42 UTC
The branch stable/13 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=71383e75eae9fa481f725afc8c1e625e7571940a

commit 71383e75eae9fa481f725afc8c1e625e7571940a
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2023-11-30 18:20:22 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2024-02-19 08:01:59 +0000

    net80211: ieee80211_dump_node() check for channel to be set
    
    Avoid panics in case ieee80211_dump_node() gets called before a
    channel context is set.
    
    Sponsored by:   The FreeBSD Foundation
    
    (cherry picked from commit c93be3079be5f07fe3596ec389826e45f5dc82bd)
---
 sys/net80211/ieee80211_node.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/net80211/ieee80211_node.c b/sys/net80211/ieee80211_node.c
index a70edfa3acc4..75795342f4b4 100644
--- a/sys/net80211/ieee80211_node.c
+++ b/sys/net80211/ieee80211_node.c
@@ -2669,7 +2669,8 @@ ieee80211_dump_node(struct ieee80211_node_table *nt __unused,
 	printf("\tbssid %s essid \"%.*s\" channel %u:0x%x\n",
 		ether_sprintf(ni->ni_bssid),
 		ni->ni_esslen, ni->ni_essid,
-		ni->ni_chan->ic_freq, ni->ni_chan->ic_flags);
+		(ni->ni_chan != IEEE80211_CHAN_ANYC) ? ni->ni_chan->ic_freq : 0,
+		(ni->ni_chan != IEEE80211_CHAN_ANYC) ? ni->ni_chan->ic_flags : 0);
 	printf("\tinact %u inact_reload %u txrate %u\n",
 		ni->ni_inact, ni->ni_inact_reload, ni->ni_txrate);
 	printf("\thtcap %x htparam %x htctlchan %u ht2ndchan %u\n",