CVE-2023-52801 Information

Description

In the Linux kernel the following vulnerability has been resolved:

iommufd: Fix missing update of domains_itree after splitting iopt_area

In iopt_area_split() if the original iopt_area has filled a domain and is linked to domains_itree pages_nodes have to be properly reinserted. Otherwise the domains_itree becomes corrupted and we will UAF.

Reference

https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498