Vulnerability-Lookup

OESA-2026-1503 (CVE-2024-36973)

Vulnerability from osv_openeuler – Published: 2026-03-06 11:10 – Updated: 2026-08-06 11:10 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), callback function gp_auxiliary_device_release() calls ida_free() and kfree(aux_device_wrapper) to free memory. We should't call them again in the error handling path.

Fix this by skipping the redundant cleanup functions.(CVE-2024-36973)

Severity

6.2 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2024-36973	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bpftool-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "bpftool-debuginfo-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-debuginfo-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-debugsource-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-devel-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-headers-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-source-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-tools-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-tools-debuginfo-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "kernel-tools-devel-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "perf-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "perf-debuginfo-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "python3-perf-6.6.0-141.0.0.123.oe2403.aarch64.rpm",
          "python3-perf-debuginfo-6.6.0-141.0.0.123.oe2403.aarch64.rpm"
        ],
        "src": [
          "kernel-6.6.0-141.0.0.123.oe2403.src.rpm"
        ],
        "x86_64": [
          "bpftool-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "bpftool-debuginfo-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-debuginfo-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-debugsource-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-devel-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-headers-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-source-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-tools-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-tools-debuginfo-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "kernel-tools-devel-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "perf-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "perf-debuginfo-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "python3-perf-6.6.0-141.0.0.123.oe2403.x86_64.rpm",
          "python3-perf-debuginfo-6.6.0-141.0.0.123.oe2403.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.0-141.0.0.123.oe2403"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmisc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()\n\nWhen auxiliary_device_add() returns error and then calls\nauxiliary_device_uninit(), callback function\ngp_auxiliary_device_release() calls ida_free() and\nkfree(aux_device_wrapper) to free memory. We should\u0026apos;t\ncall them again in the error handling path.\n\nFix this by skipping the redundant cleanup functions.(CVE-2024-36973)",
  "id": "OESA-2026-1503",
  "modified": "2026-08-06T11:10:31Z",
  "published": "2026-03-06T11:10:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1503"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36973"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2024-36973"
  ]
}

CVE-2024-36973 (GCVE-0-2024-36973)

Vulnerability from cvelistv5 – Published: 2024-06-17 17:51 – Updated: 2026-08-05 11:32

Title

misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

Summary

In the Linux kernel, the following vulnerability has been resolved: misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe() When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), callback function gp_auxiliary_device_release() calls ida_free() and kfree(aux_device_wrapper) to free memory. We should't call them again in the error handling path. Fix this by skipping the redundant cleanup functions.

Severity

8.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-17 20:17 UTC

Assigner

Linux mitre root Scorecard

References

5 references

URL	Tags
https://git.kernel.org/stable/c/34ae447b138680b5e…
https://git.kernel.org/stable/c/86c9713602f786f44…
https://git.kernel.org/stable/c/1efe551982297924d…
https://git.kernel.org/stable/c/086c6cbcc563c81d5…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 393fc2f5948fd340d016a9557eea6e1ac2f6c60c , < 34ae447b138680b5ed3660f7d935ff3faf88ba1a (git) Affected: 393fc2f5948fd340d016a9557eea6e1ac2f6c60c , < 86c9713602f786f441630c4ee02891987f8618b9 (git) Affected: 393fc2f5948fd340d016a9557eea6e1ac2f6c60c , < 1efe551982297924d05a367aa2b6ec3d275d5742 (git) Affected: 393fc2f5948fd340d016a9557eea6e1ac2f6c60c , < 086c6cbcc563c81d55257f9b27e14faf1d0963d3 (git)
Linux	Linux	Affected: 6.1 Unaffected: 0 , < 6.1 (semver) Unaffected: 6.1.95 , ≤ 6.1.* (semver) Unaffected: 6.6.35 , ≤ 6.6.* (semver) Unaffected: 6.9.6 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-36973",
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                    "Exploitation": "none"
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T20:17:26.989474Z",
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              "value": "AV:L - The flaw is in a PCI driver\u0027s probe path, reached through local device enumeration/hotplug or driver (re)bind on the machine itself, not through any network protocol. This matches the treatment of other driver probe-path double-free/UAF flaws in this subsystem class.\nAC:L - The error path is deterministic \u2014 an endpoint presenting the matching IDs with no MSI-X/MSI capability and no INTx pin makes pci_alloc_irq_vectors() return -ENOSPC every time, falling straight through into the double free with no race to win and no memory-layout precondition outside the attacker\u0027s control.\nPR:N - The vulnerable code runs autonomously during PCI probe at boot or on hotplug enumeration; the attacker needs no account, credentials, or capability on the system for the driver to auto-load and execute the faulty error path.\nUI:N - Probe is invoked automatically by the PCI core and udev-driven module autoload on device enumeration; no logged-in user has to open, mount, or interact with anything.\nS:U - The corruption is confined to the kernel\u0027s own heap and device model, within the same security authority as the vulnerable component; no IOMMU, hypervisor, or sandbox boundary is crossed.\nC:H - After the release callback frees the wrapper, the code reads aux_dev.id back out of freed memory and a still-registered struct device is left pointing at the freed allocation, so reclaimed heap contents can be read back through the auxiliary bus/sysfs \u2014 a use-after-free read primitive.\nI:H - The same kmalloc\u0027d object is freed twice, corrupting the slab freelist and allowing the attacker to have one allocation handed out to two owners (type confusion), the classic route to an arbitrary kernel write and control-flow hijack; a live sysfs-registered device over freed memory compounds this.\nA:H - The double free plus use-after-free reliably corrupts slab state and trips freelist/KASAN checks, producing a kernel oops or panic; the dangling registered auxiliary device can crash the box on any later access."
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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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OESA-2026-1503 (CVE-2024-36973)

CVE-2024-36973 (GCVE-0-2024-36973)

Tags

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Nomenclature

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