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          "product": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "affected",
              "version": "eafedbc7c050c44744fbdf80bdf3315e860b7513",
              "versionType": "git"
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              "status": "affected",
              "version": "eafedbc7c050c44744fbdf80bdf3315e860b7513",
              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
            "drivers/android/binder/thread.rs"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
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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\nrust_binder: correctly handle FDA objects of length zero\n\nFix a bug where an empty FDA (fd array) object with 0 fds would cause an\nout-of-bounds error. The previous implementation used `skip == 0` to\nmean \"this is a pointer fixup\", but 0 is also the correct skip length\nfor an empty FDA. If the FDA is at the end of the buffer, then this\nresults in an attempt to write 8-bytes out of bounds. This is caught and\nresults in an EINVAL error being returned to userspace.\n\nThe pattern of using `skip == 0` as a special value originates from the\nC-implementation of Binder. As part of fixing this bug, this pattern is\nreplaced with a Rust enum.\n\nI considered the alternate option of not pushing a fixup when the length\nis zero, but I think it\u0027s cleaner to just get rid of the zero-is-special\nstuff.\n\nThe root cause of this bug was diagnosed by Gemini CLI on first try. I\nused the following prompt:\n\n\u003e There appears to be a bug in @drivers/android/binder/thread.rs where\n\u003e the Fixups oob bug is triggered with 316 304 316 324. This implies\n\u003e that we somehow ended up with a fixup where buffer A has a pointer to\n\u003e buffer B, but the pointer is located at an index in buffer A that is\n\u003e out of bounds. Please investigate the code to find the bug. You may\n\u003e compare with @drivers/android/binder.c that implements this correctly."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-14T16:27:20.944Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/598fe3ff32e43918ed8a062f55432b3d23e6340c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f589c9c3be539d6c2b393c82940c3783831082f"
        }
      ],
      "title": "rust_binder: correctly handle FDA objects of length zero",
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23194",
    "datePublished": "2026-02-14T16:27:20.944Z",
    "dateReserved": "2026-01-13T15:37:45.985Z",
    "dateUpdated": "2026-02-14T16:27:20.944Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23194\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-14T17:15:57.233\",\"lastModified\":\"2026-02-14T17:15:57.233\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrust_binder: correctly handle FDA objects of length zero\\n\\nFix a bug where an empty FDA (fd array) object with 0 fds would cause an\\nout-of-bounds error. The previous implementation used `skip == 0` to\\nmean \\\"this is a pointer fixup\\\", but 0 is also the correct skip length\\nfor an empty FDA. If the FDA is at the end of the buffer, then this\\nresults in an attempt to write 8-bytes out of bounds. This is caught and\\nresults in an EINVAL error being returned to userspace.\\n\\nThe pattern of using `skip == 0` as a special value originates from the\\nC-implementation of Binder. As part of fixing this bug, this pattern is\\nreplaced with a Rust enum.\\n\\nI considered the alternate option of not pushing a fixup when the length\\nis zero, but I think it\u0027s cleaner to just get rid of the zero-is-special\\nstuff.\\n\\nThe root cause of this bug was diagnosed by Gemini CLI on first try. I\\nused the following prompt:\\n\\n\u003e There appears to be a bug in @drivers/android/binder/thread.rs where\\n\u003e the Fixups oob bug is triggered with 316 304 316 324. This implies\\n\u003e that we somehow ended up with a fixup where buffer A has a pointer to\\n\u003e buffer B, but the pointer is located at an index in buffer A that is\\n\u003e out of bounds. Please investigate the code to find the bug. You may\\n\u003e compare with @drivers/android/binder.c that implements this correctly.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/598fe3ff32e43918ed8a062f55432b3d23e6340c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f589c9c3be539d6c2b393c82940c3783831082f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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