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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-23 12:46
VLAI
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
References
Impacted products
Vendor Product Version CPE status
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)
guessed Create a notification for this product.
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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              "versionType": "original_commit_for_fix"
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              "negate": false,
              "operator": "OR"
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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]"
        }
      ],
      "metrics": [
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            "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"
          },
          "scenarios": [
            {
              "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."
            }
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        "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"
        },
        {
          "url": "https://git.kernel.org/stable/c/f60c7463d44fbc1585d247d0bd6976f7a1099472"
        },
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          "url": "https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c"
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      ],
      "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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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72148",
    "datePublished": "2026-08-15T05:53:19.921Z",
    "dateReserved": "2026-08-09T03:40:39.908Z",
    "dateUpdated": "2026-08-23T12:46:52.752Z",
    "state": "PUBLISHED"
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      "date": "2026-09-05",
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comment]\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"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\",\"versions\":[{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"f60c7463d44fbc1585d247d0bd6976f7a1099472\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"2247cc25a91fb1b5b86586ed55fdd5b725a7477c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"3ee0f478bb29b4ee892b178179a9a76ddd194149\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"1553ca96e9df158d8f37137cf4bf5fb0dc981d94\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e4b8a4fbe2cecab0959e862604803d063f50029\",\"lessThan\":\"8ffba0171c6bbce5f093c6dba5a02c0805b31203\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"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\",\"versions\":[{\"version\":\"5.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.266\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.217\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.97\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.40\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.3}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1553ca96e9df158d8f37137cf4bf5fb0dc981d94\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3ee0f478bb29b4ee892b178179a9a76ddd194149\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ffba0171c6bbce5f093c6dba5a02c0805b31203\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f60c7463d44fbc1585d247d0bd6976f7a1099472\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-18T13:34:31+00:00",
      "cve": "CVE-2026-72148",
      "id": "CVE-2026-72148",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72148.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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