CVE-2023-31085

CVE-2023-31085 – Linux kernel 6.2 (drivers/mtd/ubi/cdev.c) shows a divide-by-zero in do_div(sz,mtd-> erasesize) when mtd->erasesize is 0, triggered via ctrl_cdev_ioctl. Connected advisories reference upstream Linux commits and vendor advisories (e.g., Astra Linux and Amazon Linux 2) noting ...