UnratedFix available
ext4: refuse to create ea block when umounted
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.308, 4.19.276, 5.10.173, 5.15.99, 5.4.235, 6.1.16, 6.2.3
- CVEs
- CVE-2023-54305
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 16:46 UTC · Revision 1
Source evidence
ext4: refuse to create ea block when umounted
core-osv · Original sourcePublished 30 Dec 2025, 12:23 UTC
In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.
osv:CVE-2023-54305
Kernel
Fixed versions: 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3
Complete source record
{
"id": "138ebeaad526ea7f267bf075a1614bbb421aad59efd971fca46fda8e843bcfc4",
"url": "https://osv.dev/vulnerability/CVE-2023-54305",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ext4: refuse to create ea block when umounted",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.",
"evidence": "osv:CVE-2023-54305",
"products": [
{
"name": {
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"prerequisites": [],
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"evidence": "/affected/1/ranges"
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{
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"evidence": "/affected/1/ranges"
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{
"value": "5.4.235",
"evidence": "/affected/1/ranges"
},
{
"value": "5.10.173",
"evidence": "/affected/1/ranges"
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{
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"evidence": "/affected/1/ranges"
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{
"value": "6.1.16",
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{
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"affected_versions": []
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"severity": "unknown",
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"aliases": [
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"affected": [
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"type": "GIT",
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{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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{
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{
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{
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{
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{
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{
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},
{
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{
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{
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54305.json"
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],
"modified": "2026-10-28T02:30:21.065031581Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/05cbf6ddd9847c7b4f0662c048f195b09405a9d0",
"https://git.kernel.org/stable/c/0dc0fa313bb4e86382a3e7125429710d44383196",
"https://git.kernel.org/stable/c/116008ada3d0de4991099edaf6b8c2e9cd6f225a",
"https://git.kernel.org/stable/c/21f6a80d9234422e2eb445734b22c78fc5bf6719",
"https://git.kernel.org/stable/c/a458a8c1d1fc4e10a1813786132b09a3863ad3f2",
"https://git.kernel.org/stable/c/a92b67e768bde433b9385cde56c09deb58db269e",
"https://git.kernel.org/stable/c/aedea161d031502a423ed1c7597754681a4f8cda",
"https://git.kernel.org/stable/c/f31173c19901a96bb2ebf6bcfec8a08df7095c91",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54305.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-54305",
"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/2023/54xxx/CVE-2023-54305.json"
}
},
"related_cves": [
{
"value": "CVE-2023-54305",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 487350,
"published_at": "2025-12-30T12:23:39.163+00:00"
}