CVE-2023-31085
An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2.
Published Apr 24, 2023 · updated Oct 14, 2026 · linux linux kernel
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.
Code
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Timeline
Detection, updates, and resolution for this record.
Apr 24, 2023 · NIST NVD
Detected
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.
Oct 14, 2026 · NIST NVD
Updated
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.
Affected
- cpe linux/linux kernel6.2
Sources
- CVE.orgVulnerability recordCVE-2023-31085
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2023-31085
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-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.
nvd.nist.gov