Re: [PATCH bpf v4 1/2] bpf, sockmap: fix potential memory leak on unlikely error case
From: Cong Wang <hidden>
Date: 2021-07-14 00:35:25
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netdev
On Mon, Jul 12, 2021 at 12:56 PM John Fastabend [off-list ref] wrote:
If skb_linearize is needed and fails we could leak a msg on the error
handling. To fix ensure we kfree the msg block before returning error.
Found during code review.
Fixes: 4363023d2668e ("bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>Reviewed-by: Cong Wang <redacted> Thanks for the update.