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CVE-2026-63885 drm/gem: fix race between change_handle and handle_delete

🗓️ 19 Jul 2026 14:54:58Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Fix race between change_handle and handle_delete in drm gem by nulling the old handle entry before dropping the lock.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/drm_gem.c"
    ],
    "versions": [
      {
        "version": "672464dd53231509c9c771110798c56d4660e19e",
        "lessThan": "0dfa42cfe4dbe114533480503934f43e33c1e83d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "61bd96d3e5472c253f9c1ab77608f0c8aaa9d025",
        "lessThan": "cde2c9257cbe8463b9dcf7b1075177b72b5fd938",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e28b7b94408897e41c63477aabc9e1db439bc8c",
        "lessThan": "7164d78559b0ff29931a366a840a9e5dd53d4b7c",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/drm_gem.c"
    ],
    "versions": [
      {
        "version": "6.18.32",
        "lessThan": "6.18.35",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "7.0.9",
        "lessThan": "7.0.12",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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05 Aug 2026 12:36Current
CVSS 3.18.8
EPSS0.00173
45