UnratedFix available
Fix CVE(s): CVE-2026-31405, CVE-2026-53043, CVE-2026-64564
Type: advisorySources: OSV
* CVE-2026-64564 - sctp: don't free the ASCONF's own transport in DEL-IP processing {CVE-2026-64564} * CVE-2026-53043 - ocfs2/dlm: validate qr_numregions in dlm_match_regions() {CVE-2026-53043} * CVE-2026-31405 - media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405} * Bump ABI 4.15.0-263
- Products
- linux-buildinfo-4.15.0-263-generic, linux-buildinfo-4.15.0-263-lowlatency, linux-cloud-tools-4.15.0-263-generic, linux-cloud-tools-4.15.0-263-lowlatency, linux-headers-4.15.0-263, linux-headers-4.15.0-263-generic, linux-headers-4.15.0-263-lowlatency, linux-hwe-cloud-tools-4.15.0-263, linux-hwe-tools-4.15.0-263, linux-image-unsigned-4.15.0-263-generic, linux-image-unsigned-4.15.0-263-lowlatency, linux-modules-4.15.0-263-generic, linux-modules-4.15.0-263-lowlatency, linux-modules-extra-4.15.0-263-generic, linux-source-4.15.0, linux-tools-4.15.0-263-generic, linux-tools-4.15.0-263-lowlatency
- Affected versions
- Not specified
- Fixed versions
- 4.15.0-263.274~16.04.1+tuxcare.els1
- CVEs
- CVE-2026-31405, CVE-2026-53043, CVE-2026-64564
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:39 UTC · Revision 1
Source evidence
Fix CVE(s): CVE-2026-31405, CVE-2026-53043, CVE-2026-64564
core-osv · Original sourcePublished 21 Oct 2026, 23:30 UTC
* CVE-2026-64564 - sctp: don't free the ASCONF's own transport in DEL-IP processing {CVE-2026-64564} * CVE-2026-53043 - ocfs2/dlm: validate qr_numregions in dlm_match_regions() {CVE-2026-53043} * CVE-2026-31405 - media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405} * Bump ABI 4.15.0-263
osv:CLSA-2026-1787293393
linux-buildinfo-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-buildinfo-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-cloud-tools-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-cloud-tools-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-headers-4.15.0-263
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-headers-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-headers-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-hwe-cloud-tools-4.15.0-263
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-hwe-tools-4.15.0-263
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-image-unsigned-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-image-unsigned-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-modules-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-modules-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-modules-extra-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-source-4.15.0
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-tools-4.15.0-263-generic
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
linux-tools-4.15.0-263-lowlatency
Fixed versions: 4.15.0-263.274~16.04.1+tuxcare.els1
Complete source record
{
"id": "d599f5db65406f8bc946066c87494cb8fd5eb15009e9a29fa4820a5f28bdd180",
"url": "https://osv.dev/vulnerability/CLSA-2026-1787293393",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-31405, CVE-2026-53043, CVE-2026-64564",
"summary": "* CVE-2026-64564 - sctp: don't free the ASCONF's own transport in DEL-IP processing {CVE-2026-64564} * CVE-2026-53043 - ocfs2/dlm: validate qr_numregions in dlm_match_regions() {CVE-2026-53043} * CVE-2026-31405 - media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405} * Bump ABI 4.15.0-263",
"evidence": "osv:CLSA-2026-1787293393",
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"affected_versions": []
},
{
"name": {
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"evidence": "/affected/9/package/name"
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{
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{
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{
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},
{
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"evidence": "/affected/14/package/name"
},
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},
{
"name": {
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"evidence": "/affected/15/ranges"
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},
{
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],
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],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1787293393",
"aliases": [
"CLSA-2026-1787293393"
],
"affected": [
{
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{
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"package": {
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"purl": "pkg:deb/tuxcare/linux-buildinfo-4.15.0-263-generic?distro=ubuntu-16.04",
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},
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"purl": "pkg:deb/tuxcare/linux-buildinfo-4.15.0-263-lowlatency?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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"database_specific": {
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"database_specific": {
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"purl": "pkg:deb/tuxcare/linux-headers-4.15.0-263-lowlatency?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
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"database_specific": {
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},
{
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"package": {
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"ecosystem": "TuxCare:Ubuntu:16.04"
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"database_specific": {
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},
{
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"ecosystem": "TuxCare:Ubuntu:16.04"
},
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"package": {
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"ecosystem": "TuxCare:Ubuntu:16.04"
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"database_specific": {
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"ecosystem": "TuxCare:Ubuntu:16.04"
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"package": {
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"purl": "pkg:deb/tuxcare/linux-modules-4.15.0-263-generic?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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}
},
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"package": {
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"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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}
},
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],
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"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1787293393.json"
}
},
{
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{
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}
]
}
],
"package": {
"name": "linux-source-4.15.0",
"purl": "pkg:deb/tuxcare/linux-source-4.15.0?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1787293393.json"
}
},
{
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],
"package": {
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"purl": "pkg:deb/tuxcare/linux-tools-4.15.0-263-generic?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1787293393.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "linux-tools-4.15.0-263-lowlatency",
"purl": "pkg:deb/tuxcare/linux-tools-4.15.0-263-lowlatency?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1787293393.json"
}
}
],
"modified": "2026-10-26T09:32:02.414233703Z",
"provider": "osv",
"upstream": [
"CVE-2026-31405",
"CVE-2026-53043",
"CVE-2026-64564"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1787293393.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-31405",
"https://nvd.nist.gov/vuln/detail/CVE-2026-53043",
"https://nvd.nist.gov/vuln/detail/CVE-2026-64564"
]
},
"related_cves": [
{
"value": "CVE-2026-31405",
"evidence": "/upstream"
},
{
"value": "CVE-2026-53043",
"evidence": "/upstream"
},
{
"value": "CVE-2026-64564",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449443,
"published_at": "2026-10-21T23:30:01+00:00"
}