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CVE Record

CVE-2023-52930: drm/i915: Fix potential bit_17 double-free

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential bit_17 double-free A userspace with multiple threads racing I915_GEM_SET_TILING to set the tiling to I915_TILING_NONE could trigger a double free of the bit_17 bitmask. (Or conversely leak memory on the transition to tiled.) Move allocation/free'ing of the bitmask within the section protected by the obj lock. [tursulin: Correct fixes tag and added cc stable.] (cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a local Linux kernel flaw in Intel i915 graphics handling. A low-privileged local user could trigger a race that causes a double free, with potential confidentiality, integrity, and availability impact. It is not remotely exploitable based on the supplied CVSS vector.

Executive priority

Prioritize patching shared Linux systems and endpoints with Intel graphics where untrusted local users or workloads exist. Treat as high priority, but below internet-facing remote-code-execution issues unless GPU access is broadly exposed.

Technical view

The drm/i915 I915_GEM_SET_TILING path could race when multiple userspace threads set tiling to I915_TILING_NONE, causing double-free of the bit_17 bitmask or memory leakage. The fix moves bitmask allocation and free operations inside the object lock.

Likely exposure

Exposure is most relevant on Linux systems using the Intel i915 DRM driver where low-privileged users or workloads can access graphics GEM interfaces. Multi-user desktops, developer workstations, and containerized workloads with GPU device access deserve attention.

Exploitation context

The bundle marks KEV as false and provides no cited evidence of active exploitation. The vulnerability requires local low-privileged access, no user interaction, and a race condition involving concurrent graphics tiling requests.

Researcher notes

The supplied record identifies CWE-415 and CVSS 7.8 local privilege context. Version data appears partly commit-based and partly release-based, so use vendor backport evidence and the linked stable commits for precise remediation mapping.

Mitigation direction

  • Apply vendor or stable Linux kernel updates containing the referenced drm/i915 fix.
  • Check distribution advisories for backported fixes before relying on upstream version numbers.
  • Reduce untrusted local access to systems exposing Intel i915 graphics interfaces until patched.
  • Review GPU device exposure in containers and shared compute environments.

Validation and detection

  • Inventory Linux kernel versions and vendor package changelogs for the referenced fix.
  • Identify systems using Intel i915 DRM graphics support.
  • Confirm which users or workloads can access exposed GPU device nodes.
  • Track remediation evidence through endpoint inventory or kernel package compliance reporting.
Prepared
Confidence
high
Sources
6

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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-415: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-52930 mapping review

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Open ATT&CK lookup
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
5Source links

SSVC decision data

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

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:H1.85.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2023-52930Attack 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
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux2850748ef8763ab46958e43a4d1c445f29eeb37d, 2850748ef8763ab46958e43a4d1c445f29eeb37d, 2850748ef8763ab46958e43a4d1c445f29eeb37d, 2850748ef8763ab46958e43a4d1c445f29eeb37dunaffected
LinuxLinux5.5, 0, 5.10.168, 5.15.93, 6.1.11, 6.2affected
Weakness

CWE details

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

CWE-415 · source CWE mapping

Double Free

Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.