Red Hat: CVE-2023-39198: kernel: QXL: race condition leading to use-after-free in qxl_mode_dumb_create() (Multiple Advisories)
Description
A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.
Solution(s)
- redhat-upgrade-kernel
- redhat-upgrade-kernel-rt
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