diff --git a/meta-arm-bsp/recipes-kernel/linux/files/fvp-base/0001-net-tighten-bad-gso-csum-offset-check-in-virtio_net_.patch b/meta-arm-bsp/recipes-kernel/linux/files/fvp-base/0001-net-tighten-bad-gso-csum-offset-check-in-virtio_net_.patch deleted file mode 100644 index 9985d579..00000000 --- a/meta-arm-bsp/recipes-kernel/linux/files/fvp-base/0001-net-tighten-bad-gso-csum-offset-check-in-virtio_net_.patch +++ /dev/null @@ -1,59 +0,0 @@ -From 6513eb3d3191574b58859ef2d6dc26c0277c6f81 Mon Sep 17 00:00:00 2001 -From: Willem de Bruijn -Date: Tue, 10 Sep 2024 17:35:35 -0400 -Subject: [PATCH] net: tighten bad gso csum offset check in virtio_net_hdr - -The referenced commit drops bad input, but has false positives. -Tighten the check to avoid these. - -The check detects illegal checksum offload requests, which produce -csum_start/csum_off beyond end of packet after segmentation. - -But it is based on two incorrect assumptions: - -1. virtio_net_hdr_to_skb with VIRTIO_NET_HDR_GSO_TCP[46] implies GSO. -True in callers that inject into the tx path, such as tap. -But false in callers that inject into rx, like virtio-net. -Here, the flags indicate GRO, and CHECKSUM_UNNECESSARY or -CHECKSUM_NONE without VIRTIO_NET_HDR_F_NEEDS_CSUM is normal. - -2. TSO requires checksum offload, i.e., ip_summed == CHECKSUM_PARTIAL. -False, as tcp[46]_gso_segment will fix up csum_start and offset for -all other ip_summed by calling __tcp_v4_send_check. - -Because of 2, we can limit the scope of the fix to virtio_net_hdr -that do try to set these fields, with a bogus value. - -Link: https://lore.kernel.org/netdev/20240909094527.GA3048202@port70.net/ -Fixes: 89add40066f9 ("net: drop bad gso csum_start and offset in virtio_net_hdr") -Signed-off-by: Willem de Bruijn -Acked-by: Jason Wang -Acked-by: Michael S. Tsirkin -Cc: stable@vger.kernel.org -Link: https://patch.msgid.link/20240910213553.839926-1-willemdebruijn.kernel@gmail.com -Signed-off-by: Jakub Kicinski - -Upstream-Status: Backport -Signed-off-by: Jon Mason - ---- - include/linux/virtio_net.h | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - -diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h -index 6c395a2600e8..276ca543ef44 100644 ---- a/include/linux/virtio_net.h -+++ b/include/linux/virtio_net.h -@@ -173,7 +173,8 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, - break; - case SKB_GSO_TCPV4: - case SKB_GSO_TCPV6: -- if (skb->csum_offset != offsetof(struct tcphdr, check)) -+ if (skb->ip_summed == CHECKSUM_PARTIAL && -+ skb->csum_offset != offsetof(struct tcphdr, check)) - return -EINVAL; - break; - } --- -2.39.2 - diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc b/meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc index ac7bcf7a..01803ba2 100644 --- a/meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc +++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc @@ -65,7 +65,6 @@ KMACHINE:fvp-base = "fvp" FILESEXTRAPATHS:prepend:fvp-base := "${ARMBSPFILESPATHS}:${ARMFILESPATHS}" SRC_URI:append:fvp-base = " \ file://0001-arm64-dts-fvp-Enable-virtio-rng-support.patch \ - file://0001-net-tighten-bad-gso-csum-offset-check-in-virtio_net_.patch \ file://tee.cfg \ ${@bb.utils.contains('MACHINE_FEATURES', 'ts-smm-gateway', \ 'file://no-strict-devmem.cfg', '' , d)} \