In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]xsk: Fix corrupted packets for XDP_SHARED_UMEM[EOL][EOL]Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where[EOL]packets are corrupted for the second and any further sockets bound to[EOL]the same umem. In other words, this does not affect the first socket[EOL]bound to the umem. The culprit for this bug is that the initialization[EOL]of the DMA addresses for the pre-populated xsk buffer pool entries was[EOL]not performed for any socket but the first one bound to the umem. Only[EOL]the linear array of DMA addresses was populated. Fix this by populating[EOL]the DMA addresses in the xsk buffer pool for every socket bound to the[EOL]same umem. CREATE(Triage):(User=lchen-cn) [CVE-2022-49972 (https://nvd.nist.gov/vuln/detail/CVE-2022-49972)
