CVE-2022-49452 dpaa2-eth: retrieve the virtual address before dma_unmap

In the Linux kernel, the following vulnerability has been resolved: dpaa2-eth: retrieve the virtual address before dmaunmap The TSO header was DMA unmapped before the virtual address was retrieved and then used to free the buffer. This meant that we were actually removing the DMA map and then...

CVE-2022-49452

In the Linux kernel, the following vulnerability has been resolved: dpaa2-eth: retrieve the virtual address before dmaunmap The TSO header was DMA unmapped before the virtual address was retrieved and then used to free the buffer. This meant that we were actually removing the DMA map and then...

CVE-2022-49452

The CVE-2022-49452 issue concerns the Linux kernel DPAA2 Ethernet driver (dpaa2-eth). The vulnerability arises when the virtual address is retrieved after DMA unmapped in TSO path, leading to an invalid address being used in kfree. A fix was implemented to call dpaa2_iova_to_virt() before the dma...