GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2026-80902

Vulnerability from fkie_nvd - Published: 2026-09-04 18:17 - Updated: 2026-09-04 18:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA When terminating DMA transfers, active descriptors are not properly reclaimed. Only cyclic descriptors were handled, leaving non-cyclic descriptors and their LLI chains to be permanently leaked. Fix by using vchan_terminate_vdesc() which handles both cyclic and non-cyclic descriptors by adding them to desc_terminated queue for proper cleanup. Add pchan->desc != pchan->done check to prevent double-adding completed descriptors, which would corrupt the list.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/sun6i-dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bb87440561eb72b47a2b848b5373b86433b247e6",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "004a7a02982bed0a727a4ac7be400f00f353e7a2",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "b150f603083cc8b72b0cbf13ec3e91f85b4390a0",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "27806fe7b9701af0963dcd510e30e7d0cc314c43",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "1ccc5c059d067c5358682ad5352e7d7e9239ed9b",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "9086b488f2737d5dcee86852b83f2059f1cdfabf",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            },
            {
              "lessThan": "ab1150115e68a46b687eb38c1ab92782018c9f2c",
              "status": "affected",
              "version": "555859308723d8d5b828304f5eb9281143fd86b5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/sun6i-dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA\n\nWhen terminating DMA transfers, active descriptors are not properly\nreclaimed. Only cyclic descriptors were handled, leaving non-cyclic\ndescriptors and their LLI chains to be permanently leaked.\n\nFix by using vchan_terminate_vdesc() which handles both cyclic and\nnon-cyclic descriptors by adding them to desc_terminated queue for\nproper cleanup.\n\nAdd pchan-\u003edesc != pchan-\u003edone check to prevent double-adding completed\ndescriptors, which would corrupt the list."
    }
  ],
  "id": "CVE-2026-80902",
  "lastModified": "2026-09-04T18:17:59.260",
  "metrics": {},
  "published": "2026-09-04T18:17:59.260",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.

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.