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| author | Felix Fietkau <nbd@nbd.name> | 2024-08-19 17:06:21 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-21 17:15:05 -0700 |
| commit | b128ed5ab27330deeeaf51ea8bb69f1442a96f7f (patch) | |
| tree | d08ddf256463abadbaaa5b58e2de84d42f544dab /net | |
| parent | 0d76fc7e27b2097e18ee128e484d107ed6d45e88 (diff) | |
| download | linux-b128ed5ab27330deeeaf51ea8bb69f1442a96f7f.tar.gz linux-b128ed5ab27330deeeaf51ea8bb69f1442a96f7f.tar.bz2 linux-b128ed5ab27330deeeaf51ea8bb69f1442a96f7f.zip | |
udp: fix receiving fraglist GSO packets
When assembling fraglist GSO packets, udp4_gro_complete does not set
skb->csum_start, which makes the extra validation in __udp_gso_segment fail.
Fixes: 89add40066f9 ("net: drop bad gso csum_start and offset in virtio_net_hdr")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240819150621.59833-1-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/udp_offload.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index b254a5dadfcf..d842303587af 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -279,7 +279,8 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb, return ERR_PTR(-EINVAL); if (unlikely(skb_checksum_start(gso_skb) != - skb_transport_header(gso_skb))) + skb_transport_header(gso_skb) && + !(skb_shinfo(gso_skb)->gso_type & SKB_GSO_FRAGLIST))) return ERR_PTR(-EINVAL); /* We don't know if egress device can segment and checksum the packet |