High
libkcapi — security advisory
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
- Products
- libkcapi
- Affected versions
- 0.13.0-0ubuntu1~ppa1, 0.13.0-0ubuntu1~ppa2, 1.0.0-2, 1.0.1-1, 1.0.2-1, 1.0.3-2, 1.0.3-2fips3, 1.1.3-1, 1.1.5-1, 1.1.5-1fips1, 1.2.1-1, 1.3.1-1, 1.3.1-2, 1.3.1-3, 1.4.0-1, 1.4.0-1ubuntu0.1~Fips1, 1.4.0-1ubuntu3, 1.4.0-1ubuntu4, 1.4.0-1ubuntu5
- Fixed versions
- Not specified
- CVEs
- CVE-2026-71226
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:14 UTC · Revision 1
Source evidence
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
osv:UBUNTU-CVE-2026-71226
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
libkcapi
Fixed versions: Not specified
Complete source record
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"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-71226",
"method": "structured",
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"title": "UBUNTU-CVE-2026-71226",
"summary": "Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.",
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],
"modified": "2026-10-17T13:00:42.757102081Z",
"provider": "osv",
"upstream": [
"CVE-2026-71226"
],
"references": [
"https://ubuntu.com/security/CVE-2026-71226",
"https://www.cve.org/CVERecord?id=CVE-2026-71226",
"https://bugzilla.redhat.com/show_bug.cgi?id=2462114",
"https://access.redhat.com/security/cve/CVE-2026-71226"
]
},
"related_cves": [
{
"value": "CVE-2026-71226",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360792,
"published_at": "2026-08-05T13:24:00+00:00"
}