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EUVD-2026-344748

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:57

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:57:53.981996+00:00",
  "id": "EUVD-2026-344748"
}

CVE-2022-49530 (GCVE-0-2022-49530)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-08-05 08:55

Title

drm/amd/pm: fix double free in si_parse_power_table()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix double free in si_parse_power_table() In function si_parse_power_table(), array adev->pm.dpm.ps and its member is allocated. If the allocation of each member fails, the array itself is freed and returned with an error code. However, the array is later freed again in si_dpm_fini() function which is called when the function returns an error. This leads to potential double free of the array adev->pm.dpm.ps, as well as leak of its array members, since the members are not freed in the allocation function and the array is not nulled when freed. In addition adev->pm.dpm.num_ps, which keeps track of the allocated array member, is not updated until the member allocation is successfully finished, this could also lead to either use after free, or uninitialized variable access in si_dpm_fini(). Fix this by postponing the free of the array until si_dpm_fini() and increment adev->pm.dpm.num_ps everytime the array member is allocated.

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 2025-10-01 19:37 UTC

CWE

CWE-415 - Double Free

Assigner

Linux mitre root Scorecard

References

9 references

URL	Tags
https://git.kernel.org/stable/c/2615464854505188f…
https://git.kernel.org/stable/c/6c5bdaa1325be7f04…
https://git.kernel.org/stable/c/c0e811c4ccf3b4270…
https://git.kernel.org/stable/c/af832028af6f44c6c…
https://git.kernel.org/stable/c/ca1ce206894dd9762…
https://git.kernel.org/stable/c/a5ce7051db044290b…
https://git.kernel.org/stable/c/fd2eff8b9dcbe469c…
https://git.kernel.org/stable/c/43eb9b667b95f2a31…
https://git.kernel.org/stable/c/f3fa2becf2fc25b6a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < 2615464854505188f909d0c07c37a6623693b5c7 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < 6c5bdaa1325be7f04b79ea992ab216739192d342 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < c0e811c4ccf3b42705976285e3a94cc82dea7300 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < af832028af6f44c6c45645757079c4ed6884ade5 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < ca1ce206894dd976275c78ee38dbc19873f22de9 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < a5ce7051db044290b1a95045ff03c249005a3aa4 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < 43eb9b667b95f2a31c63e8949b0d2161b9be59c3 (git) Affected: 841686df9f7d2942cfd94d024b8591fa3f74ef7c , < f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd (git)
Linux	Linux	Affected: 4.9 Unaffected: 0 , < 4.9 (semver) Unaffected: 4.9.318 , ≤ 4.9.* (semver) Unaffected: 4.14.283 , ≤ 4.14.* (semver) Unaffected: 4.19.247 , ≤ 4.19.* (semver) Unaffected: 5.4.198 , ≤ 5.4.* (semver) Unaffected: 5.10.121 , ≤ 5.10.* (semver) Unaffected: 5.15.46 , ≤ 5.15.* (semver) Unaffected: 5.17.14 , ≤ 5.17.* (semver) Unaffected: 5.18.3 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49530",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:37:58.672887Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-415",
                "description": "CWE-415 Double Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:46:41.373Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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            {
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            },
            {
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              "versionType": "git"
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            {
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            {
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "lessThan": "4.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.318",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.318",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.283",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.247",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.198",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.121",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.46",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.14",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/pm: fix double free in si_parse_power_table()\n\nIn function si_parse_power_table(), array adev-\u003epm.dpm.ps and its member\nis allocated. If the allocation of each member fails, the array itself\nis freed and returned with an error code. However, the array is later\nfreed again in si_dpm_fini() function which is called when the function\nreturns an error.\n\nThis leads to potential double free of the array adev-\u003epm.dpm.ps, as\nwell as leak of its array members, since the members are not freed in\nthe allocation function and the array is not nulled when freed.\nIn addition adev-\u003epm.dpm.num_ps, which keeps track of the allocated\narray member, is not updated until the member allocation is\nsuccessfully finished, this could also lead to either use after free,\nor uninitialized variable access in si_dpm_fini().\n\nFix this by postponing the free of the array until si_dpm_fini() and\nincrement adev-\u003epm.dpm.num_ps everytime the array member is allocated."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only during local amdgpu PCI probe (amdgpu_device_ip_init \u2192 si_dpm_sw_init \u2192 si_dpm_init \u2192 si_parse_power_table) on Southern Islands GPUs; suspend/resume and GPU reset use hw callbacks and do not re-parse the power table, and no network path exists.\nAC:L - A local attacker can induce system-wide memory pressure so a mid-loop GFP_KERNEL kzalloc of struct si_ps fails; once that happens, the premature kfree of adev-\u003epm.dpm.ps followed by si_dpm_fini\u2019s second free is deterministic with no uncontrolled race.\nPR:L - Scored from an unprivileged local account on a shared system with an affected SI GPU under the higher-severity interpretation, consistent with sibling double-frees CVE-2023-52691 and CVE-2023-52469; real root is not required for the attacker\u2019s privileges prior to exploitation.\nUI:N - No separate victim action such as opening a file or mounting a device is required; the flaw is triggered by driver initialization under attacker-influenced memory conditions.\nS:U - Impact remains within the host kernel\u2019s security authority as standard kernel heap corruption / privilege escalation, with no VM escape, IOMMU bypass, or other security-boundary crossing.\nC:H - Double-free of the adev-\u003epm.dpm.ps heap object (with a dangling non-NULL pointer) is UAF-class memory corruption; reclaiming the freed slab enables arbitrary kernel read primitives.\nI:H - Double-free freelist corruption in the kernel allocator can be abused for overlapping objects and arbitrary write / control-flow hijacking, enabling full integrity compromise and privilege escalation.\nA:H - The double-free reliably corrupts kernel heap state and can oops/panic the kernel even when not fully exploited for code execution, which is Availability High under kernel CVSS guidance."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:55:26.829Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2615464854505188f909d0c07c37a6623693b5c7"
        },
        {
          "url": "https://git.kernel.org/stable/c/6c5bdaa1325be7f04b79ea992ab216739192d342"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0e811c4ccf3b42705976285e3a94cc82dea7300"
        },
        {
          "url": "https://git.kernel.org/stable/c/af832028af6f44c6c45645757079c4ed6884ade5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca1ce206894dd976275c78ee38dbc19873f22de9"
        },
        {
          "url": "https://git.kernel.org/stable/c/a5ce7051db044290b1a95045ff03c249005a3aa4"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b"
        },
        {
          "url": "https://git.kernel.org/stable/c/43eb9b667b95f2a31c63e8949b0d2161b9be59c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd"
        }
      ],
      "title": "drm/amd/pm: fix double free in si_parse_power_table()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49530",
    "datePublished": "2025-02-26T02:13:51.057Z",
    "dateReserved": "2025-02-26T02:08:31.588Z",
    "dateUpdated": "2026-08-05T08:55:26.829Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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EUVD-2026-344748

CVE-2022-49530 (GCVE-0-2022-49530)

Tags

Sightings

Nomenclature

Related by attack behaviour