vulnerability
Red Hat: CVE-2023-31085: kernel: divide-by-zero error in ctrl_cdev_ioctl when do_div happens and erasesize is 0
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Apr 24, 2023 | Jul 9, 2025 | Jul 10, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Apr 24, 2023
Added
Jul 9, 2025
Modified
Jul 10, 2025
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(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
Solution
no-fix-redhat-rpm-package
References
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