Use After Free Vulnerability in TDLS Connection Setup in Android Releases from CAF

CVE-2018-5899 · MEDIUM Severity

AV:L/AC:L/AU:N/C:P/I:P/A:P

In Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-06-05, whenever TDLS connection is setup, we are freeing the netbuf in ol_tx_completion_handler and after that, we are accessing it in NBUF_UPDATE_TX_PKT_COUNT causing a use after free.

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