CVE-2024-58100 (GCVE-0-2024-58100)

Vulnerability from cvelistv5 – Published: 2025-05-05 14:53 – Updated: 2025-05-09 08:06
VLAI?
Title
bpf: check changes_pkt_data property for extension programs
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: check changes_pkt_data property for extension programs When processing calls to global sub-programs, verifier decides whether to invalidate all packet pointers in current state depending on the changes_pkt_data property of the global sub-program. Because of this, an extension program replacing a global sub-program must be compatible with changes_pkt_data property of the sub-program being replaced. This commit: - adds changes_pkt_data flag to struct bpf_prog_aux: - this flag is set in check_cfg() for main sub-program; - in jit_subprogs() for other sub-programs; - modifies bpf_check_attach_btf_id() to check changes_pkt_data flag; - moves call to check_attach_btf_id() after the call to check_cfg(), because it needs changes_pkt_data flag to be set: bpf_check: ... ... - check_attach_btf_id resolve_pseudo_ldimm64 resolve_pseudo_ldimm64 --> bpf_prog_is_offloaded bpf_prog_is_offloaded check_cfg check_cfg + check_attach_btf_id ... ... The following fields are set by check_attach_btf_id(): - env->ops - prog->aux->attach_btf_trace - prog->aux->attach_func_name - prog->aux->attach_func_proto - prog->aux->dst_trampoline - prog->aux->mod - prog->aux->saved_dst_attach_type - prog->aux->saved_dst_prog_type - prog->expected_attach_type Neither of these fields are used by resolve_pseudo_ldimm64() or bpf_prog_offload_verifier_prep() (for netronome and netdevsim drivers), so the reordering is safe.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: be8704ff07d2374bcc5c675526f95e70c6459683 , < 7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7 (git)
Affected: be8704ff07d2374bcc5c675526f95e70c6459683 , < 3846e2bea565ee1c5195dcc625fda9868fb0e3b3 (git)
Affected: be8704ff07d2374bcc5c675526f95e70c6459683 , < 81f6d0530ba031b5f038a091619bf2ff29568852 (git)
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    Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.6.90 , ≤ 6.6.* (semver)
Unaffected: 6.12.25 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/bpf.h",
            "kernel/bpf/verifier.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "lessThan": "7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7",
              "status": "affected",
              "version": "be8704ff07d2374bcc5c675526f95e70c6459683",
              "versionType": "git"
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            {
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              "versionType": "git"
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          "product": "Linux",
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          "vendor": "Linux",
          "versions": [
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              "version": "5.6"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.90",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.25",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
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      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.90",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.25",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
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              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: check changes_pkt_data property for extension programs\n\nWhen processing calls to global sub-programs, verifier decides whether\nto invalidate all packet pointers in current state depending on the\nchanges_pkt_data property of the global sub-program.\n\nBecause of this, an extension program replacing a global sub-program\nmust be compatible with changes_pkt_data property of the sub-program\nbeing replaced.\n\nThis commit:\n- adds changes_pkt_data flag to struct bpf_prog_aux:\n  - this flag is set in check_cfg() for main sub-program;\n  - in jit_subprogs() for other sub-programs;\n- modifies bpf_check_attach_btf_id() to check changes_pkt_data flag;\n- moves call to check_attach_btf_id() after the call to check_cfg(),\n  because it needs changes_pkt_data flag to be set:\n\n    bpf_check:\n      ...                             ...\n    - check_attach_btf_id             resolve_pseudo_ldimm64\n      resolve_pseudo_ldimm64   --\u003e    bpf_prog_is_offloaded\n      bpf_prog_is_offloaded           check_cfg\n      check_cfg                     + check_attach_btf_id\n      ...                             ...\n\nThe following fields are set by check_attach_btf_id():\n- env-\u003eops\n- prog-\u003eaux-\u003eattach_btf_trace\n- prog-\u003eaux-\u003eattach_func_name\n- prog-\u003eaux-\u003eattach_func_proto\n- prog-\u003eaux-\u003edst_trampoline\n- prog-\u003eaux-\u003emod\n- prog-\u003eaux-\u003esaved_dst_attach_type\n- prog-\u003eaux-\u003esaved_dst_prog_type\n- prog-\u003eexpected_attach_type\n\nNeither of these fields are used by resolve_pseudo_ldimm64() or\nbpf_prog_offload_verifier_prep() (for netronome and netdevsim\ndrivers), so the reordering is safe."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-09T08:06:09.147Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/3846e2bea565ee1c5195dcc625fda9868fb0e3b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/81f6d0530ba031b5f038a091619bf2ff29568852"
        }
      ],
      "title": "bpf: check changes_pkt_data property for extension programs",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-58100",
    "datePublished": "2025-05-05T14:53:33.445Z",
    "dateReserved": "2025-03-06T15:52:09.189Z",
    "dateUpdated": "2025-05-09T08:06:09.147Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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