CVE-2026-74416 (GCVE-0-2026-74416)
Vulnerability from cvelistv5
Published
2026-08-15 05:59
Modified
2026-08-17 05:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix memory leak in radeon_ring_restore() on lock failure radeon_ring_restore() takes ownership of the data buffer allocated by radeon_ring_backup(). The caller (radeon_gpu_reset()) only frees it in the non-restore branch; in the restore branch it relies on radeon_ring_restore() to free it. If radeon_ring_lock() fails, the function returned early without calling kvfree(data), leaking the ring backup buffer on every GPU reset that fails at the lock stage. During repeated GPU resets this causes cumulative kernel memory exhaustion. Free data before returning the error.
References
Impacted products
Vendor Product Version
Linux Linux Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
Version: 55d7c22192becd0ec827a6901899ff56fa985658
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/radeon/radeon_ring.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "63912418f1fbb6456ea04bbcdf8f4d5090d23350",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "919e3e398bf301c6418dffdcd5e5c4fd9be39cf7",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "07c213f3499dd72e2922c1c73fe9ffea24874bef",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "1c9ba32308c02c198c378fcdf06be9ffc3111147",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "eecfb76129ebef7e3aa41e18a4668cd91dfc6267",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "06dc892561f5a08b2493c34c8ec2cb94dea33159",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "ccc42187fc2d0720947a63ce1b9e399d2c068ff4",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            },
            {
              "lessThan": "82f1d6042611d45b8b9de423bbcb4e0ced9ec62b",
              "status": "affected",
              "version": "55d7c22192becd0ec827a6901899ff56fa985658",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/radeon/radeon_ring.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.6"
            },
            {
              "lessThan": "3.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: fix memory leak in radeon_ring_restore() on lock failure\n\nradeon_ring_restore() takes ownership of the data buffer allocated by\nradeon_ring_backup(). The caller (radeon_gpu_reset()) only frees it in\nthe non-restore branch; in the restore branch it relies on\nradeon_ring_restore() to free it.\n\nIf radeon_ring_lock() fails, the function returned early without calling\nkvfree(data), leaking the ring backup buffer on every GPU reset that\nfails at the lock stage. During repeated GPU resets this causes\ncumulative kernel memory exhaustion.\n\nFree data before returning the error."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:18:58.660Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/63912418f1fbb6456ea04bbcdf8f4d5090d23350"
        },
        {
          "url": "https://git.kernel.org/stable/c/919e3e398bf301c6418dffdcd5e5c4fd9be39cf7"
        },
        {
          "url": "https://git.kernel.org/stable/c/07c213f3499dd72e2922c1c73fe9ffea24874bef"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c9ba32308c02c198c378fcdf06be9ffc3111147"
        },
        {
          "url": "https://git.kernel.org/stable/c/eecfb76129ebef7e3aa41e18a4668cd91dfc6267"
        },
        {
          "url": "https://git.kernel.org/stable/c/06dc892561f5a08b2493c34c8ec2cb94dea33159"
        },
        {
          "url": "https://git.kernel.org/stable/c/ccc42187fc2d0720947a63ce1b9e399d2c068ff4"
        },
        {
          "url": "https://git.kernel.org/stable/c/82f1d6042611d45b8b9de423bbcb4e0ced9ec62b"
        }
      ],
      "title": "drm/radeon: fix memory leak in radeon_ring_restore() on lock failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74416",
    "datePublished": "2026-08-15T05:59:22.077Z",
    "dateReserved": "2026-08-15T05:44:03.893Z",
    "dateUpdated": "2026-08-17T05:18:58.660Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.