{
  "cveId": "CVE-2026-68175",
  "url": "https://patchblox.com/security/cve/CVE-2026-68175",
  "summary": "CVE-2026-68175 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-68175, released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "tracing: Fix resource leak on mmiotrace trace_pipe close",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix resource leak on mmiotrace trace_pipe close  The mmiotrace tracer was added May 12th 2008. At that time, resources created in pipe_open() could not be freed because there was not pipe_close function pointer of the tracer. The pipe_close function pointer was added in December 7th, 2009, but the mmiotrace tracer was not updated.  mmio_pipe_open() allocates a header_iter and takes a pci_dev reference when trace_pipe is opened. mmio_close() frees them, but it was only wired to the tracer\u0027s .close callback.  tracing_release_pipe() invokes .pipe_close, not .close, when the trace_pipe file is released. As a result, closing trace_pipe with the mmiotrace tracer active leaked the header_iter allocation and left a stale pci_dev reference.  Set .pipe_close to mmio_close, matching how function_graph wires both callbacks to the same handler.  Note, if the trace_pipe is read to completion, it will clean up the resources, but if one were to run:    # head -n 1 /sys/kernel/tracing/trace_pipe  VERSION 20070824  Over and over again, it would trigger a massive leak.",
  "published": "2026-08-10T13:20:04Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00211,
  "epssPercentile": 0.11329,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68175",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.187-1",
      "fix": "DEBIAN-CVE-2026-68175",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68175",
      "released": "2026-08-11T16:03:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.101-1",
      "fix": "DEBIAN-CVE-2026-68175",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68175",
      "released": "2026-08-11T16:03:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.6-1",
      "fix": "DEBIAN-CVE-2026-68175",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68175",
      "released": "2026-08-11T16:03:09Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.101-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-68175",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68175",
      "released": "2026-08-11T16:03:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}