CVE-2025-21793

spi: sn-f-ospi: Fix division by zero

Description

In the Linux kernel, the following vulnerability has been resolved: spi: sn-f-ospi: Fix division by zero When there is no dummy cycle in the spi-nor commands, both dummy bus cycle bytes and width are zero. Because of the cpu's warning when divided by zero, the warning should be avoided. Return just zero to avoid such calculations.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-21793?
CVE-2025-21793 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21793?
To fix CVE-2025-21793, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21793 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21793 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21793?
CVE-2025-21793 affects Linux Linux, Linux Linux.
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