virtio_net: fix memory leak inside XPD_TX with mergeable

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commit 7a542bee27 upstream.

When we call xdp_convert_buff_to_frame() to get xdpf, if it returns
NULL, we should check if xdp_page was allocated by xdp_linearize_page().
If it is newly allocated, it should be freed here alone. Just like any
other "goto err_xdp".

Fixes: 44fa2dbd47 ("xdp: transition into using xdp_frame for ndo_xdp_xmit")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Xuan Zhuo 2022-08-04 14:32:48 +08:00 • committed by Greg Kroah-Hartman

parent 3718ea0439

commit 18e383afbd

1 changed files with 4 additions and 1 deletions

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drivers/net/virtio_net.c

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