Vulnerability CVE-2021-33656
Published: 2022-07-18

Description:
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

 References:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch
https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel
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