net: qrtr: fix node refcount leak on ctrl packet alloc failure (CVE-2026-97440) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-97440

net: qrtr: fix node refcount leak on ctrl packet alloc failure

Answer in brief

CVE-2026-97440 records a Unknown severity vulnerability in net: qrtr: fix node refcount leak on ctrl packet alloc failure. The current sources do not mark it as known exploited. The current feed maps 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 24, 2026Updated Sep 24, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
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). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <477353db343663d5502ca442c6de785d2f23f273 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9d969c98732a4d42212ec580dd5bbad53f246103 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3b09ff54114566864eea59020f6b69c5bb325b9d \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	477353db343663d5502ca442c6de785d2f23f273, 9d969c98732a4d42212ec580dd5bbad53f246103, 3b09ff54114566864eea59020f6b69c5bb325b9d, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to 477353db343663d5502ca442c6de785d2f23f273 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix node refcount leak on ctrl packet alloc failure qrtr_send_resume_tx() calls qrtr_node_lookup() which takes a reference on the returned node. If the subsequent call to qrtr_alloc_ctrl_packet() fails due to memory allocation failure, the function returns -ENOMEM without calling qrtr_node_release() to release the node reference. Add qrtr_node_release(node) before returning on the allocation failure path to properly release the reference.

Quoted source text, attributed separately from HOL analysis.