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 dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at dma_addr and only covers rx_bytes + MVPP2_MH_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
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 dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at
dma_addr and only covers rx_bytes + MVPP2_MH_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 dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range
offset so the sync covers the Marvell header and packet data actually
written by hardware.
- 🔗 git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff9…
- 🔗 git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb…
- 🔗 git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b093…
- 🔗 git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b9…
- 🔗 git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be…
- 🔗 git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03a…
- 🔗 git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5e…
- 🔗 git.kernel.org/stable/c/180235600934bef6add3be637c296d6c…
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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 dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at dma_addr and only covers rx_bytes + MVPP2_MH_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
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 dma_addr + MVPP2_SKB_HEADROOM. The c