CVE-2021-33655

Description

When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4

http://www.openwall.com/lists/oss-security/2022/07/19/2

https://www.debian.org/security/2022/dsa-5191

https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html

Details