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Vulnerability record · CVE-2026-53217 · published 25 June 2026

CVE-2026-53217: Linux kernel vulnerability

Linux · Linux Kernel

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.

8.6 CVSS 3.1 High EPSS 0.38% · top 70.1%
8.6CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
2 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67 Patch
https://git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8 Patch
https://git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9 Patch
https://git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643 Patch
https://git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37 Patch
https://git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051 Patch
https://git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6 Patch
https://git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-53217), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.