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authorJakub Kicinski <kuba@kernel.org>2023-04-21 02:27:33 +0300
committerJakub Kicinski <kuba@kernel.org>2023-04-21 02:29:51 +0300
commit681c5b51dc6b8ff1ec05555243eccf64a08cb2fd (patch)
tree713e0523bc617cbda9ff930568dd2341907b87b8 /drivers/net/virtio_net.c
parente315e7b83a22043bffee450437d7089ef373cbf6 (diff)
parent0f2a4af27b649c13ba76431552fe49c60120d0f6 (diff)
downloadlinux-681c5b51dc6b8ff1ec05555243eccf64a08cb2fd.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Adjacent changes: net/mptcp/protocol.h 63740448a32e ("mptcp: fix accept vs worker race") 2a6a870e44dd ("mptcp: stops worker on unaccepted sockets at listener close") ddb1a072f858 ("mptcp: move first subflow allocation at mpc access time") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index e2560b6f7980..8d8038538fc4 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -815,8 +815,13 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
int page_off,
unsigned int *len)
{
- struct page *page = alloc_page(GFP_ATOMIC);
+ int tailroom = SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+ struct page *page;
+
+ if (page_off + *len + tailroom > PAGE_SIZE)
+ return NULL;
+ page = alloc_page(GFP_ATOMIC);
if (!page)
return NULL;
@@ -824,7 +829,6 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
page_off += *len;
while (--*num_buf) {
- int tailroom = SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
unsigned int buflen;
void *buf;
int off;