CVE-2026-53135 (GCVE-0-2026-53135)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38
VLAI
Title
drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs [Why & How] dp_sdp_message_debugfs_write() dereferences connector->base.state->crtc without checking for NULL. A connector can be connected but not bound to any CRTC (e.g. after hot-plug before the next atomic commit), causing a kernel crash when writing to the sdp_message debugfs node. The function also ignores the user-provided size argument and always passes 36 bytes to copy_from_user(), reading past the user buffer when size < 36. Fix both issues by: - Returning -ENODEV when connector->base.state or state->crtc is NULL - Clamping write_size to min(size, sizeof(data)) (cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < ee9cfcf77a8e8af637396dc00966df5f701e661c (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < b781f90a9528555c709e59789550893581ef0be4 (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < a2de1d71891a038a9346b2c1a72b88c8350f2479 (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < 7fc4fab4acc307ad2903312c195872b2953d32c3 (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < 7ae95c0275c330b5dbae806f8e431720edad776f (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < bb6f705b73b5f191f14ad004e2c8c4b615806187 (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < c90954cdea4d6998ec345de0d840d030c145b89e (git)
Affected: c7ba3653e9773256b2b08508a2ed2ca28ea7566b , < adf67034b1f61f7119295208085bfd43f85f56af (git)
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Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-06-09T07:44:35.387Z",
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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.