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4309a6fbf8
To handle out-of-order received CRYPTO frames, a ncbuf instance is allocated. This is done via the helper quic_get_ncbuf(). Buffer allocation was improperly checked. In case b_alloc() fails, it crashes due to a BUG_ON(). Fix this by removing it. The function now returns NULL on allocation failure, which is already properly handled in its caller qc_handle_crypto_frm(). This should fix the last reported crash from github issue #2935. This must be backported up to 2.6.