FKIE_CVE-2026-53361

Vulnerability from fkie_nvd - Published: 2026-07-04 12:17 - Updated: 2026-07-04 12:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() unix_schedule_gc() `- if (!gc_in_progress) `- if (!gc_in_progress) |- gc_in_progress = true | `- queue_work() | unix_gc() <----------------/ | | |- gc_in_progress = true ... `- queue_work() | | `- gc_in_progress = false | | unix_gc() <---------------------------------------------' | ... /* gc_in_progress == false */ | `- gc_in_progress = false unix_peek_fpl() relies on gc_in_progress not to confuse GC by MSG_PEEK. Let's set gc_in_progress to true in unix_gc().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/unix/garbage.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "82c17e13d404f686e164590483fd6c1abaa675d0",
              "status": "affected",
              "version": "328840c93bd6a4871dd10908d01b41eab83eb8e2",
              "versionType": "git"
            },
            {
              "lessThan": "591f1ac217428a6d2b32a8ac14aac0fab44f155a",
              "status": "affected",
              "version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec",
              "versionType": "git"
            },
            {
              "lessThan": "0cfa78c050662784fc8e3ab26dbfd1dc632b2082",
              "status": "affected",
              "version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec",
              "versionType": "git"
            },
            {
              "lessThan": "d82ba05263c69fa2437fe93e4e561cc40f4c03af",
              "status": "affected",
              "version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ceb8bd6c69c1680fd9b45e7f16d7170c9c7513a5",
              "versionType": "git"
            },
            {
              "lessThan": "6.6.144",
              "status": "affected",
              "version": "6.6.93",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.141",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/unix/garbage.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.144",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.38",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\naf_unix: Set gc_in_progress to true in unix_gc().\n\nIgor Ushakov reported that unix_gc() could run with gc_in_progress\nbeing false if the work is scheduled while running:\n\n  Thread 1         Thread 2                     Thread 3\n  --------         --------                     --------\n                   unix_schedule_gc()           unix_schedule_gc()\n                   `- if (!gc_in_progress)      `- if (!gc_in_progress)\n                      |- gc_in_progress = true     |\n                      `- queue_work()              |\n  unix_gc() \u003c----------------/                     |\n  |                                                |- gc_in_progress = true\n  ...                                              `- queue_work()\n  |                                                       |\n  `- gc_in_progress = false                               |\n                                                          |\n  unix_gc() \u003c---------------------------------------------\u0027\n  |\n  ... /* gc_in_progress == false */\n  |\n  `- gc_in_progress = false\n\nunix_peek_fpl() relies on gc_in_progress not to confuse GC\nby MSG_PEEK.\n\nLet\u0027s set gc_in_progress to true in unix_gc()."
    }
  ],
  "id": "CVE-2026-53361",
  "lastModified": "2026-07-04T12:17:02.010",
  "metrics": {},
  "published": "2026-07-04T12:17:02.010",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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