idpf: fix potential use-after-free in idpf_tso()

skb_cow_head() can change skb->head (and thus skb_shinfo(skb))

We must not cache skb_shinfo(skb) before skb_cow_head().

Fixes: 6818c4d5b3c2 ("idpf: add splitq start_xmit")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Joshua Hay <[email protected]>
Cc: Alan Brady <[email protected]>
Cc: Madhu Chittim <[email protected]>
Cc: Phani Burra <[email protected]>
Cc: Sridhar Samudrala <[email protected]>
Cc: Willem de Bruijn <[email protected]>
Cc: Pavan Kumar Linga <[email protected]>
Cc: Tony Nguyen <[email protected]>
Cc: Bailey Forrest <[email protected]>
Reviewed-by: Jacob Keller <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

0 files changed, 0 insertions, 0 deletions