Vulnerability-Lookup

GHSA-WJMG-69JJ-9P9G

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-23 15:33

Details

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK

The DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA channels, and modifying them requires a read-modify-write sequence. Because this operation is not atomic, concurrent calls to dw_edma_v0_core_start() can introduce race conditions if two channels update these registers simultaneously.

Add a spinlock to serialize access to these registers and prevent race conditions.

[den: update dw_edma.lock comment]

Severity

8.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72148"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:32Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK\n\nThe DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA\nchannels, and modifying them requires a read-modify-write sequence.\nBecause this operation is not atomic, concurrent calls to\ndw_edma_v0_core_start() can introduce race conditions if two channels\nupdate these registers simultaneously.\n\nAdd a spinlock to serialize access to these registers and prevent race\nconditions.\n\n[den: update dw_edma.lock comment]",
  "id": "GHSA-wjmg-69jj-9p9g",
  "modified": "2026-08-23T15:33:00Z",
  "published": "2026-08-15T06:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72148"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1553ca96e9df158d8f37137cf4bf5fb0dc981d94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ee0f478bb29b4ee892b178179a9a76ddd194149"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ffba0171c6bbce5f093c6dba5a02c0805b31203"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f60c7463d44fbc1585d247d0bd6976f7a1099472"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72148 (GCVE-0-2026-72148)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-23 12:46

Title

dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK The DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA channels, and modifying them requires a read-modify-write sequence. Because this operation is not atomic, concurrent calls to dw_edma_v0_core_start() can introduce race conditions if two channels update these registers simultaneously. Add a spinlock to serialize access to these registers and prevent race conditions. [den: update dw_edma.lock comment]

Severity

8.8 (High)


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

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7067 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/3989b4775bc2cdbdb…
https://git.kernel.org/stable/c/f60c7463d44fbc158…
https://git.kernel.org/stable/c/2247cc25a91fb1b5b…
https://git.kernel.org/stable/c/3ee0f478bb29b4ee8…
https://git.kernel.org/stable/c/21a9834f56d6249aa…
https://git.kernel.org/stable/c/ddbc4a8a4fe296f1f…
https://git.kernel.org/stable/c/1553ca96e9df158d8…
https://git.kernel.org/stable/c/8ffba0171c6bbce5f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < f60c7463d44fbc1585d247d0bd6976f7a1099472 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 2247cc25a91fb1b5b86586ed55fdd5b725a7477c (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 3ee0f478bb29b4ee892b178179a9a76ddd194149 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 1553ca96e9df158d8f37137cf4bf5fb0dc981d94 (git) Affected: 7e4b8a4fbe2cecab0959e862604803d063f50029 , < 8ffba0171c6bbce5f093c6dba5a02c0805b31203 (git)
Linux	Linux	Affected: 5.3 Unaffected: 0 , < 5.3 (semver) Unaffected: 5.10.266 , ≤ 5.10.* (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/dw-edma/dw-edma-core.h",
            "drivers/dma/dw-edma/dw-edma-v0-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2",
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              "versionType": "git"
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            },
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              "version": "7e4b8a4fbe2cecab0959e862604803d063f50029",
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            },
            {
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              "status": "affected",
              "version": "7e4b8a4fbe2cecab0959e862604803d063f50029",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "status": "affected",
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              "versionType": "git"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.266",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.266",
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                },
                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.3",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.3",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK\n\nThe DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA\nchannels, and modifying them requires a read-modify-write sequence.\nBecause this operation is not atomic, concurrent calls to\ndw_edma_v0_core_start() can introduce race conditions if two channels\nupdate these registers simultaneously.\n\nAdd a spinlock to serialize access to these registers and prevent race\nconditions.\n\n[den: update dw_edma.lock comment]"
        }
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            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
            "version": "3.1"
          },
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            {
              "lang": "en",
              "value": "AV:A - On PCIe endpoint SoCs (R-Car Gen4, DWC EP) the dw-edma v0 engine is driven when a physically connected PCIe root host initiates endpoint DMA (e.g. pci-epf-mhi); that host peer needs no network path to the victim, fitting Adjacent attack vector.\nAC:L - The race needs only two eDMA channels starting their first chunk concurrently; an attacker controls both sides by issuing parallel DMA requests or timing concurrent completions, with no luck-dependent layout or rare config.\nPR:N - In the highest-impact PCIe EP deployment a malicious or compromised upstream host triggers concurrent endpoint DMA through BAR/MHI traffic without any local Linux credentials, shell, or CAP_* on the vulnerable endpoint system.\nUI:N - Exploitation is fully automated once the attacker can submit concurrent DMA operations; no victim user action such as mounting filesystems or opening files is required.\nS:C - Corrupted shared DONE/ABORT masks and linked-list error enables on an endpoint can disrupt PCIe DMA to/from upstream host memory, impacting resources outside the endpoint kernel security authority across the PCIe boundary.\nC:L - Lost interrupt unmasking can leave host-visible DMA buffers partially updated or stall reads, enabling limited cross-boundary disclosure of in-flight or stale data rather than arbitrary kernel memory read primitives.\nI:L - Register corruption can disable linked-list error detection and desynchronize DMA completion handling, causing limited unintended modification of host or device DMA buffers even though addresses are normally driver-controlled.\nA:H - A lost DONE/ABORT unmask leaves channels permanently BUSY with completions never delivered, wedging dmaengine clients and endpoint services until reboot, constituting a severe availability failure."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T12:46:52.752Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2"
        },
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          "url": "https://git.kernel.org/stable/c/f60c7463d44fbc1585d247d0bd6976f7a1099472"
        },
        {
          "url": "https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c"
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        {
          "url": "https://git.kernel.org/stable/c/3ee0f478bb29b4ee892b178179a9a76ddd194149"
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          "url": "https://git.kernel.org/stable/c/21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1"
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          "url": "https://git.kernel.org/stable/c/ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640"
        },
        {
          "url": "https://git.kernel.org/stable/c/1553ca96e9df158d8f37137cf4bf5fb0dc981d94"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ffba0171c6bbce5f093c6dba5a02c0805b31203"
        }
      ],
      "title": "dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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    "datePublished": "2026-08-15T05:53:19.921Z",
    "dateReserved": "2026-08-09T03:40:39.908Z",
    "dateUpdated": "2026-08-23T12:46:52.752Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

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