Description (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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before 7a3d7c68aa36f68e2a4824da4782c0e5d7c4eba4; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before fafca210631d8c2d4311bdfccc5ec46b9fe65977; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before 84145a4a1dc58f8959811913c5f61f3235dd9f6c; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before e2b6703465c1ce43edb91c1626604b7092b3c431; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before 30366f507ce3e408caf7f7375bb343df54b9a4f9; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before fa1713dc3d43d028d6cb66e5659d9d7e83b73362; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before 942b06a19252908d0f952c0590caf20e47f88252; affected 2b6a321da9a2d8725a1d3dbb0b2e96a7618ebe56 before fe10579b6dc3f0dac61e51e1797cacbba5039ac2 |
| Linux / Linux | affected 4.6; unaffected 0 before 4.6; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- 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