Vulnerability-Lookup

GHSA-29PG-6WGV-66X3

Vulnerability from github – Published: 2024-12-29 09:30 – Updated: 2025-11-03 21:32

Details

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

ionic: Fix netdev notifier unregister on failure

If register_netdev() fails, then the driver leaks the netdev notifier. Fix this by calling ionic_lif_unregister() on register_netdev() failure. This will also call ionic_lif_unregister_phc() if it has already been registered.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56715"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-29T09:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: Fix netdev notifier unregister on failure\n\nIf register_netdev() fails, then the driver leaks the netdev notifier.\nFix this by calling ionic_lif_unregister() on register_netdev()\nfailure. This will also call ionic_lif_unregister_phc() if it has\nalready been registered.",
  "id": "GHSA-29pg-6wgv-66x3",
  "modified": "2025-11-03T21:32:02Z",
  "published": "2024-12-29T09:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56715"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87847938f5708b2509b279369c96572254bcf2ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9590d32e090ea2751e131ae5273859ca22f5ac14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da5736f516a664a9e1ff74902663c64c423045d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da93a12876f8b969df7316dc93aac7e725f88252"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-56715 (GCVE-0-2024-56715)

Vulnerability from cvelistv5 – Published: 2024-12-29 08:48 – Updated: 2026-08-05 11:46

Title

ionic: Fix netdev notifier unregister on failure

Summary

In the Linux kernel, the following vulnerability has been resolved: ionic: Fix netdev notifier unregister on failure If register_netdev() fails, then the driver leaks the netdev notifier. Fix this by calling ionic_lif_unregister() on register_netdev() failure. This will also call ionic_lif_unregister_phc() if it has already been registered.

Severity

7.8 (High)


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

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:58 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6843 records in the last 180 days details

References

6 references

URL	Tags
https://git.kernel.org/stable/c/87847938f5708b250…
https://git.kernel.org/stable/c/da93a12876f8b969d…
https://git.kernel.org/stable/c/da5736f516a664a9e…
https://git.kernel.org/stable/c/ee2e931b2b46de9af…
https://git.kernel.org/stable/c/9590d32e090ea2751…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 30b87ab4c0b30e0f681cb7dfaab6c642dd17e454 , < 87847938f5708b2509b279369c96572254bcf2ba (git) Affected: 30b87ab4c0b30e0f681cb7dfaab6c642dd17e454 , < da93a12876f8b969df7316dc93aac7e725f88252 (git) Affected: 30b87ab4c0b30e0f681cb7dfaab6c642dd17e454 , < da5736f516a664a9e1ff74902663c64c423045d2 (git) Affected: 30b87ab4c0b30e0f681cb7dfaab6c642dd17e454 , < ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6 (git) Affected: 30b87ab4c0b30e0f681cb7dfaab6c642dd17e454 , < 9590d32e090ea2751e131ae5273859ca22f5ac14 (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.15.176 , ≤ 5.15.* (semver) Unaffected: 6.1.122 , ≤ 6.1.* (semver) Unaffected: 6.6.68 , ≤ 6.6.* (semver) Unaffected: 6.12.7 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
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              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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                "id": "CVE-2024-56715",
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        }
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              "value": "AV:L - Both the creation of the dangling notifier (a local PCI driver probe of a Pensando/AMD ionic NIC) and the dereference (a local netdev event such as network-namespace creation) occur entirely on the local system; no network packet or remote peer data reaches this path.\nAC:L - Once probe has failed and left `ionic-\u003enb` on `netdev_chain`, the freed-memory dereference is deterministic and infinitely repeatable \u2014 every `unshare -Urn`, container start, or `ip link` event walks the chain, with no race to win and no unpredictable memory layout required.\nPR:L - Reaching the dangling notifier requires no privilege beyond an ordinary local user: creating a network namespace via an unprivileged user namespace registers `lo` and fires `call_netdevice_notifiers(NETDEV_REGISTER)`, and the same user can groom the freed `struct ionic` region (kernel-stack/vmalloc and slab reclaim) to control the values read back.\nUI:N - No action by any victim user or administrator is needed at exploitation time; the attacker triggers the notifier chain walk himself through ordinary namespace or interface operations.\nS:U - The use-after-free corrupts kernel memory and hijacks control flow within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `notifier_call_chain()` reads `nb-\u003enext` and `nb-\u003enotifier_call` from the freed `struct ionic`, and the surviving `ionic_lif_notify()` callback further dereferences the stale `ionic`/`lif` pointers, so a reclaimed and attacker-shaped allocation yields an arbitrary kernel-read primitive.\nI:H - The chain walk performs `nb-\u003enotifier_call(nb, val, v)` on a function pointer loaded from freed memory \u2014 a direct indirect-call/control-flow-hijack primitive \u2014 and the corrupted `nb-\u003enext` linkage additionally lets a later `raw_notifier_chain_unregister()` write through attacker-influenced pointers.\nA:H - After a failed ionic probe the machine is left one netdev event away from an oops or panic in `notifier_call_chain()`, and any unprivileged user can force that crash on demand and repeatedly."
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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.

Vulnerability timeline

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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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