NULL pointer dereference in Linux kernel synaptics-rmi4 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
- Partial Red Hat: 6 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
The Input synaptics-rmi4 driver in the Linux kernel is affected from version 4.6 until the fixed versions listed in the solution. Transport drivers such as rmi_i2c and rmi_spi send power management calls to an rmi_dev that failed to bind, and no driver data is attached to it. Locking a mutex in the resulting NULL pointer dereference causes a general protection fault in the kernel.
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: Input: synaptics-rmi4 - fix GPF in suspend and resume when unbound Transport drivers (such as rmi_i2c and rmi_spi) invoke rmi_driver_suspend() and rmi_driver_resume() on their child rmi_dev device during system power management events. However, transport drivers are fully registered and operational even if the physical RMI driver failed to bind or probe the rmi_dev device. When rmi_driver_suspend() or rmi_driver_resume() is called on an unbound rmi_dev, dev_get_drvdata() returns NULL. Calling rmi_disable_irq() or rmi_enable_irq() without driver data attached causes a NULL pointer dereference and General Protection Fault when attempting to lock data->enabled_mutex. Fix this by checking if driver data is attached to rmi_dev in rmi_driver_suspend() and rmi_driver_resume(), exiting early if no driver data is present.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Fixed Linux kernel versions are 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8 and 7.3. Red Hat lists no planned fix for Red Hat Enterprise Linux 7, 8, 9 and 10 or Red Hat OpenShift Container Platform 4 and 5.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8, 7.3
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 7 | 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: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-06 Threatist record created from CVE-2026-98202
- 2026-10-06 Alias added: GHSA-4pg4-5mfg-2p8v
- 2026-10-09 Affected versions changed · Red Hat
- 2026-10-09 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/7a3d7c68aa36f68e2a4824da4782c0e5d7c4eba4
- https://git.kernel.org/stable/c/fafca210631d8c2d4311bdfccc5ec46b9fe65977
- https://git.kernel.org/stable/c/84145a4a1dc58f8959811913c5f61f3235dd9f6c
- https://git.kernel.org/stable/c/e2b6703465c1ce43edb91c1626604b7092b3c431
- https://git.kernel.org/stable/c/30366f507ce3e408caf7f7375bb343df54b9a4f9
- https://git.kernel.org/stable/c/fa1713dc3d43d028d6cb66e5659d9d7e83b73362
- https://git.kernel.org/stable/c/942b06a19252908d0f952c0590caf20e47f88252
- https://git.kernel.org/stable/c/fe10579b6dc3f0dac61e51e1797cacbba5039ac2
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Sources
- CVE-2026-98202 · CVE Program
- CVE-2026-98202 · NVD
- FIRST EPSS
- GHSA-4pg4-5mfg-2p8v · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98202 · 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