https://bugs.dpdk.org/show_bug.cgi?id=1440
Bug ID: 1440
Summary: use after free in af_xdp
Product: DPDK
Version: 24.03
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
static uint16_t
af_xdp_tx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
...
for (i = 0; i < nb_pkts; i++) {
mbuf = bufs[i];
if (mbuf->pool == umem->mb_pool) {
...
} else {
...
desc->addr = addr | offset;
rte_memcpy(pkt, rte_pktmbuf_mtod(mbuf, void *),
desc->len);
rte_pktmbuf_free(mbuf);
count++;
}
tx_bytes += mbuf->pkt_len; <<< use after free above
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