CVE-2023-31085: Divide by Zero
First published: Mon Apr 24 2023(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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =6.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.115-1<=6.1.119-1<=6.11.10-1<=6.12.5-1 |
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Reference Links
- https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra@nod.at/
- https://security.netapp.com/advisory/ntap-20230929-0003/
- https://launchpad.net/bugs/cve/CVE-2023-31085
- 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-tracker.debian.org/tracker/CVE-2023-31085
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-31085
- https://nvd.nist.gov/vuln/detail/CVE-2023-31085
- https://ubuntu.com/security/CVE-2023-31085
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