CVE-2023-52731

In the Linux kernel, the following vulnerability has been resolved: fbdev: Fix invalid page access after closing deferred I/O devices When a fbdev with deferred I/O is once opened and closed, the dirty pages still remain queued in the pageref list, and eventually later those may be processed in the delayed work. This may lead to a corruption of pages, hitting an Oops. This patch makes sure to cancel the delayed work and clean up the pageref list at closing the device for addressing the bug. A part of the cleanup code is factored out as a new helper function that is called from the common fb_release().

The following products are affected by CVE-2023-52731 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-52731.

URL	Resource
https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20
https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9
https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149
https://lore.kernel.org/linux-cve-announce/2024052159-CVE-2023-52731-29ab@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-52731
https://www.cve.org/CVERecord?id=CVE-2023-52731