gpu: host1x: Fix iommu_map_sgtable() return value check (CVE-2026-74380) | HOL Guard CVE

High · CVSS 8.8CVE-2026-74380

gpu: host1x: Fix iommu_map_sgtable() return value check

Answer in brief

CVE-2026-74380 records a High severity (CVSS 8.8) vulnerability in gpu: host1x: Fix iommu_map_sgtable() return value check. 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 Aug 15, 2026Updated Aug 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.8. 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	>=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <5f3985c2a500df3126cb12a2e0ccf26a40bc495d \|\| >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <3ac173e46ef6fda9c9df8d47cdff4df962df9728 \|\| >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <2a68928c445138961e2c451983b473aeb3f5b999 \|\| >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <79240eee5a40014d9edfabe19f06b35ffa84e5f8 \|\| >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <e024c7993d839503d6c1f0044b8fc537c30300e9 \|\| >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <18f74762013a4b6aa6f905c4459e0f506f9c5c7b	5f3985c2a500df3126cb12a2e0ccf26a40bc495d, 3ac173e46ef6fda9c9df8d47cdff4df962df9728, 2a68928c445138961e2c451983b473aeb3f5b999, 79240eee5a40014d9edfabe19f06b35ffa84e5f8, e024c7993d839503d6c1f0044b8fc537c30300e9, 18f74762013a4b6aa6f905c4459e0f506f9c5c7b
Linux/Linuxgeneric	5.15	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 5f3985c2a500df3126cb12a2e0ccf26a40bc495d if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix iommu_map_sgtable() return value check Commit "iommu: return full error code from iommu_map_sg[_atomic]()" changed iommu_map_sgtable() to return an ssize_t and negative values in error cases, rather than a size_t and a zero. pin_job() also was incorrectly assigning to 'int', which could cause overflows into negative values. Update pin_job() to correctly check for errors from iommu_map_sgtable.

Quoted source text, attributed separately from HOL analysis.