CVE-2022-50167 (GCVE-0-2022-50167)
Vulnerability from cvelistv5
Published
2025-06-18 11:03
Modified
2025-06-18 11:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: fix potential 32-bit overflow when accessing ARRAY map element If BPF array map is bigger than 4GB, element pointer calculation can overflow because both index and elem_size are u32. Fix this everywhere by forcing 64-bit multiplication. Extract this formula into separate small helper and use it consistently in various places. Speculative-preventing formula utilizing index_mask trick is left as is, but explicit u64 casts are added in both places.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/063e092534d4c6785228e5b1eb6e9329f66ccbe4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c7256b880b3a5aa1895fd169a34aa4224a11862
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87ac0d600943994444e24382a87aa19acc4cd3d4
Impacted products
Vendor Product Version
Linux Linux Version: c85d69135a9175c50a823d04d62d932312d037b3
Version: c85d69135a9175c50a823d04d62d932312d037b3
Version: c85d69135a9175c50a823d04d62d932312d037b3
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   Linux Linux Version: 5.3
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/arraymap.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix potential 32-bit overflow when accessing ARRAY map element\n\nIf BPF array map is bigger than 4GB, element pointer calculation can\noverflow because both index and elem_size are u32. Fix this everywhere\nby forcing 64-bit multiplication. Extract this formula into separate\nsmall helper and use it consistently in various places.\n\nSpeculative-preventing formula utilizing index_mask trick is left as is,\nbut explicit u64 casts are added in both places."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:03:20.997Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2022-50167",
    "datePublished": "2025-06-18T11:03:20.997Z",
    "dateReserved": "2025-06-18T10:57:27.426Z",
    "dateUpdated": "2025-06-18T11:03:20.997Z",
    "state": "PUBLISHED"
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  }
}


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