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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00056.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
0626e6641f6b467447c81dd7678a69c66f7746cf affected < f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec
0626e6641f6b467447c81dd7678a69c66f7746cf affected < 6ececffd3e9fe93a87738625dc0671165d27bf96
0626e6641f6b467447c81dd7678a69c66f7746cf affected < 4d1e9a4a450aae47277763562122cc80ed703ab2
0626e6641f6b467447c81dd7678a69c66f7746cf affected < 70ba85e439221a5d6dda34a3004db6640f0525e6
0626e6641f6b467447c81dd7678a69c66f7746cf affected < d1943bc9dc9508f5933788a76f8a35d10e43a646
0626e6641f6b467447c81dd7678a69c66f7746cf affected < 98e3e2b561bc88f4dd218d1c05890672874692f6
Linux Linux affected
Version Status Constraints
5.15 affected —
0 unaffected < 5.15
5.15.199 unaffected ≤ 5.15.*
6.1.162 unaffected ≤ 6.1.*
6.6.123 unaffected ≤ 6.6.*
6.12.69 unaffected ≤ 6.12.*
6.18.8 unaffected ≤ 6.18.*
6.19 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4476-1 linux-6.1 security update
Debian DSA Debian DSA DSA-6126-1 linux security update
Debian DSA Debian DSA DSA-6127-1 linux security update
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2 cve-icon cve-icon
https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96 cve-icon cve-icon
https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6 cve-icon cve-icon
https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6 cve-icon cve-icon
https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646 cve-icon cve-icon
https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026020426-CVE-2026-23093-db0d@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-23093 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-23093 cve-icon
History

Fri, 06 Feb 2026 17:00:00 +0000

Type Values Removed Values Added
References

Thu, 05 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
References

Wed, 04 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title ksmbd: smbd: fix dma_unmap_sg() nents
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-02-09T08:38:33.448Z

Reserved: 2026-01-13T15:37:45.962Z

Link: CVE-2026-23093

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-04T17:16:20.177

Modified: 2026-02-06T17:16:24.743

Link: CVE-2026-23093

cve-icon Redhat

Severity :

Publid Date: 2026-02-04T00:00:00Z

Links: CVE-2026-23093 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.