CVE-2025-68317 (GCVE-0-2025-68317)
Vulnerability from cvelistv5
Published
2025-12-16 15:39
Modified
2025-12-16 15:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring/zctx: check chained notif contexts
Send zc only links ubuf_info for requests coming from the same context.
There are some ambiguous syz reports, so let's check the assumption on
notification completion.
References
Impacted products
{
"containers": {
"cna": {
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"product": "Linux",
"programFiles": [
"io_uring/notif.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
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"versionType": "git"
}
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],
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"version": "6.12.58",
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{
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"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
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}
],
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.58",
"vulnerable": true
},
{
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}
],
"providerMetadata": {
"dateUpdated": "2025-12-16T15:39:47.159Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/aaafd17d3f4be2c15539359a5b4bfa00237f687f"
},
{
"url": "https://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60"
},
{
"url": "https://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053"
}
],
"title": "io_uring/zctx: check chained notif contexts",
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"assignerShortName": "Linux",
"cveId": "CVE-2025-68317",
"datePublished": "2025-12-16T15:39:47.159Z",
"dateReserved": "2025-12-16T14:48:05.295Z",
"dateUpdated": "2025-12-16T15:39:47.159Z",
"state": "PUBLISHED"
},
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"vulnerability-lookup:meta": {
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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