UBUNTU-CVE-2023-52564

In the Linux kernel, the following vulnerability has been resolved: Revert "tty: ngsm: fix UAF in gsmcleanupmux" This reverts commit 9b9c8195f3f0d74a826077fc1c01b9ee74907239. The commit above is reverted as it did not solve the original issue. gsmcleanupmux tries to free up the virtual ttys by...