CVE-2026-98778

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.17 %higher than 6% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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binder: fix is_failure flag for superseded transaction cleanup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 Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process.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.

Read full descriptionShow less

Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.17 %
Percentile among all scored CVEs: 6
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Show 4 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98778",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "lessThan": "60a9f7323ae7318a7cce0d387c318da24f1e8726",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "lessThan": "86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "lessThan": "1ab671b50714ad8e359cf37eb041d8044319ccdc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9864bb4801331daa48514face9d0f4861e4d485b",
              "lessThan": "22c135635fdd9816c0ef140d6de7b2e4fdf73e89",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:31.757",
  "references": [
    {
      "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"
    }
  ],
  "vulnStatus": "Received",
  "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."
    }
  ],
  "lastModified": "2026-10-19T10:19:41.907",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}