CVE-2026-31693 (GCVE-0-2026-31693)
Vulnerability from cvelistv5
Published
2026-04-30 11:47
Modified
2026-05-03 05:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
cifs: some missing initializations on replay
In several places in the code, we have a label to signify
the start of the code where a request can be replayed if
necessary. However, some of these places were missing the
necessary reinitializations of certain local variables
before replay.
This change makes sure that these variables get initialized
after the label.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c",
"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"version": "433042a91f9373241307725b52de573933ffedbf",
"versionType": "git"
},
{
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"status": "affected",
"version": "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
"versionType": "git"
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{
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"status": "affected",
"version": "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
"versionType": "git"
},
{
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"programFiles": [
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"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"lessThan": "6.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.128",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.75",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.128",
"versionStartIncluding": "6.6.32",
"vulnerable": true
},
{
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{
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: some missing initializations on replay\n\nIn several places in the code, we have a label to signify\nthe start of the code where a request can be replayed if\nnecessary. However, some of these places were missing the\nnecessary reinitializations of certain local variables\nbefore replay.\n\nThis change makes sure that these variables get initialized\nafter the label."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-03T05:45:18.654Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/c854ab481ece4b3e5f4c2e8b22824f015ff874a5"
},
{
"url": "https://git.kernel.org/stable/c/1d731e512134495e0ef490ade0e4d91dc0d515ec"
},
{
"url": "https://git.kernel.org/stable/c/7c9ce68192eef14c777cb6ce17155d2eb2431aea"
},
{
"url": "https://git.kernel.org/stable/c/c99e160938b627f6f28edee930e8abc157e84386"
},
{
"url": "https://git.kernel.org/stable/c/14f66f44646333d2bfd7ece36585874fd72f8286"
}
],
"title": "cifs: some missing initializations on replay",
"x_generator": {
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}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-31693",
"datePublished": "2026-04-30T11:47:01.230Z",
"dateReserved": "2026-03-09T15:48:24.131Z",
"dateUpdated": "2026-05-03T05:45:18.654Z",
"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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