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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , stable@vger.kernel.org, sashiko-bot@kernel.org Subject: [PATCH net 0/2 repost2] net/sched: sch_teql: fix shared headroom and header strip Date: Tue, 20 Oct 2026 06:38:25 -0400 Message-Id: X-Mailer: git-send-email 2.34.1 X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Two pre-existing defects on the teql transmit path, both around teql_master_xmit() -> teql_resolve(). The first makes the slave's headroom write corrupt a shared skb and strips a userspace-supplied link header on retry; the second leaves skb->dev pointing at the teql master while the skb is parked on a slave's neighbour arp_queue. Patch 1 fixes the shared-headroom write and the header-strip on retry, tracking the header length the slave actually added. Patch 2 moves skb->dev = slave ahead of teql_resolve() and restores skb->dev at the arp-queue reinjection point, so a parked skb names the device whose neighbour took it and is delivered with a link header. Both are follow-ups to commit dc4b95b8fee9 ("net/sched: sch_teql: restore skb->dev on the slave failure path"). This is a repost of the same two patches; there is no code change. The previous posting went out unthreaded (patch 2 was not a reply to patch 1), so this posting is sent as one threaded series: cover -> patch 1 -> patch 2. Changes since repost1: - re-threaded as a single series (no code change). Jamal Hadi Salim (2): net/sched: sch_teql: fix shared headroom and header strip on slave retry net/sched: sch_teql: keep skb->dev consistent on the arp-queue path net/core/neighbour.c | 1 + net/sched/sch_teql.c | 34 ++++++++++++++++++++++++++++------ 2 files changed, 29 insertions(+), 6 deletions(-) -- 2.43.0