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FKIE_CVE-2026-74416

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06dc892561f5a08b2493c34c8ec2cb94dea33159
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07c213f3499dd72e2922c1c73fe9ffea24874bef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c9ba32308c02c198c378fcdf06be9ffc3111147
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63912418f1fbb6456ea04bbcdf8f4d5090d23350
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/82f1d6042611d45b8b9de423bbcb4e0ced9ec62b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/919e3e398bf301c6418dffdcd5e5c4fd9be39cf7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccc42187fc2d0720947a63ce1b9e399d2c068ff4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eecfb76129ebef7e3aa41e18a4668cd91dfc6267
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-74416",
  "lastModified": "2026-08-17T06:19:37.063",
  "metrics": {},
  "published": "2026-08-15T06:22:43.690",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/06dc892561f5a08b2493c34c8ec2cb94dea33159"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/07c213f3499dd72e2922c1c73fe9ffea24874bef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1c9ba32308c02c198c378fcdf06be9ffc3111147"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/63912418f1fbb6456ea04bbcdf8f4d5090d23350"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82f1d6042611d45b8b9de423bbcb4e0ced9ec62b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/919e3e398bf301c6418dffdcd5e5c4fd9be39cf7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccc42187fc2d0720947a63ce1b9e399d2c068ff4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eecfb76129ebef7e3aa41e18a4668cd91dfc6267"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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