CVE-2026-64050 (GCVE-0-2026-64050)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:39 – Updated: 2026-07-20 13:42
VLAI
Title
drm/msm/dpu: don't mix devm and drmm functions
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: don't mix devm and drmm functions Mixing devm and drmm functions will result in a use-after-free on msm driver teardown if userspace keeps a reference on the drm device: The WB connector data will be destroyed because of the use of devm_kzalloc()), while the usersoace still can try interacting with the WB connector (which uses drmm_ functions). Change dpu_writeback_init() to use drmm_. Patchwork: https://patchwork.freedesktop.org/patch/722656/
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b , < ff58e5ef1b46ce614af048d2d04986df05ffab90 (git)
Affected: 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b , < 95048a12f48c627bc2ccc4d84f87640630ba2bdb (git)
Affected: 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b , < c0c70a11365cba7fba25a77463582bcec0f7846e (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2026-64050",
      "id": "CVE-2026-64050",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: drm/msm/dpu: don\u0027t mix devm and drmm functions",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64050.json",
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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

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.


Detection rules are retrieved from Rulezet.