In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: fix use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.
https://git.kernel.org/stable/c/f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a
https://git.kernel.org/stable/c/de83d4617f9fe059623e97acf7e1e10d209625b5
https://git.kernel.org/stable/c/896ec55da3b90bdb9fc04fedc17ad8c359b2eee5
https://git.kernel.org/stable/c/5c04217d06a1161aaf36267e9d971ab6f847d5a7
https://git.kernel.org/stable/c/1ef70a0b104ae8011811f60bcfaa55ff49385171