CVE-2026-23093: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbd: fix dma_unmap_sg() nents The dma_unmap_sg() functions should be called with the same nents as the dma_map_sg(), not the value the map function returned.

Affected products

• Linux Linux Kernel: from 5.15, before 5.15.199 (fixed in 5.15.199); from 5.16, before 6.1.162 (fixed in 6.1.162); from 6.2, before 6.6.123 (fixed in 6.6.123); from 6.7, before 6.12.69 (fixed in 6.12.69); from 6.13, before 6.18.8 (fixed in 6.18.8); version 6.19 only

Published 2026-02-04. Last modified 2026-06-17.