Unprotected debugfs reads in Linux kernel adis16136 gyroscope driver
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
The Linux kernel from 4.16 is affected in the IIO adis16136 gyroscope driver, where the serial_number debugfs file is read without the debugfs_file_get() protection. Removing the driver's debugfs entries does not wait for a read in progress, so unbinding the device frees the iio_dev while that read still uses it.
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: iio: gyro: adis16136: fix unprotected debugfs reads The serial_number file operations are open coded and never call debugfs_file_get(), which debugfs_create_file_unsafe() requires. debugfs_remove_recursive() therefore does not wait for a read in progress, and unbind frees the iio_dev underneath it. Use debugfs_create_file() instead.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.16 and later | 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 4.16 and later Fixed in 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10, 7.3 Patch available CNA
Remediation
Fixed versions of the Linux kernel are 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10 and 7.3.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- 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
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-18 Threatist record created from CVE-2026-98666
- 2026-10-18 Alias added: GHSA-fw25-7hvg-9627
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@b62c3944c006cff85dad881ba2948b2f3ef5a626 · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-23 Affected versions changed · Red Hat
- 2026-10-23 CVSS score added · Red Hat
- 2026-10-30 Fix available: Linux/Linux@3558b125b034003b04e89d0d7b38733a08d3fc49, Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-30 3 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/c325d98b824b61cf7761335c633bfac22ec8e85b
- https://git.kernel.org/stable/c/c8cf798ad3ae0573e83c01c73228f5f46e54f1a0
- https://git.kernel.org/stable/c/3558b125b034003b04e89d0d7b38733a08d3fc49
- https://git.kernel.org/stable/c/b62c3944c006cff85dad881ba2948b2f3ef5a626
- https://git.kernel.org/stable/c/d5b0b62e26d7d30e0e16e2d695f2161f7e92a5a5
- https://git.kernel.org/stable/c/b53dc6e15aead039bc6a5e08060c96786240c81d
- https://git.kernel.org/stable/c/b05e768420352d9051f86c1a1f20f44fa046ba45
- https://git.kernel.org/stable/c/2b498df75d6c29aa3e760127ae0f0003df598b53
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-98666 · CVE Program
- CVE-2026-98666 · NVD
- FIRST EPSS
- GHSA-fw25-7hvg-9627 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98666 · 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