CVE-2025-21793 Information

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.

Reference

https://git.kernel.org/stable/c/3588b1c0fde2f58d166e3f94a5a58d64b893526c https://git.kernel.org/stable/c/4df6f005bef04a3dd16c028124a1b5684db3922b https://git.kernel.org/stable/c/7434135553bc03809a55803ee6a8dcaae6240d55 https://git.kernel.org/stable/c/966328191b4c389c0f2159fa242915f51cbc1679