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CVE Record

CVE-2024-57887: drm: adv7511: Fix use-after-free in adv7533_attach_dsi()

In the Linux kernel, the following vulnerability has been resolved: drm: adv7511: Fix use-after-free in adv7533_attach_dsi() The host_node pointer was assigned and freed in adv7533_parse_dt(), and later, adv7533_attach_dsi() uses the same. Fix this use-after-free issue by dropping of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove().

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 display-bridge driver can reuse a device-tree reference after it has been released, creating a use-after-free condition. The supplied CVSS assessment assumes a local, low-privileged attacker and rates possible confidentiality, integrity, and availability impact as high. Exposure is hardware and configuration dependent.

Executive priority

Treat this as a targeted high-priority kernel update for systems using the affected display bridge, especially embedded or appliance fleets. It is not supported as an internet-wide emergency: exploitation requires local access according to CVSS, exposure is configuration dependent, and the supplied evidence does not show active exploitation.

Technical view

In adv7533_parse_dt(), host_node was assigned and prematurely released with of_node_put(). adv7533_attach_dsi() later reused that pointer. The upstream correction retains the reference until probe failure or device removal, preventing the stale-pointer access in the ADV7533 attachment lifecycle.

Likely exposure

Likely exposure is limited to affected Linux kernels using the ADV7511/ADV7533 DRM bridge path with relevant hardware and device-tree configuration. Systems without this driver path are unlikely to be reachable. The supplied version list is ambiguous, so patch presence and distribution guidance are more reliable than version-string matching alone.

Exploitation context

CISA KEV status is false, and the supplied sources do not report active exploitation, a public proof of concept, or a demonstrated attack chain. The CVSS vector describes local access, low privileges, low complexity, and no user interaction; actual reachability still depends on the affected driver lifecycle being exercised.

Researcher notes

This is CWE-416 involving device-tree node reference ownership. Review should confirm host_node remains referenced after parsing and is released on probe failure and removal. The supplied affected-version data mixes releases and commit identifiers and should not be treated as a precise range; compare downstream source or vendor backport records with the referenced stable commits.

Mitigation direction

  • Install a vendor-supported kernel containing the referenced ADV7533 use-after-free correction.
  • Prioritize affected embedded, appliance, and display-enabled systems where the ADV7533 driver path is active.
  • If immediate updating is impossible, consult vendor guidance about safely disabling the unused affected driver or hardware path.
  • Track downstream distribution advisories because packaged kernel versions may backport the fix without changing major release numbers.

Validation and detection

  • Inventory running kernel builds and identify systems using ADV7511 or ADV7533 DRM bridge support.
  • Check device-tree configuration and deployed hardware to determine whether the ADV7533 attachment path is reachable.
  • Verify the vendor kernel changelog or source contains the host_node lifetime correction referenced by upstream commits.
  • After updating, confirm the intended kernel is running and the affected display hardware initializes and removes normally.
Prepared
Confidence
high
Sources
9

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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cwe · low confidence lookup

CWE-416: Exact CWE lookup

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cve · low confidence lookup

CVE-2024-57887 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.

2CVSS vectors
3Timeline events
2ADP providers
8Source links

SSVC decision data

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

CVSS vector scores

2 official scores

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
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-2024-57887Attack 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
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1e4d58cd7f888522d16f221d628356befbb08468, 1e4d58cd7f888522d16f221d628356befbb08468, 1e4d58cd7f888522d16f221d628356befbb08468, 1e4d58cd7f888522d16f221d628356befbb08468, 1e4d58cd7f888522d16f221d628356befbb08468unaffected
LinuxLinux4.8, 0, 5.10.234, 6.1.125, 6.6.70, 6.12.9, 6.13affected
Weakness

CWE details

CWE-416

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

CWE-416 · source CWE mapping

Use After Free

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

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