Vulnerability-Lookup

FKIE_CVE-2026-23228

Vulnerability from fkie_nvd - Published: 2026-02-18 16:22 - Updated: 2026-03-18 13:27

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: smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection() On kthread_run() failure in ksmbd_tcp_new_connection(), the transport is freed via free_transport(), which does not decrement active_num_conn, leaking this counter. Replace free_transport() with ksmbd_tcp_disconnect().

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/599271110c35f6b16e2e4e45b9fbd47ed378c982	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6dd2645cf080a75be31fa66063c7332b291f46f0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/77ffbcac4e569566d0092d5f22627dfc0896b553	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/787769c8cc50416af7b8b1a36e6bcd6aaa7680aa	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ddd69cd1338c6197e1b6b19cec60d99c8633e4f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/baf664fc90a6139a39a58333e4aaa390c10d45dc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cd25e0d809531a67e9dd53b19012d27d2b13425f	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2

JSON

To clipboard

{
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    }
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  "id": "CVE-2026-23228",
  "lastModified": "2026-03-18T13:27:53.357",
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          "baseScore": 5.5,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "userInteraction": "NONE",
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}

CVE-2026-23228 (GCVE-0-2026-23228)

Vulnerability from cvelistv5 – Published: 2026-02-18 14:53 – Updated: 2026-02-23 03:16

Title

smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6dd2645cf080a75be…
	https://git.kernel.org/stable/c/7ddd69cd1338c6197…
	https://git.kernel.org/stable/c/787769c8cc50416af…
	https://git.kernel.org/stable/c/baf664fc90a6139a3…
	https://git.kernel.org/stable/c/cd25e0d809531a67e…
	https://git.kernel.org/stable/c/599271110c35f6b16…
	https://git.kernel.org/stable/c/77ffbcac4e569566d…

Impacted products

Vendor

Product

Version

Linux

Affected: 4210c3555db4b38bade92331b153e583261f05f9 , < 6dd2645cf080a75be31fa66063c7332b291f46f0 (git)
Affected: d5d7847e57ac69fa99c18b363a34419bcdb5a281 , < 7ddd69cd1338c6197e1b6b19cec60d99c8633e4f (git)
Affected: 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 , < 787769c8cc50416af7b8b1a36e6bcd6aaa7680aa (git)
Affected: 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 , < baf664fc90a6139a39a58333e4aaa390c10d45dc (git)
Affected: 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 , < cd25e0d809531a67e9dd53b19012d27d2b13425f (git)
Affected: 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 , < 599271110c35f6b16e2e4e45b9fbd47ed378c982 (git)
Affected: 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 , < 77ffbcac4e569566d0092d5f22627dfc0896b553 (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 5.15.201 , ≤ 5.15.* (semver)
Unaffected: 6.1.164 , ≤ 6.1.* (semver)
Unaffected: 6.6.125 , ≤ 6.6.* (semver)
Unaffected: 6.12.72 , ≤ 6.12.* (semver)
Unaffected: 6.18.11 , ≤ 6.18.* (semver)
Unaffected: 6.19.1 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/transport_tcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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      "providerMetadata": {
        "dateUpdated": "2026-02-23T03:16:39.427Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    "dateUpdated": "2026-02-23T03:16:39.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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-2026-23228

CVE-2026-23228 (GCVE-0-2026-23228)

Tags

Sightings

Nomenclature