CVE-2026-23093 (GCVE-0-2026-23093)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:33
VLAI?
Title
ksmbd: smbd: fix dma_unmap_sg() nents
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | 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) |
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{
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"programFiles": [
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{
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{
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"status": "unaffected",
"version": "6.1.162",
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"status": "unaffected",
"version": "6.6.123",
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},
{
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"status": "unaffected",
"version": "6.12.69",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19-rc7",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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}
],
"negate": false,
"operator": "OR"
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbd: fix dma_unmap_sg() nents\n\nThe dma_unmap_sg() functions should be called with the same nents as the\ndma_map_sg(), not the value the map function returned."
}
],
"providerMetadata": {
"dateUpdated": "2026-02-06T16:33:14.557Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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},
{
"url": "https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96"
},
{
"url": "https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2"
},
{
"url": "https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6"
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{
"url": "https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646"
},
{
"url": "https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6"
}
],
"title": "ksmbd: smbd: fix dma_unmap_sg() nents",
"x_generator": {
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}
}
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-23093",
"datePublished": "2026-02-04T16:08:16.159Z",
"dateReserved": "2026-01-13T15:37:45.962Z",
"dateUpdated": "2026-02-06T16:33:14.557Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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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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