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CVE Record

CVE-2025-22098: drm: zynqmp_dp: Fix a deadlock in zynqmp_dp_ignore_hpd_set()

In the Linux kernel, the following vulnerability has been resolved: drm: zynqmp_dp: Fix a deadlock in zynqmp_dp_ignore_hpd_set() Instead of attempting the same mutex twice, lock and unlock it. This bug has been detected by the Clang thread-safety analyzer.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-22098 is a Linux kernel bug in the zynqmp DisplayPort DRM driver that can cause a deadlock. The public record does not provide a CVSS score, exploit report, or broad impact details. Business urgency is mainly for organizations running affected Linux kernels on hardware that uses this driver.

Executive priority

Treat as targeted operational-risk remediation, not an emergency internet-wide threat. Prioritize embedded, appliance, or display systems using the affected driver. If those systems support critical operations, schedule kernel updates promptly after compatibility testing.

Technical view

The bug is in zynqmp_dp_ignore_hpd_set(), where code attempted to take the same mutex twice instead of locking and unlocking it. The issue was found by the Clang thread-safety analyzer and fixed in referenced Linux stable commits. Impact appears availability-related, but public details are limited.

Likely exposure

Exposure is likely limited to Linux systems using the zynqmp_dp DRM DisplayPort driver, commonly tied to ZynqMP platforms. General Linux servers without this driver or hardware path are less likely to be exposed. Version mapping should be confirmed through kernel or distribution advisories.

Exploitation context

CISA KEV is false, and the provided sources do not report active exploitation or public exploit code. The source record describes a deadlock bug, not a remote code execution issue. Trigger conditions are not fully documented in the supplied sources.

Researcher notes

The CVE record lacks CVSS, CWE, and detailed attack prerequisites. The affected-version data is sparse and should be reconciled against upstream stable commits and downstream distro backports. Avoid assuming exploitability beyond the documented deadlock condition.

Mitigation direction

  • Check Linux vendor or distribution advisories for fixed kernel packages.
  • Update to a kernel containing the referenced stable fixes.
  • For custom kernels, review and apply the relevant upstream stable commits.
  • Prioritize systems with zynqmp_dp enabled or ZynqMP DisplayPort hardware in use.

Validation and detection

  • Inventory Linux kernel versions across relevant embedded or display-enabled systems.
  • Check whether the zynqmp_dp driver is built, loaded, or in use.
  • Verify kernel source or package changelog includes the referenced fix commits.
  • Monitor affected systems for DisplayPort-related hangs until patched.
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-2025-22098 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux28edaacb821c69241f6c0be6bbd29f7145f1b44f, 28edaacb821c69241f6c0be6bbd29f7145f1b44f, 28edaacb821c69241f6c0be6bbd29f7145f1b44funaffected
LinuxLinux6.13, 0, 6.13.11, 6.14.2, 6.15affected
Weakness

CWE details

No CWE listed

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