Vulnerability-Lookup

GHSA-4HQC-3J39-58MH

Vulnerability from github – Published: 2025-03-06 18:31 – Updated: 2025-03-06 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing

There is a UAF report in the bpf_struct_ops when CONFIG_MODULES=n. In particular, the report is on tcp_congestion_ops that has a "struct module *owner" member.

For struct_ops that has a "struct module *owner" member, it can be extended either by the regular kernel module or by the bpf_struct_ops. bpf_try_module_get() will be used to do the refcounting and different refcount is done based on the owner pointer. When CONFIG_MODULES=n, the btf_id of the "struct module" is missing:

WARN: resolve_btfids: unresolved symbol module

Thus, the bpf_try_module_get() cannot do the correct refcounting.

Not all subsystem's struct_ops requires the "struct module *owner" member. e.g. the recent sched_ext_ops.

This patch is to disable bpf_struct_ops registration if the struct_ops has the "struct module *" member and the "struct module" btf_id is missing. The btf_type_is_fwd() helper is moved to the btf.h header file for this test.

This has happened since the beginning of bpf_struct_ops which has gone through many changes. The Fixes tag is set to a recent commit that this patch can apply cleanly. Considering CONFIG_MODULES=n is not common and the age of the issue, targeting for bpf-next also.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58060"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-06T16:15:52Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing\n\nThere is a UAF report in the bpf_struct_ops when CONFIG_MODULES=n.\nIn particular, the report is on tcp_congestion_ops that has\na \"struct module *owner\" member.\n\nFor struct_ops that has a \"struct module *owner\" member,\nit can be extended either by the regular kernel module or\nby the bpf_struct_ops. bpf_try_module_get() will be used\nto do the refcounting and different refcount is done\nbased on the owner pointer. When CONFIG_MODULES=n,\nthe btf_id of the \"struct module\" is missing:\n\nWARN: resolve_btfids: unresolved symbol module\n\nThus, the bpf_try_module_get() cannot do the correct refcounting.\n\nNot all subsystem\u0027s struct_ops requires the \"struct module *owner\" member.\ne.g. the recent sched_ext_ops.\n\nThis patch is to disable bpf_struct_ops registration if\nthe struct_ops has the \"struct module *\" member and the\n\"struct module\" btf_id is missing. The btf_type_is_fwd() helper\nis moved to the btf.h header file for this test.\n\nThis has happened since the beginning of bpf_struct_ops which has gone\nthrough many changes. The Fixes tag is set to a recent commit that this\npatch can apply cleanly. Considering CONFIG_MODULES=n is not\ncommon and the age of the issue, targeting for bpf-next also.",
  "id": "GHSA-4hqc-3j39-58mh",
  "modified": "2025-03-06T18:31:09Z",
  "published": "2025-03-06T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58060"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2324fb4e92092837ee278fdd8d60c48ee1a619ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96ea081ed52bf077cad6d00153b6fba68e510767"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b777b14c2a4a4e2322daf8e8ffd42d2b88831b17"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-58060 (GCVE-0-2024-58060)

Vulnerability from cvelistv5 – Published: 2025-03-06 15:54 – Updated: 2026-08-05 11:47

Title

bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing There is a UAF report in the bpf_struct_ops when CONFIG_MODULES=n. In particular, the report is on tcp_congestion_ops that has a "struct module *owner" member. For struct_ops that has a "struct module *owner" member, it can be extended either by the regular kernel module or by the bpf_struct_ops. bpf_try_module_get() will be used to do the refcounting and different refcount is done based on the owner pointer. When CONFIG_MODULES=n, the btf_id of the "struct module" is missing: WARN: resolve_btfids: unresolved symbol module Thus, the bpf_try_module_get() cannot do the correct refcounting. Not all subsystem's struct_ops requires the "struct module *owner" member. e.g. the recent sched_ext_ops. This patch is to disable bpf_struct_ops registration if the struct_ops has the "struct module *" member and the "struct module" btf_id is missing. The btf_type_is_fwd() helper is moved to the btf.h header file for this test. This has happened since the beginning of bpf_struct_ops which has gone through many changes. The Fixes tag is set to a recent commit that this patch can apply cleanly. Considering CONFIG_MODULES=n is not common and the age of the issue, targeting for bpf-next also.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-06 16:04 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/b777b14c2a4a4e232…
https://git.kernel.org/stable/c/2324fb4e92092837e…
https://git.kernel.org/stable/c/96ea081ed52bf077c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1611603537a4b88cec7993f32b70c03113801a46 , < b777b14c2a4a4e2322daf8e8ffd42d2b88831b17 (git) Affected: 1611603537a4b88cec7993f32b70c03113801a46 , < 2324fb4e92092837ee278fdd8d60c48ee1a619ce (git) Affected: 1611603537a4b88cec7993f32b70c03113801a46 , < 96ea081ed52bf077cad6d00153b6fba68e510767 (git)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.12.13 , ≤ 6.12.* (semver) Unaffected: 6.13.2 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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                "id": "CVE-2024-58060",
                "options": [
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                    "Exploitation": "none"
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                  },
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                "timestamp": "2025-03-06T16:04:02.766596Z",
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              },
              "type": "ssvc"
            }
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        ],
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            "descriptions": [
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                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
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          "dateUpdated": "2025-03-06T16:04:30.923Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      }
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    "cna": {
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          "product": "Linux",
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                },
                {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing\n\nThere is a UAF report in the bpf_struct_ops when CONFIG_MODULES=n.\nIn particular, the report is on tcp_congestion_ops that has\na \"struct module *owner\" member.\n\nFor struct_ops that has a \"struct module *owner\" member,\nit can be extended either by the regular kernel module or\nby the bpf_struct_ops. bpf_try_module_get() will be used\nto do the refcounting and different refcount is done\nbased on the owner pointer. When CONFIG_MODULES=n,\nthe btf_id of the \"struct module\" is missing:\n\nWARN: resolve_btfids: unresolved symbol module\n\nThus, the bpf_try_module_get() cannot do the correct refcounting.\n\nNot all subsystem\u0027s struct_ops requires the \"struct module *owner\" member.\ne.g. the recent sched_ext_ops.\n\nThis patch is to disable bpf_struct_ops registration if\nthe struct_ops has the \"struct module *\" member and the\n\"struct module\" btf_id is missing. The btf_type_is_fwd() helper\nis moved to the btf.h header file for this test.\n\nThis has happened since the beginning of bpf_struct_ops which has gone\nthrough many changes. The Fixes tag is set to a recent commit that this\npatch can apply cleanly. Considering CONFIG_MODULES=n is not\ncommon and the age of the issue, targeting for bpf-next also."
        }
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          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The attack is driven entirely through local syscalls \u2014 bpf(BPF_MAP_CREATE/MAP_UPDATE_ELEM/LINK_CREATE) to register the struct_ops congestion control, setsockopt(TCP_CONGESTION) to bind a socket to it, and close() to drop the map. Although the freed object is subsequently dereferenced while processing TCP ACKs, a remote peer cannot perform the registration/free setup.\nAC:L - On an affected kernel every step is deterministic and attacker-driven \u2014 register the struct_ops, attach it to a socket the attacker owns, close the fds to free the map, then drive traffic over loopback to hit the dangling icsk_ca_ops; there is no race and no dependence on memory layout the attacker cannot influence. The build-time CONFIG_MODULES=n precondition defines the vulnerable configuration rather than a condition to be won at exploit time, and it is trivially observable in advance (absent /proc/modules).\nPR:L - Creating the struct_ops map goes through bpf_token_capable(token, CAP_BPF), which BPF tokens explicitly delegate into unprivileged container user namespaces \u2014 the model container runtimes and BPF agents routinely use \u2014 and the socket, setsockopt(TCP_CONGESTION) and loopback-traffic halves of the attack need no capability at all.\nUI:N - The attacker performs the entire sequence with its own process, sockets and file descriptors; no victim action, mount, or configuration change by another user is required.\nS:U - The dangling tcp_congestion_ops pointer is dereferenced by the same kernel the attacker already has local access to; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed st_map allocation holding kvalue.data can be reclaimed and shaped by the attacker while sockets still read through icsk_ca_ops, turning the stale pointer into a controlled kernel-memory read primitive that leaks arbitrary kernel data.\nI:H - The kernel makes indirect calls through function pointers in the freed tcp_congestion_ops and into freed trampoline/bpf_prog_pack executable pages, giving a direct control-flow hijack primitive after heap or exec-page reclaim \u2014 full arbitrary write and code execution in kernel context.\nA:H - Even unweaponized, the use-after-free causes an oops or panic on the next congestion-control callback, and installing the bpf CA as the netns default poisons every new TCP socket in that namespace, wedging the network stack."
            }
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    "dateReserved": "2025-03-06T15:52:09.179Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-4HQC-3J39-58MH

CVE-2024-58060 (GCVE-0-2024-58060)

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