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CVE Record

CVE-2024-35951: drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr()

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() Subject: [PATCH] drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier, otherwise we will end up with unbalanced get/put_pages() calls. We should instead leave everything in place and let the BO release function deal with extra cleanup when the object is destroyed, or let the fault handler try again next time it's called.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux Panfrost graphics-driver cleanup error can unbalance memory-page references when allocation fails during fault handling. The supplied CVSS rates potential confidentiality, integrity, and availability impact as high, requiring local low-privileged access. The source bundle does not establish a practical compromise method.

Executive priority

Treat as a high-priority kernel update where Panfrost is active and untrusted users or workloads have local access. Broader emergency action is not supported by the supplied evidence because active exploitation is unconfirmed and exposure depends on a specific driver path.

Technical view

In panfrost_mmu_map_fault_addr(), failed page or SGT allocation could incorrectly release previously acquired page references, producing unmatched get_pages()/put_pages() calls. The fix preserves allocations and lets object destruction perform cleanup, or allows a later fault-handler retry.

Likely exposure

Exposure is limited to Linux systems using the Panfrost driver where the affected MMU fault and allocation-failure path is reachable. The supplied version metadata lists 5.4, 6.6.28, 6.8.7, and 6.9, but lacks sufficient range context for precise distribution-level conclusions.

Exploitation context

The CVSS vector describes a local, low-complexity attack requiring low privileges and no user interaction. This CVE is not marked as CISA KEV, and the supplied sources provide no evidence of active exploitation, public weaponization, or a proven exploit primitive.

Researcher notes

The trigger involves allocation failure inside Panfrost MMU fault mapping. The faulty path releases page references acquired earlier; corrected behavior defers cleanup to buffer-object destruction or retries later. Sources do not establish whether this yields use-after-free, privilege escalation, or another reliable exploitation primitive. Distribution backport status requires separate vendor confirmation.

Mitigation direction

  • Update to a vendor-supported kernel containing the applicable cited stable fix.
  • Consult the Linux distribution or device vendor for exact affected and corrected package versions.
  • Prioritize systems that load Panfrost and permit access by untrusted local users or workloads.
  • Restrict unnecessary local access while updates are evaluated and deployed.

Validation and detection

  • Inventory kernel versions and determine which systems load or depend on the Panfrost driver.
  • Map vendor kernel packages to the cited stable fix commits or vendor advisories.
  • Confirm the replacement kernel is active after updating, including following any required reboot.
  • Review vendor security guidance because the supplied version ranges are incomplete.
Prepared
Confidence
medium
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-2024-35951 mapping review

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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
2ADP 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-2024-35951Attack 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
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux187d2929206e6b098312c174ea873e4cedf5420d, 187d2929206e6b098312c174ea873e4cedf5420d, 187d2929206e6b098312c174ea873e4cedf5420dunaffected
LinuxLinux5.4, 0, 6.6.28, 6.8.7, 6.9affected
Weakness

CWE details

No CWE listed

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