CVE-2026-52950 (GCVE-0-2026-52950)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-08-05 12:31
VLAI
Title
drm/xe/dma-buf: fix UAF with retry loop
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init do the alloc for us. This should make the retry safe. Reported by Sashiko. v2: Fix up the error unwind (CI) (cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-825 - Expired Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 , < 39fdac6be02eb7c3460518c1c4085f75f935c4ce (git)
Affected: eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 , < 827062952ed9bdf4220466c1f05ce452d04bdedf (git)
Affected: eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 , < 155a372a1cc50fa93387c5d3cdfd614a61e1afd1 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:6.12.0-211.37.1.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-687.30.1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
    cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-07-24T16:01:54+00:00",
      "cve": "CVE-2026-52950",
      "id": "CVE-2026-52950",
      "initial_release_date": "2026-06-24T00:00:00+00:00",
      "product_status:fixed": "612",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/xe/dma-buf: fix UAF with retry loop",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-23T01:00:00Z",
      "cve": "CVE-2026-52950",
      "id": "CVE-2026-52950",
      "initial_release_date": "2026-06-26T02:14:56Z",
      "product_status:known_affected": "72",
      "product_status:known_not_affected": "223",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-52950",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-52950.json",
      "version": "4"
    }
  }
}



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Tags
Taxonomy of the tags.





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.