Unknown severity · Source severity not reportedCVE-2026-98605

drm/bridge: samsung-dsim: fix TE GPIO lifetime for host attachCVE-2026-98605

Answer in brief

CVE-2026-98605 records a Unknown severity vulnerability in drm/bridge: samsung-dsim: fix TE GPIO lifetime for host attach. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 18, 2026Updated Oct 18, 2026Source checked Oct 18, 2026First seen by HOL Oct 18, 2026Material review Oct 18, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=e7447128ca4a250374d6721ee98e3e3cf99551a6 <77a43e00c57486a5212ef22d4665cafad62a5d4b \|\| >=e7447128ca4a250374d6721ee98e3e3cf99551a6 <5759bbef951c39d264ac0f47daa4137d01403aea \|\| >=e7447128ca4a250374d6721ee98e3e3cf99551a6 <ebffd70e4877bb7554974cf975a27872f2bb225f \|\| >=e7447128ca4a250374d6721ee98e3e3cf99551a6 <9b796251c3cca45a33a5c859c6818c58aa982277 \|\| >=e7447128ca4a250374d6721ee98e3e3cf99551a6 <ada667890773e033d2f40dc94176e3beb930b516	77a43e00c57486a5212ef22d4665cafad62a5d4b, 5759bbef951c39d264ac0f47daa4137d01403aea, ebffd70e4877bb7554974cf975a27872f2bb225f, 9b796251c3cca45a33a5c859c6818c58aa982277, ada667890773e033d2f40dc94176e3beb930b516
Linux/Linuxgeneric	6.4	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 77a43e00c57486a5212ef22d4665cafad62a5d4b if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 18, 2026

Sources and claim methodology

Upstream source description

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]

Quoted source text, attributed separately from HOL analysis.