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CVE-2026-98605

drm/bridge: samsung-dsim: fix TE GPIO lifetime for host attach

CVSS score

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EPSS probability

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Risk score

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Published

22 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-98605 vulnerability in Linux kernel samsung-dsim driver

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

A TE GPIO lifecycle management vulnerability exists in the Linux kernel drm/bridge: samsung-dsim component. During the driver generalization, incorrect GPIO acquisition functions led to resource management issues during host detach and reattach cycles.

Why does it matter?

This vulnerability causes resource management and lifecycle inconsistencies within the display bridge driver in the Linux kernel, potentially affecting system stability.

What should be done?

  • Follow vendor advisories and stable kernel updates
  • Verify the usage of non-managed gpiod_get_optional() in the driver code
Chain of evidence and sources2 verified claims

Linux çekirdeği samsung-dsim sürücüsünde TE GPIO yaşam döngüsü yönetimi hatalıdır.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Yönetilen ve yönetilmeyen GPIO fonksiyonlarının uyumsuz kombinasyonu ikinci bağlantıda sorun yaratır.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd
Show the technical text from the sources

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: samsung-dsim: fix TE GPIO lifetime for host attach When the Exynos DSI driver was generalized into samsung-dsim, the TE GPIO acquisition was switched from gpiod_get_optional() to devm_gpiod_get_optional() while keeping the matching gpiod_put() calls. That combination is wrong for a managed descriptor. However, dropping the puts and keeping the managed get is also wrong: samsung_dsim_register_te_irq() runs from the DSI host attach callback, and host detach/reattach can happen without destroying the device that owns the managed action. A second attach would then request the GPIO again without having released it. Switch back to a non-managed gpiod_get_optional() and keep the explicit gpiod_put() on the request_irq() error path and in samsung_dsim_unregister_te_irq(). [Luca: remove unnecessary comment]

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-98605 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1linuxLinux View
2linuxLinux View
Total affected vendors: 1|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
The sources have not yet published a verified CVSS metric.

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

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Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-98605 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-20: Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-98605 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Official Sources and Advisories

https://git.kernel.org/stable/c/77a43e00c57486a5212ef22d4665cafad62a5d4bvendor-advisoryhttps://git.kernel.org/stable/c/5759bbef951c39d264ac0f47daa4137d01403aeavendor-advisoryhttps://git.kernel.org/stable/c/ebffd70e4877bb7554974cf975a27872f2bb225fvendor-advisoryhttps://git.kernel.org/stable/c/9b796251c3cca45a33a5c859c6818c58aa982277vendor-advisoryhttps://git.kernel.org/stable/c/ada667890773e033d2f40dc94176e3beb930b516vendor-advisory

Yama durumu bilinmiyor

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