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CVE-2022-49137 (GCVE-0-2022-49137)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-08-12 23:58
VLAI
Title
drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code.
Severity
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 19:48 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < 72d77ddb2224ebc00648f4f78f8a9a259dccbdf7 (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < 4009f104b02b223d1a11d74b36b1cc083bc37028 (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < 927beb05aaa429c883cc0ec6adc48964b187e291 (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < 3edd8646cb7c11b57c90e026bda6f21076223f5b (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < bc2d5c0775c839e2b072884f4ee6a93ba410f107 (git)
Affected: 7ca24cf2d2269bde25e21c02a77fe81995a081ae , < dfced44f122c500004a48ecc8db516bb6a295a1b (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.111 , ≤ 5.10.* (semver)
Unaffected: 5.15.34 , ≤ 5.15.* (semver)
Unaffected: 5.16.20 , ≤ 5.16.* (semver)
Unaffected: 5.17.3 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "tags": [
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
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            "url": "https://git.kernel.org/stable/c/927beb05aaa429c883cc0ec6adc48964b187e291"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/dfced44f122c500004a48ecc8db516bb6a295a1b"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
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            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T20:59:45+00:00",
      "cve": "CVE-2022-49137",
      "id": "CVE-2022-49137",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49137.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-11T02:31:13Z",
      "cve": "CVE-2022-49137",
      "id": "CVE-2022-49137",
      "initial_release_date": "2025-02-27T03:11:42Z",
      "product_status:known_affected": "409",
      "product_status:known_not_affected": "242",
      "product_status:recommended": "319",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49137",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49137.json",
      "version": "56"
    },
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                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "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",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
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                    "options": [
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                      },
                      {
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                      },
                      {
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                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:48:05.650366Z",
                    "version": "2.0.3"
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                  "type": "ssvc"
                }
              }
            ],
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                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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              "product": "Linux",
              "programFiles": [
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              "vendor": "Linux",
              "versions": [
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                },
                {
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                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.238",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.189",
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                {
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                  "version": "5.10.111",
                  "versionType": "semver"
                },
                {
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            }
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        "dateReserved": "2025-02-26T01:49:39.268Z",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.