UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
21 explicit affected versions
32 explicit affected versions
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67 explicit affected versions
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35 explicit affected versions
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68 explicit affected versions
39 explicit affected versions
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90 explicit affected versions
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34 explicit affected versions
113 explicit affected versions
134 explicit affected versions
10 explicit affected versions
8 explicit affected versions
11 explicit affected versions
68 explicit affected versions
4 explicit affected versions
57 explicit affected versions
1 explicit affected versions
1 explicit affected versions
37 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://lore.kernel.org/all/[email protected]/T/#u
- https://lore.kernel.org/all/[email protected]/
- https://patchwork.ozlabs.org/project/linux-mtd/patch/[email protected]/
- https://ubuntu.com/security/CVE-2023-31085
- https://ubuntu.com/security/notices/USN-6461-1
- https://ubuntu.com/security/notices/USN-6494-1
- https://ubuntu.com/security/notices/USN-6494-2
- https://ubuntu.com/security/notices/USN-6495-1
- https://ubuntu.com/security/notices/USN-6495-2
- https://ubuntu.com/security/notices/USN-6496-1
- https://ubuntu.com/security/notices/USN-6496-2
- https://ubuntu.com/security/notices/USN-6502-1
- https://ubuntu.com/security/notices/USN-6502-2
- https://ubuntu.com/security/notices/USN-6502-3
- https://ubuntu.com/security/notices/USN-6502-4
- https://ubuntu.com/security/notices/USN-6503-1
- https://ubuntu.com/security/notices/USN-6516-1
- https://ubuntu.com/security/notices/USN-6520-1
- https://ubuntu.com/security/notices/USN-6532-1
- https://ubuntu.com/security/notices/USN-6537-1
- https://ubuntu.com/security/notices/USN-6572-1
- https://www.cve.org/CVERecord?id=CVE-2023-31085