Vulnerability-Lookup

FKIE_CVE-2026-23093

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-03-17 21:09

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

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

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
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    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nksmbd: smbd: correcci\u00f3n de dma_unmap_sg() nents\n\nLas funciones dma_unmap_sg() deben ser llamadas con los mismos nents que la dma_map_sg(), no el valor que la funci\u00f3n de mapeo devolvi\u00f3."
    }
  ],
  "id": "CVE-2026-23093",
  "lastModified": "2026-03-17T21:09:13.137",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "vulnStatus": "Analyzed",
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}

CVE-2026-23093 (GCVE-0-2026-23093)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-09 08:38

Title

ksmbd: smbd: fix dma_unmap_sg() nents

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f569f5b8bfd5133de…
	https://git.kernel.org/stable/c/6ececffd3e9fe93a8…
	https://git.kernel.org/stable/c/4d1e9a4a450aae472…
	https://git.kernel.org/stable/c/70ba85e439221a5d6…
	https://git.kernel.org/stable/c/d1943bc9dc9508f59…
	https://git.kernel.org/stable/c/98e3e2b561bc88f4d…

Impacted products

Vendor

Product

Version

Linux

Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 6ececffd3e9fe93a87738625dc0671165d27bf96 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 4d1e9a4a450aae47277763562122cc80ed703ab2 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 70ba85e439221a5d6dda34a3004db6640f0525e6 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < d1943bc9dc9508f5933788a76f8a35d10e43a646 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 98e3e2b561bc88f4dd218d1c05890672874692f6 (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.123 , ≤ 6.6.* (semver)
Unaffected: 6.12.69 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/transport_rdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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      "title": "ksmbd: smbd: fix dma_unmap_sg() nents",
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    "datePublished": "2026-02-04T16:08:16.159Z",
    "dateReserved": "2026-01-13T15:37:45.962Z",
    "dateUpdated": "2026-02-09T08:38:33.448Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23093

CVE-2026-23093 (GCVE-0-2026-23093)

Tags

Sightings

Nomenclature