Runtime PM underflow in Linux kxcjk-1013 accelerometer 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 IIO kxcjk-1013 accelerometer driver from 3.18 is affected. The IIO core does not filter duplicate writes to the event enable attribute, so a repeated disable request drops a runtime PM reference that was never acquired for it. This can underflow the runtime PM usage count and trigger a "Runtime PM usage count underflow" warning.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxcjk-1013: reject duplicate event disable The IIO core does not filter duplicate writes to the event enable attribute. kxcjk1013_write_event_config() already ignores repeated enable requests, but a repeated disable request still calls kxcjk1013_set_power_state(data, false), dropping a runtime PM reference that was not acquired for this request. This can underflow the runtime PM usage count and trigger a "Runtime PM usage count underflow" warning. Return early when the requested state already matches ev_enable_state.
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 | 3.18 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 3.18 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
Update the Linux kernel to a fixed version: 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10 or 7.3.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
- 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: Low. 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-2026-98679
- 2026-10-18 Alias added: GHSA-jg4r-9rqj-mgw5
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@137c35cff4d4d69f73cbfc0bf7870bf379a7a364, Linux/[email protected] · 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@2f9f88da802733bab7a87a0e685c8cfa7488f6ac, Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-30 3 new references · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/b33dfdc0f22dd6c9cb9ae34a32723ef0a5d2ccf5
- https://git.kernel.org/stable/c/8c6d1abaff5dbbe2d2b7529de7f1f2395a2f07e9
- https://git.kernel.org/stable/c/2f9f88da802733bab7a87a0e685c8cfa7488f6ac
- https://git.kernel.org/stable/c/137c35cff4d4d69f73cbfc0bf7870bf379a7a364
- https://git.kernel.org/stable/c/ad690c0c1b9131725619e352cb7c970488cbf436
- https://git.kernel.org/stable/c/3365209e758c845a197211645731f0e393a86012
- https://git.kernel.org/stable/c/aa94a37b5a3e560c277dac6f9e5d0d75549a6583
- https://git.kernel.org/stable/c/dd30c10ff60d2b30386c23bb7c61cc97f2385c97
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- 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-2026-98679 · CVE Program
- CVE-2026-98679 · NVD
- FIRST EPSS
- GHSA-jg4r-9rqj-mgw5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98679 · 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