{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-39698",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-39698"
  ],
  "published": "2025-09-05T17:22:05Z",
  "summary": "io_uring/futex: ensure io_futex_wait() cleans up properly on failure",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/futex: ensure io_futex_wait() cleans up properly on failure\n\nThe io_futex_data is allocated upfront and assigned to the io_kiocb\nasync_data field, but the request isn't marked with REQ_F_ASYNC_DATA\nat that point. Those two should always go together, as the flag tells\nio_uring whether the field is valid or not.\n\nAdditionally, on failure cleanup, the futex handler frees the data but\ndoes not clear ->async_data. Clear the data and the flag in the error\npath as well.\n\nThanks to Trend Micro Zero Day Initiative and particularly ReDress for\nreporting this.",
  "affected": [
    {
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
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        "1:6.12.25-1+rpt1",
        "1:6.12.34-1+rpt1~bookworm"
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          },
          {
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          },
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          },
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            "binary_version": "1:6.12.25-1+rpt1"
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      "database_specific": {
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            "assessment": "commit ancestry (strak rule)",
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            "assessment": "commit ancestry (strak rule)",
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            "upstream_version": "6.12.34",
            "assessment": "commit ancestry (strak rule)",
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    },
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        "name": "linux"
      },
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        "1:6.12.19-1+rpt1",
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        "1:6.12.34-1+rpt1"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-39698"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d9f93172820a53ab42c4b0e5e65291f4f9d00ad2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d34c04152df517c59979b4bf2a47f491e06d3256"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/508c1314b342b78591f51c4b5dadee31a88335df"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}