net: qrtr: fix node refcount leak on ctrl packet alloc failure
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97440
- 2026-10-03 Alias added: GHSA-x3xx-p253-pwh4
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/78d066ecac9ce50441d4affae0df2093c4c3e62e
- https://git.kernel.org/stable/c/f3e90fbcd2d5ec1632bc2e8cdd1218f56bcb5fcf
- https://git.kernel.org/stable/c/c3515740174b778d0ee44acc477b51a6478da6b8
- https://git.kernel.org/stable/c/f76a39c45182d9137e053081cee9f2c197404ce6
- https://git.kernel.org/stable/c/477353db343663d5502ca442c6de785d2f23f273
- https://git.kernel.org/stable/c/9d969c98732a4d42212ec580dd5bbad53f246103
- https://git.kernel.org/stable/c/3b09ff54114566864eea59020f6b69c5bb325b9d
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Sources
- CVE-2026-97440 · CVE Program
- CVE-2026-97440 · NVD
- FIRST EPSS
- GHSA-x3xx-p253-pwh4 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97440 · Red Hat security data · CC BY 4.0
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