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CVE-2023-53833 (GCVE-0-2023-53833)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2026-05-11 19:52
VLAI
Title
drm/i915: Fix NULL ptr deref by checking new_crtc_state
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix NULL ptr deref by checking new_crtc_state intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't obtained previously with intel_atomic_get_crtc_state, so we must check it for NULLness here, just as in many other places, where we can't guarantee that intel_atomic_get_crtc_state was called. We are currently getting NULL ptr deref because of that, so this fix was confirmed to help. (cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 74a75dc908692dd0548209004e53832c02433c0c , < dbf25cc21beff4fd2e730573845a266504b21bb2 (git)
Affected: 74a75dc908692dd0548209004e53832c02433c0c , < 8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88 (git)
Affected: 74a75dc908692dd0548209004e53832c02433c0c , < a41d985902c153c31c616fe183cf2ee331e95ecb (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic_plane.c"
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix NULL ptr deref by checking new_crtc_state\n\nintel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn\u0027t\nobtained previously with intel_atomic_get_crtc_state, so we must check it\nfor NULLness here, just as in many other places, where we can\u0027t guarantee\nthat intel_atomic_get_crtc_state was called.\nWe are currently getting NULL ptr deref because of that, so this fix was\nconfirmed to help.\n\n(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:52:25.114Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/a41d985902c153c31c616fe183cf2ee331e95ecb"
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      "title": "drm/i915: Fix NULL ptr deref by checking new_crtc_state",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53833",
    "datePublished": "2025-12-09T01:29:48.637Z",
    "dateReserved": "2025-12-09T01:27:17.825Z",
    "dateUpdated": "2026-05-11T19:52:25.114Z",
    "state": "PUBLISHED"
  },
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    "redhat_vex": {
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      "cve": "CVE-2023-53833",
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      "product_status:fixed": "937",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: drm/i915: Fix NULL ptr deref by checking new_crtc_state",
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      "cve": "CVE-2023-53833",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53833",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53833.json",
      "version": "15"
    }
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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.


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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.