CVE-2023-31085

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c
https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/
https://security.netapp.com/advisory/ntap-20230929-0003/
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c
https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/
https://security.netapp.com/advisory/ntap-20230929-0003/
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:6.2:*:*:*:*:*:*:*

History

14 Oct 2026, 23:17

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-398330.html - () https://cert-portal.siemens.com/productcert/html/ssa-769027.html - () https://cert-portal.siemens.com/productcert/html/ssa-794697.html -

Information

Published : 2023-04-24 06:15

Updated : 2026-10-14 23:17

NVD link : CVE-2023-31085

Mitre link : CVE-2023-31085

CVE.ORG link : CVE-2023-31085

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-369

Divide By Zero

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