Vulnerability-Lookup

GHSA-VJ9R-56J4-WWMH

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-28 09:31

Details

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.

Severity

8.6 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53217"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:39Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mvpp2: sync RX data at the hardware packet offset\n\nmvpp2 programs the RX queue packet offset, so hardware writes received\ndata at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at\ndma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the\nunused headroom and misses the same number of bytes at the packet tail.\n\nOn non-coherent DMA systems this can leave the CPU reading stale cache\ncontents for the end of the received frame.\n\nUse dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range\noffset so the sync covers the Marvell header and packet data actually\nwritten by hardware.",
  "id": "GHSA-vj9r-56j4-wwmh",
  "modified": "2026-06-28T09:31:45Z",
  "published": "2026-06-25T09:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53217"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53217 (GCVE-0-2026-53217)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-28 06:40

Title

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

Summary

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.

Severity

8.6 (High)


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

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/60412bdd1b2576659…
https://git.kernel.org/stable/c/19f8bc139e9b149d1…
https://git.kernel.org/stable/c/a3ad9b5767c89531f…
https://git.kernel.org/stable/c/bede0f481b9137d73…
https://git.kernel.org/stable/c/23548007b3c66d628…
https://git.kernel.org/stable/c/a13199fa224e9f776…
https://git.kernel.org/stable/c/e302206ad84a407a7…
https://git.kernel.org/stable/c/180235600934bef6a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < 60412bdd1b2576659eac23a23d2d9ff96228a643 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < 19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < a3ad9b5767c89531fc7dae951b51b0933dcf7051 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < bede0f481b9137d73d1cf64309cbe4b94818a5d6 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < 23548007b3c66d628fc7d6b80d1e23be04ea10d9 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < a13199fa224e9f776f4005d5037df03aa9ea8f37 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < e302206ad84a407a7e5f3f6fe767ff5efaace689 (git) Affected: e1921168bbd4810de4197446e52f652cd0dd9541 , < 180235600934bef6add3be637c296d6cf3272e67 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
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          "programFiles": [
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              "status": "unaffected",
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
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              "lessThanOrEqual": "6.12.*",
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              "versionType": "semver"
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              "lessThanOrEqual": "6.18.*",
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              "versionType": "semver"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mvpp2: sync RX data at the hardware packet offset\n\nmvpp2 programs the RX queue packet offset, so hardware writes received\ndata at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at\ndma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the\nunused headroom and misses the same number of bytes at the packet tail.\n\nOn non-coherent DMA systems this can leave the CPU reading stale cache\ncontents for the end of the received frame.\n\nUse dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range\noffset so the sync covers the Marvell header and packet data actually\nwritten by hardware."
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        {
          "url": "https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67"
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      "title": "net: mvpp2: sync RX data at the hardware packet offset",
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    "datePublished": "2026-06-25T08:39:20.186Z",
    "dateReserved": "2026-06-09T07:44:35.392Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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GHSA-VJ9R-56J4-WWMH

CVE-2026-53217 (GCVE-0-2026-53217)

Tags

Sightings

Nomenclature