CVE-2026-31431 (GCVE-0-2026-31431)
Vulnerability from cvelistv5 – Published: 2026-04-22 08:15 – Updated: 2026-04-22 08:15
VLAI?
Title
crypto: algif_aead - Revert to operating out-of-place
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: algif_aead - Revert to operating out-of-place
This mostly reverts commit 72548b093ee3 except for the copying of
the associated data.
There is no benefit in operating in-place in algif_aead since the
source and destination come from different mappings. Get rid of
all the complexity added for in-place operation and just copy the
AD directly.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8
(git)
Affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < ce42ee423e58dffa5ec03524054c9d8bfd4f6237 (git) Affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 (git) |
||
{
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"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"crypto/af_alg.c",
"crypto/algif_aead.c",
"crypto/algif_skcipher.c",
"include/crypto/if_alg.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"versionType": "git"
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"versionType": "git"
}
]
},
{
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"programFiles": [
"crypto/af_alg.c",
"crypto/algif_aead.c",
"crypto/algif_skcipher.c",
"include/crypto/if_alg.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.14"
},
{
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"status": "unaffected",
"version": "0",
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{
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"status": "unaffected",
"version": "6.18.22",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.19.12",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
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}
],
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},
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},
{
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}
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"negate": false,
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}
]
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],
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_aead - Revert to operating out-of-place\n\nThis mostly reverts commit 72548b093ee3 except for the copying of\nthe associated data.\n\nThere is no benefit in operating in-place in algif_aead since the\nsource and destination come from different mappings. Get rid of\nall the complexity added for in-place operation and just copy the\nAD directly."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-22T08:15:10.123Z",
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"shortName": "Linux"
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},
{
"url": "https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237"
},
{
"url": "https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5"
}
],
"title": "crypto: algif_aead - Revert to operating out-of-place",
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"cveId": "CVE-2026-31431",
"datePublished": "2026-04-22T08:15:10.123Z",
"dateReserved": "2026-03-09T15:48:24.089Z",
"dateUpdated": "2026-04-22T08:15:10.123Z",
"state": "PUBLISHED"
},
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"date": "2026-04-23",
"epss": "7e-05",
"percentile": "0.00599"
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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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