FKIE_CVE-2024-49976

Vulnerability from fkie_nvd - Published: 2024-10-21 18:15 - Updated: 2026-06-17 08:00
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Drop interface_lock in stop_kthread() stop_kthread() is the offline callback for "trace/osnoise:online", since commit 5bfbcd1ee57b ("tracing/timerlat: Add interface_lock around clearing of kthread in stop_kthread()"), the following ABBA deadlock scenario is introduced: T1 | T2 [BP] | T3 [AP] osnoise_hotplug_workfn() | work_for_cpu_fn() | cpuhp_thread_fun() | _cpu_down() | osnoise_cpu_die() mutex_lock(&interface_lock) | | stop_kthread() | cpus_write_lock() | mutex_lock(&interface_lock) cpus_read_lock() | cpuhp_kick_ap() | As the interface_lock here in just for protecting the "kthread" field of the osn_var, use xchg() instead to fix this issue. Also use for_each_online_cpu() back in stop_per_cpu_kthreads() as it can take cpu_read_lock() again.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09cb44cc3d3df7ade2cebc939d6257a2fa8afc7aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4a05ceffe8fad68b45de38fe2311bda619e76e2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b484a02c9cedf8703eff8f0756f94618004bd165Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db8571a9a098086608c11a15856ff585789e67e8Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_osnoise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a4a05ceffe8fad68b45de38fe2311bda619e76e2",
              "status": "affected",
              "version": "b4fdabffae14cca2c80d99bd81f3f27239ac7f5e",
              "versionType": "git"
            },
            {
              "lessThan": "09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a",
              "status": "affected",
              "version": "4679272d5252720746fd9c5465352cbc5665f230",
              "versionType": "git"
            },
            {
              "lessThan": "db8571a9a098086608c11a15856ff585789e67e8",
              "status": "affected",
              "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad",
              "versionType": "git"
            },
            {
              "lessThan": "b484a02c9cedf8703eff8f0756f94618004bd165",
              "status": "affected",
              "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad",
              "versionType": "git"
            },
            {
              "lessThan": "6.6.55",
              "status": "affected",
              "version": "6.6.51",
              "versionType": "semver"
            },
            {
              "lessThan": "6.10.14",
              "status": "affected",
              "version": "6.10.10",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_osnoise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "588DF926-B51D-4153-8125-8F56DE5B5A54",
              "versionEndExcluding": "6.6.55",
              "versionStartIncluding": "6.6.51",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2915A66-5936-4016-8869-18BC9109593F",
              "versionEndExcluding": "6.10.14",
              "versionStartIncluding": "6.10.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9",
              "versionEndExcluding": "6.11.3",
              "versionStartIncluding": "6.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Drop interface_lock in stop_kthread()\n\nstop_kthread() is the offline callback for \"trace/osnoise:online\", since\ncommit 5bfbcd1ee57b (\"tracing/timerlat: Add interface_lock around clearing\nof kthread in stop_kthread()\"), the following ABBA deadlock scenario is\nintroduced:\n\nT1                            | T2 [BP]               | T3 [AP]\nosnoise_hotplug_workfn()      | work_for_cpu_fn()     | cpuhp_thread_fun()\n                              |   _cpu_down()         |   osnoise_cpu_die()\n  mutex_lock(\u0026interface_lock) |                       |     stop_kthread()\n                              |     cpus_write_lock() |       mutex_lock(\u0026interface_lock)\n  cpus_read_lock()            |     cpuhp_kick_ap()   |\n\nAs the interface_lock here in just for protecting the \"kthread\" field of\nthe osn_var, use xchg() instead to fix this issue. Also use\nfor_each_online_cpu() back in stop_per_cpu_kthreads() as it can take\ncpu_read_lock() again."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing/timerlat: eliminar interface_lock en stop_kthread() stop_kthread() es la devoluci\u00f3n de llamada fuera de l\u00ednea para \"trace/osnoise:online\", desde el commit 5bfbcd1ee57b (\"tracing/timerlat: agregar interface_lock alrededor de la limpieza de kthread en stop_kthread()\"), se introduce el siguiente escenario de bloqueo ABBA: T1 | T2 [BP] | T3 [AP] osnoise_hotplug_workfn() | work_for_cpu_fn() | cpuhp_thread_fun() | _cpu_down() | osnoise_cpu_die() mutex_lock(\u0026amp;interface_lock) | | stop_kthread() | cpus_write_lock() | mutex_lock(\u0026amp;interface_lock) cpus_read_lock() | cpuhp_kick_ap() | Como interface_lock aqu\u00ed solo sirve para proteger el campo \"kthread\" de osn_var, utilice xchg() en su lugar para solucionar este problema. Utilice tambi\u00e9n for_each_online_cpu() en stop_per_cpu_kthreads(), ya que puede volver a activar cpu_read_lock()."
    }
  ],
  "id": "CVE-2024-49976",
  "lastModified": "2026-06-17T08:00:51.820",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-49976",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-22T13:33:08.568915Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-21T18:15:18.353",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a4a05ceffe8fad68b45de38fe2311bda619e76e2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b484a02c9cedf8703eff8f0756f94618004bd165"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/db8571a9a098086608c11a15856ff585789e67e8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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