CVE-2026-53217

In the Linux kernel, the following vulnerability has been resolved:

net: mvpp2: sync RX data at the hardware packet offset

mvpp2 programs the RX queue packet offset, so hardware writes received data at dmaaddr + MVPP2SKBHEADROOM. The current CPU sync starts at dmaaddr and only covers rxbytes + MVPP2MH_SIZE bytes, which syncs the unused headroom and misses the same number of bytes at the packet tail.

On non-coherent DMA systems this can leave the CPU reading stale cache contents for the end of the received frame.

Use dmasyncsinglerangeforcpu() with MVPP2SKB_HEADROOM as the range offset so the sync covers the Marvell header and packet data actually written by hardware.