fkie_cve-2022-49967
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-11-14 17:28
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a data-race around bpf_jit_limit. While reading bpf_jit_limit, it can be changed concurrently via sysctl, WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit is long, so we need to add a paired READ_ONCE() to avoid load-tearing.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a data-race around bpf_jit_limit.\n\nWhile reading bpf_jit_limit, it can be changed concurrently via sysctl,\nWRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit\nis long, so we need to add a paired READ_ONCE() to avoid load-tearing."
    },
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Se corrige una ejecuci\u00f3n de datos en torno a bpf_jit_limit. Al leer bpf_jit_limit, se puede modificar simult\u00e1neamente mediante sysctl, WRITE_ONCE() en __do_proc_doulongvec_minmax(). El tama\u00f1o de bpf_jit_limit es grande, por lo que es necesario a\u00f1adir un par de READ_ONCE() para evitar la fragmentaci\u00f3n de la carga."
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  "id": "CVE-2022-49967",
  "lastModified": "2025-11-14T17:28:43.243",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-06-18T11:15:24.013",
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
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}


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