CVE-2026-74423 (GCVE-0-2026-74423)
Vulnerability from cvelistv5
Published
2026-08-15 05:59
Modified
2026-08-17 05:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
accel/amdxdna: Fix leak when pinning ubuf pages
When pin_user_pages_fast() returns fewer pages than requested, the pages
that were successfully pinned are not released, leading to a leak.
Fix this by unpinning any partially pinned pages before returning failure.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/accel/amdxdna/amdxdna_ubuf.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "68dc52f308a17c3103a349f722dd5dea32c50a88",
"status": "affected",
"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
"versionType": "git"
},
{
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"status": "affected",
"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
"versionType": "git"
},
{
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"status": "affected",
"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/accel/amdxdna/amdxdna_ubuf.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"lessThan": "6.18",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.40",
"versionStartIncluding": "6.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.5",
"versionStartIncluding": "6.18",
"vulnerable": true
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:19:08.522Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88"
},
{
"url": "https://git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7"
},
{
"url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f"
}
],
"title": "accel/amdxdna: Fix leak when pinning ubuf pages",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-74423",
"datePublished": "2026-08-15T05:59:26.568Z",
"dateReserved": "2026-08-15T05:44:03.894Z",
"dateUpdated": "2026-08-17T05:19:08.522Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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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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