CVE-2022-49967 (GCVE-0-2022-49967)
Vulnerability from cvelistv5
Published
2025-06-18 11:00
Modified
2025-06-18 11:00
Severity ?
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
Impacted products
Vendor Product Version
Linux Linux Version: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3
Version: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3
Version: c98446e1bab6253ddce7144cc2a91c400a323839
Version: a1fe647042affe713a17243cd10e9b25f3d83948
Version: 43caa29c99db5a41b204e8ced01b00e151335ca8
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          "lang": "en",
          "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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      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:31.782Z",
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29"
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    "cveId": "CVE-2022-49967",
    "datePublished": "2025-06-18T11:00:31.782Z",
    "dateReserved": "2025-06-18T10:57:27.384Z",
    "dateUpdated": "2025-06-18T11:00:31.782Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49967\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:24.013\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"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.\"},{\"lang\":\"es\",\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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}


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