The branch main has been updated by bz:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=c67fd35e58c6ee1e19877a7fe5998885683abedc

commit c67fd35e58c6ee1e19877a7fe5998885683abedc
Author:     Bjoern A. Zeeb <[email protected]>
AuthorDate: 2025-11-29 00:51:36 +0000
Commit:     Bjoern A. Zeeb <[email protected]>
CommitDate: 2025-12-03 19:54:44 +0000

    mt76: ieee80211_is_first_frag() operates on the seq_ctrl field not on fc.
    
    Pass the correct field to ieee80211_is_first_frag(); otherwise the results
    may vary.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      3 days
    X-To-Upstream:  yes
---
 sys/contrib/dev/mediatek/mt76/mac80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/contrib/dev/mediatek/mt76/mac80211.c 
b/sys/contrib/dev/mediatek/mt76/mac80211.c
index 927d8519104f..d2ace8870451 100644
--- a/sys/contrib/dev/mediatek/mt76/mac80211.c
+++ b/sys/contrib/dev/mediatek/mt76/mac80211.c
@@ -1340,7 +1340,7 @@ mt76_check_ccmp_pn(struct sk_buff *skb)
                 * All further fragments will be validated by mac80211 only.
                 */
                if (ieee80211_is_frag(hdr) &&
-                   !ieee80211_is_first_frag(hdr->frame_control))
+                   !ieee80211_is_first_frag(hdr->seq_ctrl))
                        return;
        }
 

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