CVE-2023-31085 Information

Description

An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error in do_div(szmtd->erasesize) used indirectly by ctrl_cdev_ioctl when mtd->erasesize is 0.

Reference

https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra@nod.at/