Messages in this thread | | | From | Varun Prakash <> | Subject | RE: [PATCH] cxgbit: check skb dequeue result in cxgbit_send_tx_flowc_wr() | Date | Mon, 10 Apr 2023 11:49:29 +0000 |
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>Skb dequeuing may end up with returning NULL if a queue is empty, >which, in turn, may end up with further null pointer dereference. > >Fix it by checking the return value of skb dequeuing end returning >before the pointer dereference.
skbs in csk->skbq are preallocated for critical events in cxgbit_alloc_csk_skb(), so there is no need to check for NULL.
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