UnratedFix available
net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state Pass the already obtained vlan group pointer to br_mst_vlan_set_state() instead of dereferencing it again. Each caller has already correctly dereferenced it for their context. This change is required for the following suspicious RCU dereference fix. No functional changes intended.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.95, 6.6.35, 6.9.6
- CVEs
- CVE-2024-40921
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 10:32 UTC · Revision 1
Source evidence
net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state
core-osv · Original sourcePublished 12 Jul 2024, 12:25 UTC
In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state Pass the already obtained vlan group pointer to br_mst_vlan_set_state() instead of dereferencing it again. Each caller has already correctly dereferenced it for their context. This change is required for the following suspicious RCU dereference fix. No functional changes intended.
osv:CVE-2024-40921
Kernel
Fixed versions: 6.1.95, 6.6.35, 6.9.6
Complete source record
{
"id": "2610762fb2d5bd5bedd3fa5147ff6db0762dff9c4d090ede0dace7f22ba0212a",
"url": "https://osv.dev/vulnerability/CVE-2024-40921",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state Pass the already obtained vlan group pointer to br_mst_vlan_set_state() instead of dereferencing it again. Each caller has already correctly dereferenced it for their context. This change is required for the following suspicious RCU dereference fix. No functional changes intended.",
"evidence": "osv:CVE-2024-40921",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.1.95",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.35",
"evidence": "/affected/1/ranges"
},
{
"value": "6.9.6",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2024-40921",
"aliases": [
"CVE-2024-40921"
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "8ca9a750fc711911ef616ceb627d07357b04545e"
},
{
"fixed": "09f4337c27f5bdeb8646a6db91488cc2f7d537ff"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "4488617e5e995a09abe4d81add5fb165674edb59"
},
{
"fixed": "a6cc9e9a651b9861efa068c164ee62dfba68c6ca"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "e43dd2b1ec746e105b7db5f9ad6ef14685a615a4"
},
{
"fixed": "d2dc02775fc0c4eacaee833a0637e5958884a8e5"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "3a7c1661ae1383364cd6092d851f5e5da64d476b"
},
{
"fixed": "36c92936e868601fa1f43da6758cf55805043509"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.8.12"
},
{
"fixed": "6.9"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "a2b01e65d9ba8af2bb086d3b7288ca53a07249ac"
}
]
}
],
"versions": [
"v6.1.94",
"v6.1.93",
"v6.6.34",
"v6.6.33",
"v6.9.5",
"v6.9.4",
"v6.9.3",
"v6.8.12"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40921.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.1.93"
},
{
"fixed": "6.1.95"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.6.33"
},
{
"fixed": "6.6.35"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.9.3"
},
{
"fixed": "6.9.6"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40921.json"
}
}
],
"modified": "2026-10-28T02:30:43.887193577Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/09f4337c27f5bdeb8646a6db91488cc2f7d537ff",
"https://git.kernel.org/stable/c/36c92936e868601fa1f43da6758cf55805043509",
"https://git.kernel.org/stable/c/a6cc9e9a651b9861efa068c164ee62dfba68c6ca",
"https://git.kernel.org/stable/c/d2dc02775fc0c4eacaee833a0637e5958884a8e5",
"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40921.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-40921",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40921.json"
}
},
"related_cves": [
{
"value": "CVE-2024-40921",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 511634,
"published_at": "2024-07-12T12:25:02.907+00:00"
}