Parent socket leak in Linux kernel Bluetooth ISO connection setup
Key facts
- Attack vector
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- 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: 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
The Linux kernel Bluetooth ISO code is affected in versions from 6.6.67 before 6.6.158 and from 6.8. When socket setup fails in iso_conn_ready(), a reference to the parent socket is not released, which leaks the parent socket itself.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix parent socket leak in iso_conn_ready() iso_get_sock() returns the parent socket with a reference held, which is dropped by sock_put() once the child socket has been set up. The error path taken when iso_sock_alloc() fails only calls release_sock() and returns, leaking the reference and thus the parent socket itself. Drop the reference on that path as well.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
The fixed Linux kernel versions are 6.6.158, 6.12.112, 6.18.54, 7.2.8 and 7.3. Red Hat lists Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 and Red Hat OpenShift Container Platform 5 as affected without a fix, with the plan none_available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 6.6.158
- Fix · CNA Linux (Linux) Fixed in 6.6.158, 6.12.112, 6.18.54, 7.2.8, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 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: 5 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-06 Threatist record created from CVE-2026-98293
- 2026-10-06 Alias added: GHSA-m9gh-q95c-rcfx
- 2026-10-11 Affected versions changed · Red Hat
- 2026-10-11 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/ea8a262662be62c095789924c11722ecbf40a4de
- https://git.kernel.org/stable/c/9228f87365e68a6cae191f57f456e89a6d2167cf
- https://git.kernel.org/stable/c/e2b156a8d25966be49c1f809b654a2c4bb16564d
- https://git.kernel.org/stable/c/f016daabd4fec4e9b8563f8b6f42eabce0ca66b0
- https://git.kernel.org/stable/c/ca18ee413a7cb6f09885778039225e58bae0d607
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Sources
- CVE-2026-98293 · CVE Program
- CVE-2026-98293 · NVD
- FIRST EPSS
- GHSA-m9gh-q95c-rcfx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98293 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences