CVE-2026-23228 (GCVE-0-2026-23228)
Vulnerability from cvelistv5 – Published: 2026-02-18 14:53 – Updated: 2026-02-23 03:16
VLAI?
Title
smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()
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().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | 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) |
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{
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"version": "0",
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{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.201",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.1.164",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.125",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.72",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.11",
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{
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"version": "6.19.1",
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],
"cpeApplicability": [
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()\n\nOn kthread_run() failure in ksmbd_tcp_new_connection(), the transport is\nfreed via free_transport(), which does not decrement active_num_conn,\nleaking this counter.\n\nReplace free_transport() with ksmbd_tcp_disconnect()."
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],
"providerMetadata": {
"dateUpdated": "2026-02-23T03:16:39.427Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6dd2645cf080a75be31fa66063c7332b291f46f0"
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{
"url": "https://git.kernel.org/stable/c/7ddd69cd1338c6197e1b6b19cec60d99c8633e4f"
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{
"url": "https://git.kernel.org/stable/c/787769c8cc50416af7b8b1a36e6bcd6aaa7680aa"
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{
"url": "https://git.kernel.org/stable/c/baf664fc90a6139a39a58333e4aaa390c10d45dc"
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"url": "https://git.kernel.org/stable/c/cd25e0d809531a67e9dd53b19012d27d2b13425f"
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{
"url": "https://git.kernel.org/stable/c/599271110c35f6b16e2e4e45b9fbd47ed378c982"
},
{
"url": "https://git.kernel.org/stable/c/77ffbcac4e569566d0092d5f22627dfc0896b553"
}
],
"title": "smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()",
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-23228",
"datePublished": "2026-02-18T14:53:31.882Z",
"dateReserved": "2026-01-13T15:37:45.988Z",
"dateUpdated": "2026-02-23T03:16:39.427Z",
"state": "PUBLISHED"
},
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"nvd": "{\"cve\":{\"id\":\"CVE-2026-23228\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-18T16:22:32.580\",\"lastModified\":\"2026-02-23T04:16:01.493\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsmb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()\\n\\nOn kthread_run() failure in ksmbd_tcp_new_connection(), the transport is\\nfreed via free_transport(), which does not decrement active_num_conn,\\nleaking this counter.\\n\\nReplace free_transport() with ksmbd_tcp_disconnect().\"},{\"lang\":\"es\",\"value\":\"Se ha resuelto la siguiente vulnerabilidad en el kernel de Linux:\\n\\nsmb: servidor: corregir fuga de active_num_conn en ksmbd_tcp_new_connection()\\n\\nEn caso de fallo de kthread_run() en ksmbd_tcp_new_connection(), se libera el transporte a trav\u00e9s de free_transport(), lo que no decrementa active_num_conn, fugando este contador.\\n\\nReemplazar free_transport() con ksmbd_tcp_disconnect().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/599271110c35f6b16e2e4e45b9fbd47ed378c982\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6dd2645cf080a75be31fa66063c7332b291f46f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/77ffbcac4e569566d0092d5f22627dfc0896b553\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/787769c8cc50416af7b8b1a36e6bcd6aaa7680aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7ddd69cd1338c6197e1b6b19cec60d99c8633e4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/baf664fc90a6139a39a58333e4aaa390c10d45dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cd25e0d809531a67e9dd53b19012d27d2b13425f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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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.
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