iio: proximity: pulsedlight: fix iio_device left registered on PM setup failure

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: proximity: pulsedlight: fix iio_device left registered on PM setup failure pm_runtime_set_active() failing in probe() jumps to error_unreg_buffer, which only calls iio_triggered_buffer_cleanup() -- it does not undo the iio_device_register() that already succeeded a few lines above. probe() then returns the error, the devm-managed indio_dev is freed, but the iio core still has it registered: the sysfs/chardev nodes stay live and point at freed memory. Add an error_unreg_dev label that unregisters the iio device before falling through to the existing buffer cleanup, mirroring the teardown order already used in lidar_remove().

Timeline

1. Oct 18, 2026, 3:44 PM UTCCVE published
2. Oct 21, 2026, 12:55 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 4ac4e086fd8c59e6b69089e6f7605500b63a6d17 · fixed in 2c8211eef98929c5188f8c2224e83b9a63b41bd1; From 4ac4e086fd8c59e6b69089e6f7605500b63a6d17 · fixed in 06fa13c53442257b94ea1519555ceddaaea57e0d; From 4ac4e086fd8c59e6b69089e6f7605500b63a6d17 · fixed in 20ebd7f4e35c0a737f011bc83aeb0cdd37507648; From 4ac4e086fd8c59e6b69089e6f7605500b63a6d17 · fixed in e462b47b9637b8c0285f4a38b5af9a322847d164; From 4ac4e086fd8c59e6b69089e6f7605500b63a6d17 · fixed in 4daa9ca557b4b98ae1ad38a6d1deaa3e31eb8edf

• Linux Linux

  4.5

• KernelLinux

  From 4.5.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.56; From 6.19.0 · fixed in 7.2.10

References 5