media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path (CVE-2026-90238) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90238

media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path

Answer in brief

CVE-2026-90238 records a Unknown severity vulnerability in media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path. 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 Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3 <74669cc3483e9729ca26b4e06a096ccdd607db64 \|\| >=4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3 <ef46d80a7015269a98c9505b5912a83798799199	74669cc3483e9729ca26b4e06a096ccdd607db64, ef46d80a7015269a98c9505b5912a83798799199
Linux/Linuxgeneric	7.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 74669cc3483e9729ca26b4e06a096ccdd607db64 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path isp4sd_pwron_and_init() holds ops_mutex via guard(mutex) and, on any init failure, jumps to err_deinit and calls isp4sd_pwroff_and_deinit(). That helper takes the same ops_mutex, re-acquiring a non-recursive mutex already held by the current thread, so any init failure deadlocks. Unwind the error path in stages instead, releasing only what each failure point acquired. This also avoids the issues that an unconditional teardown would hit at the earlier failures, such as a runtime-PM underflow from pm_runtime_resume_and_get() and MMIO access while the device is unpowered.

Quoted source text, attributed separately from HOL analysis.