CVE-2026-23093

MEDIUM

Linux Kernel 5.15.0-6.18.7 - DoS via Incorrect DMA Unmap

Title source: llm

Description

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.

References (6)

Core 6

Core References

Patch

https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec

Patch

https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96

Patch

https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2

Patch

https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6

Patch

https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646

Patch

https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6

Scores

CVSS v3 5.5

EPSS 0.0003

EPSS Percentile 7.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (21)

linux/Kernel 5.15.0 - 5.15.199linux

linux/Kernel 5.16.0 - 6.1.162linux

linux/Kernel 6.13.0 - 6.18.8linux

linux/Kernel 6.2.0 - 6.6.123linux

linux/Kernel 6.7.0 - 6.12.69linux

Linux/Linux < 5.15

Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 4d1e9a4a450aae47277763562122cc80ed703ab2

Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 6ececffd3e9fe93a87738625dc0671165d27bf96

Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 70ba85e439221a5d6dda34a3004db6640f0525e6

Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 98e3e2b561bc88f4dd218d1c05890672874692f6

... and 11 more

Published Feb 04, 2026

Tracked Since Feb 18, 2026