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CVE Record

CVE-2023-52913: drm/i915: Fix potential context UAFs

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential context UAFs gem_context_register() makes the context visible to userspace, and which point a separate thread can trigger the I915_GEM_CONTEXT_DESTROY ioctl. So we need to ensure that nothing uses the ctx ptr after this. And we need to ensure that adding the ctx to the xarray is the *last* thing that gem_context_register() does with the ctx pointer. [tursulin: Stable and fixes tags add/tidy.] (cherry picked from commit bed4b455cf5374e68879be56971c1da563bcd90c)

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-52913 is a Linux kernel flaw in the Intel i915 graphics driver. A local user could potentially trigger a use-after-free race and gain high-impact control over confidentiality, integrity, or availability. It is not a remote internet-facing bug based on the provided CVSS vector.

Executive priority

Prioritize patching on multi-user Linux workstations, shared engineering systems, and endpoints with untrusted local users. Treat as high severity, but not as an internet-wide emergency based on current source evidence.

Technical view

The issue is in drm/i915 gem_context_register(). The context becomes visible to userspace before the function finishes using the ctx pointer. Another thread can call I915_GEM_CONTEXT_DESTROY, creating potential context use-after-free. The fix ensures adding the context to the xarray is the last operation using that pointer.

Likely exposure

Linux systems using affected kernel builds with the i915 DRM driver are the relevant exposure. The source lists Linux kernel affected entries including 5.10, 5.15.171, 6.1.7, and 6.2 data; validate exact exposure through your distribution’s kernel advisories.

Exploitation context

The CVSS vector is local, low complexity, low privileges, and no user interaction. The source bundle does not show CISA KEV listing or active exploitation. Exploitation would require local access to a vulnerable system and access to the affected driver path.

Researcher notes

The public description identifies a race between context registration visibility and context destruction. The referenced stable commits are the primary technical sources. No CWE, exploit proof, or distribution-specific fixed package list is provided in the bundle.

Mitigation direction

  • Apply a vendor kernel update containing the referenced upstream stable fixes.
  • Check Linux distribution advisories for CVE-2023-52913-specific package versions.
  • If updates are delayed, reduce untrusted local shell or desktop access where feasible.
  • Reboot into the updated kernel after patch installation.

Validation and detection

  • Inventory Linux hosts and identify kernel versions in use.
  • Confirm whether the i915 DRM driver is present or loaded.
  • Compare installed kernel packages against distribution advisories for this CVE.
  • Verify the running kernel is the updated kernel after reboot.
  • Record systems without vendor-confirmed fixed builds for follow-up.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-52913 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2023-52913Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxeb4dedae920a07c485328af3da2202ec5184fb17, eb4dedae920a07c485328af3da2202ec5184fb17, eb4dedae920a07c485328af3da2202ec5184fb17unaffected
LinuxLinux5.10, 0, 5.15.171, 6.1.7, 6.2affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.