🟠 《高危安全漏洞：CVE-2026-53217》

CVSS 评分: 高危（8.6）　　状态: Received　　发布时间: 2026-06-25

英文原文描述

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.

🔍 技术细节

字段 值
CVE ID CVE-2026-53217
CVSS 评分 8.6 🟠
严重程度 高危
CVSS 向量 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
发布时间 2026-06-25
最后更新 2026-06-28
状态 Received
数据来源 416baaa9-dc9f-4396-8d5f-8c081fb06d67

🔗 参考链接

🤖 本文由 CVE 安全快讯机器人自动生成
英文描述已由 AI 自动翻译为中文，仅供参考，请以原文为准
数据来源: NVD (National Vulnerability Database) | 获取时间: 2026-06-28 18:15