CriticalFix available
btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.258, 5.15.209, 6.1.175, 6.12.83, 6.18.24, 6.19.14, 6.6.136
- CVEs
- CVE-2026-43117
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 18:57 UTC · Revision 1
Source evidence
btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
core-osv · Original sourcePublished 6 May 2026, 07:40 UTC
In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.
osv:CVE-2026-43117
Kernel
Fixed versions: 5.10.258, 5.15.209, 6.1.175, 6.6.136, 6.12.83, 6.18.24, 6.19.14
Complete source record
{
"id": "682757de077c1035eea8b3ec20d6112baf89df297916e86e10a6e79b21e25281",
"url": "https://osv.dev/vulnerability/CVE-2026-43117",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.",
"evidence": "osv:CVE-2026-43117",
"products": [
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"name": {
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"prerequisites": [],
"fixed_versions": [
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"value": "5.10.258",
"evidence": "/affected/1/ranges"
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{
"value": "5.15.209",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.175",
"evidence": "/affected/1/ranges"
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{
"value": "6.6.136",
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},
{
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"evidence": "/affected/1/ranges"
},
{
"value": "6.18.24",
"evidence": "/affected/1/ranges"
},
{
"value": "6.19.14",
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}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "CVE-2026-43117",
"aliases": [
"CVE-2026-43117"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
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"type": "GIT",
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{
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"database_specific": {
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}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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"introduced": "4.8.0"
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{
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
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{
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]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.24"
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]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
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]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43117.json"
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],
"modified": "2026-10-28T02:30:38.508130628Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-784472.html",
"https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a",
"https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97d",
"https://git.kernel.org/stable/c/4a7bab35fad5251c8cb738161152578cd83b6b9c",
"https://git.kernel.org/stable/c/520e8b4bcf872a534a7bf61ccf880047642df296",
"https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719",
"https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97",
"https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653d",
"https://git.kernel.org/stable/c/e252db8ca2a01f82d472091f35d549b313278636",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43117.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-43117",
"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/2026/43xxx/CVE-2026-43117.json"
}
},
"related_cves": [
{
"value": "CVE-2026-43117",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 505922,
"published_at": "2026-05-06T07:40:41.862+00:00"
}