CVE-2026-89816 (GCVE-0-2026-89816)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:30 – Updated: 2026-10-19 08:53
VLAI
Title
drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used Commit 1c6ceeee6ebb ("drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits") fixed a very similar issue when the event was allocated by drm_atomic_helper_setup_commit() itself. However, if the event is allocated in prepare_signaling(), it will also be set to NULL in complete_signaling(), which prevents drm_crtc_commit from being put in __drm_atomic_helper_crtc_destroy_state(). Dropping the reference when the event is set to NULL at complete_signaling() fixes the leak. The leak can be reproduced by sending a signal to the thread using DRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic ioctl to block at drm_atomic_helper_wait_for_fences(). It happened both with amdgpu and vkms.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 24835e442f289813aa568d142a755672a740503c , < c5517b71101f61a45144e3cf77a19626355272de (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < 866a04137dac7e82a3848851061ff7ed15c2847e (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < 6a6a7aae4681a20cd32789fea9a487aaafa0e7a3 (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < e2f27b5ed9084feb7bae9ef2bc80de37c92280b1 (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < ff73f5f43d032c3da3c534c517f661e8dfeb358a (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < 66b1b309886337745d395bbc158440ab196305ce (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < e6195b941fdc8d81fc431c9f25539cf6c6234b51 (git)
Affected: 24835e442f289813aa568d142a755672a740503c , < 4d4be202165e832d74849b4a68e289a2a377039c (git)
Affected: c75fe7899538890109aad7bbf92b2f304389e825 (git)
Affected: 2a3241044b1c4ecc13f73b7158881881fb7534a1 (git)
Affected: 4.9.19 , < 4.10 (semver)
Affected: 4.10.7 , < 4.11 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_atomic_uapi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c5517b71101f61a45144e3cf77a19626355272de",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "866a04137dac7e82a3848851061ff7ed15c2847e",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "6a6a7aae4681a20cd32789fea9a487aaafa0e7a3",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "e2f27b5ed9084feb7bae9ef2bc80de37c92280b1",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "ff73f5f43d032c3da3c534c517f661e8dfeb358a",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "66b1b309886337745d395bbc158440ab196305ce",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "e6195b941fdc8d81fc431c9f25539cf6c6234b51",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "lessThan": "4d4be202165e832d74849b4a68e289a2a377039c",
              "status": "affected",
              "version": "24835e442f289813aa568d142a755672a740503c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c75fe7899538890109aad7bbf92b2f304389e825",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a3241044b1c4ecc13f73b7158881881fb7534a1",
              "versionType": "git"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.19",
              "versionType": "semver"
            },
            {
              "lessThan": "4.11",
              "status": "affected",
              "version": "4.10.7",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_atomic_uapi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.11"
            },
            {
              "lessThan": "4.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.9.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.10.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used\n\nCommit 1c6ceeee6ebb (\"drm/atomic: Fix memleak on ERESTARTSYS during\nnon-blocking commits\") fixed a very similar issue when the event was\nallocated by drm_atomic_helper_setup_commit() itself.\n\nHowever, if the event is allocated in prepare_signaling(), it will also be\nset to NULL in complete_signaling(), which prevents drm_crtc_commit from\nbeing put in __drm_atomic_helper_crtc_destroy_state().\n\nDropping the reference when the event is set to NULL at\ncomplete_signaling() fixes the leak.\n\nThe leak can be reproduced by sending a signal to the thread using\nDRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic\nioctl to block at drm_atomic_helper_wait_for_fences(). It happened both\nwith amdgpu and vkms."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:53:10.436Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c5517b71101f61a45144e3cf77a19626355272de"
        },
        {
          "url": "https://git.kernel.org/stable/c/866a04137dac7e82a3848851061ff7ed15c2847e"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a6a7aae4681a20cd32789fea9a487aaafa0e7a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2f27b5ed9084feb7bae9ef2bc80de37c92280b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff73f5f43d032c3da3c534c517f661e8dfeb358a"
        },
        {
          "url": "https://git.kernel.org/stable/c/66b1b309886337745d395bbc158440ab196305ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6195b941fdc8d81fc431c9f25539cf6c6234b51"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d4be202165e832d74849b4a68e289a2a377039c"
        }
      ],
      "title": "drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89816",
    "datePublished": "2026-09-16T10:30:49.052Z",
    "dateReserved": "2026-09-11T19:38:34.768Z",
    "dateUpdated": "2026-10-19T08:53:10.436Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89816",
      "date": "2026-10-24",
      "epss": "0.0021",
      "percentile": "0.10751"
    },
    "microsoft_vex": {
      "current_release_date": "2026-10-21T18:39:09.000Z",
      "cve": "CVE-2026-89816",
      "id": "msrc_CVE-2026-89816",
      "initial_release_date": "2026-09-17T01:08:22.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "2",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89816.json",
      "version": "6"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/drm_atomic_uapi.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "c5517b71101f61a45144e3cf77a19626355272de",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "866a04137dac7e82a3848851061ff7ed15c2847e",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6a6a7aae4681a20cd32789fea9a487aaafa0e7a3",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e2f27b5ed9084feb7bae9ef2bc80de37c92280b1",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ff73f5f43d032c3da3c534c517f661e8dfeb358a",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "66b1b309886337745d395bbc158440ab196305ce",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e6195b941fdc8d81fc431c9f25539cf6c6234b51",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4d4be202165e832d74849b4a68e289a2a377039c",
                    "status": "affected",
                    "version": "24835e442f289813aa568d142a755672a740503c",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "c75fe7899538890109aad7bbf92b2f304389e825",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "2a3241044b1c4ecc13f73b7158881881fb7534a1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4.10",
                    "status": "affected",
                    "version": "4.9.19",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "4.11",
                    "status": "affected",
                    "version": "4.10.7",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/drm_atomic_uapi.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.11"
                  },
                  {
                    "lessThan": "4.11",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.270",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.221",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.188",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.157",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.110",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.51",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.5",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3",
                    "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: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used\n\nCommit 1c6ceeee6ebb (\"drm/atomic: Fix memleak on ERESTARTSYS during\nnon-blocking commits\") fixed a very similar issue when the event was\nallocated by drm_atomic_helper_setup_commit() itself.\n\nHowever, if the event is allocated in prepare_signaling(), it will also be\nset to NULL in complete_signaling(), which prevents drm_crtc_commit from\nbeing put in __drm_atomic_helper_crtc_destroy_state().\n\nDropping the reference when the event is set to NULL at\ncomplete_signaling() fixes the leak.\n\nThe leak can be reproduced by sending a signal to the thread using\nDRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic\nioctl to block at drm_atomic_helper_wait_for_fences(). It happened both\nwith amdgpu and vkms."
          }
        ],
        "id": "CVE-2026-89816",
        "lastModified": "2026-10-19T09:18:25.443",
        "metrics": {},
        "published": "2026-09-16T11:16:46.837",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/4d4be202165e832d74849b4a68e289a2a377039c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/66b1b309886337745d395bbc158440ab196305ce"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/6a6a7aae4681a20cd32789fea9a487aaafa0e7a3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/866a04137dac7e82a3848851061ff7ed15c2847e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c5517b71101f61a45144e3cf77a19626355272de"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e2f27b5ed9084feb7bae9ef2bc80de37c92280b1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e6195b941fdc8d81fc431c9f25539cf6c6234b51"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ff73f5f43d032c3da3c534c517f661e8dfeb358a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-09-29T17:41:26+00:00",
      "cve": "CVE-2026-89816",
      "id": "CVE-2026-89816",
      "initial_release_date": "2026-09-16T00:00:00+00:00",
      "product_status:known_affected": "262",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89816.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-10-20T00:59:23Z",
      "cve": "CVE-2026-89816",
      "id": "CVE-2026-89816",
      "initial_release_date": "2026-09-19T01:44:56Z",
      "product_status:known_affected": "300",
      "product_status:known_not_affected": "48",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-89816",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-89816.json",
      "version": "4"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.