FKIE_CVE-2026-98778

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-30 13:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process. With is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets stale buffer contents as installed fd numbers and passes them to binder_deferred_fd_close(), closing unrelated file descriptors. Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ab671b50714ad8e359cf37eb041d8044319ccdc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22c135635fdd9816c0ef140d6de7b2e4fdf73e89
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60a9f7323ae7318a7cce0d387c318da24f1e8726
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e9b364e46d594c2ec663c9c49f10c1ca541ecc0f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4c072e544b8c15e6b9157208761db6fa4fe95a1
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f4c072e544b8c15e6b9157208761db6fa4fe95a1",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            },
            {
              "lessThan": "e9b364e46d594c2ec663c9c49f10c1ca541ecc0f",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            },
            {
              "lessThan": "60a9f7323ae7318a7cce0d387c318da24f1e8726",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            },
            {
              "lessThan": "86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            },
            {
              "lessThan": "1ab671b50714ad8e359cf37eb041d8044319ccdc",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            },
            {
              "lessThan": "22c135635fdd9816c0ef140d6de7b2e4fdf73e89",
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "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\nbinder: fix is_failure flag for superseded transaction cleanup\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction,\nbinder_release_entire_buffer() is called with is_failure=false. Since the\nsuperseded transaction was never delivered, binder_apply_fd_fixups() was\nnever called and no fds were installed in the target process.\n\nWith is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets\nstale buffer contents as installed fd numbers and passes them to\nbinder_deferred_fd_close(), closing unrelated file descriptors.\n\nPass is_failure=true since the transaction was never delivered to the\ntarget, matching the semantics of all other undelivered-transaction\ncleanup paths."
    }
  ],
  "id": "CVE-2026-98778",
  "lastModified": "2026-10-30T13:21:27.397",
  "metrics": {},
  "published": "2026-10-18T16:17:31.757",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ab671b50714ad8e359cf37eb041d8044319ccdc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/22c135635fdd9816c0ef140d6de7b2e4fdf73e89"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60a9f7323ae7318a7cce0d387c318da24f1e8726"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e9b364e46d594c2ec663c9c49f10c1ca541ecc0f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f4c072e544b8c15e6b9157208761db6fa4fe95a1"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.