git: fff9ab9ed295 - stable/14 - LinuxKPI: 802.11: reset hdr after crypto in lkpi_80211_txq_tx_one()

The branch stable/14 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=fff9ab9ed295e7f584feba459a1f0a3f4a1b783e

commit fff9ab9ed295e7f584feba459a1f0a3f4a1b783e
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2025-12-28 17:15:23 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2026-01-16 19:37:55 +0000

    LinuxKPI: 802.11: reset hdr after crypto in lkpi_80211_txq_tx_one()
    
    When lkpi_80211_txq_tx_one() calls into the crypto offloading parts to
    possibly make space in the headroom, the beginning of our frame moves.
    We have to reset hdr after that call as otherwise later classifications
    based on the hdr->frame_control will fail or cause wrong classificaiton
    of packets.
    This makes sure frames will either be directly sent using (*mo_tx)()
    or use the correct tid for the correct queue.  This helps to get
    rtwx8 packets flowing after BA was negotiated.
    
    Sponsored by:   The FreeBSD Foundation
    Fixes:          11db70b6057e4
    
    (cherry picked from commit f0395993e1ea83705e0da6623843e7d5d03f7269)
    (cherry picked from commit 4d255abe992fef69c97ce10991d815eda638c76d)
---
 sys/compat/linuxkpi/common/src/linux_80211.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/compat/linuxkpi/common/src/linux_80211.c b/sys/compat/linuxkpi/common/src/linux_80211.c
index e82b1eecc0ac..cd7898ab16ca 100644
--- a/sys/compat/linuxkpi/common/src/linux_80211.c
+++ b/sys/compat/linuxkpi/common/src/linux_80211.c
@@ -5281,6 +5281,8 @@ lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m)
 			dev_kfree_skb(skb);
 			return;
 		}
+		/* Reset header as data might have moved. */
+		hdr = (void *)skb->data;
 	}
 #endif