PT-2026-52312 · Linux · Linux

Publicado 2026-06-25 · Atualizado 2026-06-25 · CVE-2026-53217

Mitre

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.

Identificadores relacionados

CVE-2026-53217

Produtos afetados

Linux

Referências · 9

• https://git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37 · Nota
• https://git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643 · Nota
• https://git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051 · Nota
• https://git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8 · Nota
• https://git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689 · Nota
• https://git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6 · Nota
• https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67 · Nota
• https://git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-53217 · Nota de Segurança