wifi: rtw88: pci: fix resource leak on failed NAPI setup (CVE-2026-80940) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80940

wifi: rtw88: pci: fix resource leak on failed NAPI setup

Answer in brief

CVE-2026-80940 records a Unknown severity vulnerability in wifi: rtw88: pci: fix resource leak on failed NAPI setup. 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 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 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	>=d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <481fff9bda01720c70b19fb260808145a3f21594 \|\| >=d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <34a505071d1ffc5ebf3dc3cd16d2a12b044bcc84 \|\| >=d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <b1596e212ab1739930b25b9d3daf6b5cd307b537 \|\| >=d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <e779df4806cd29cbcca5c9dc0a1073662c76b889	481fff9bda01720c70b19fb260808145a3f21594, 34a505071d1ffc5ebf3dc3cd16d2a12b044bcc84, b1596e212ab1739930b25b9d3daf6b5cd307b537, e779df4806cd29cbcca5c9dc0a1073662c76b889
Linux/Linuxgeneric	6.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 481fff9bda01720c70b19fb260808145a3f21594 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: pci: fix resource leak on failed NAPI setup rtw_pci_probe() allocates PCI resources through rtw_pci_setup_resource() before it sets up NAPI. If rtw_pci_napi_init() fails, the error path jumps straight to err_pci_declaim and skips rtw_pci_destroy(), leaving the PCI resources allocated by rtw_pci_setup_resource() behind. Add a dedicated cleanup label for the NAPI setup failure path so probe destroys the PCI resources. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing current mainline kernels. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have a suitable rtw88 PCI board to test with, no runtime testing was able to be performed.

Quoted source text, attributed separately from HOL analysis.