Vulnerability in Linux

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3743

  Linux Kernel: Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-98221CVE-2026-98181CVE-2026-98248+204 more CVEs

[ References ]References

• git.kernel.org/stable/c/30366f507ce3e408caf7f7375bb343df54b9a4f9
• git.kernel.org/stable/c/7a3d7c68aa36f68e2a4824da4782c0e5d7c4eba4
• git.kernel.org/stable/c/84145a4a1dc58f8959811913c5f61f3235dd9f6c
• git.kernel.org/stable/c/942b06a19252908d0f952c0590caf20e47f88252
• git.kernel.org/stable/c/e2b6703465c1ce43edb91c1626604b7092b3c431
• git.kernel.org/stable/c/fa1713dc3d43d028d6cb66e5659d9d7e83b73362
• git.kernel.org/stable/c/fafca210631d8c2d4311bdfccc5ec46b9fe65977
• git.kernel.org/stable/c/fe10579b6dc3f0dac61e51e1797cacbba5039ac2