HighFix available
dma-buf: insert memory barrier before updating num_fences
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.241, 5.15.192, 6.1.140, 6.12.30, 6.14.8, 6.6.92
- CVEs
- CVE-2025-38095
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 07:55 UTC · Revision 1
Source evidence
dma-buf: insert memory barrier before updating num_fences
core-osv · Original sourcePublished 3 Jul 2025, 07:44 UTC
In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.
osv:CVE-2025-38095
Kernel
Fixed versions: 5.10.241, 5.15.192, 6.1.140, 6.6.92, 6.12.30, 6.14.8
Complete source record
{
"id": "d63c1c1fdd336841e807fe5724e7e9b925b3907396eac6d76ae2e133af607e35",
"url": "https://osv.dev/vulnerability/CVE-2025-38095",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "dma-buf: insert memory barrier before updating num_fences",
"summary": "In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.",
"evidence": "osv:CVE-2025-38095",
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"evidence": "/affected/1/ranges"
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{
"value": "5.15.192",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.140",
"evidence": "/affected/1/ranges"
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{
"value": "6.6.92",
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{
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{
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"affected_versions": []
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"severity": "high",
"structured": {
"id": "CVE-2025-38095",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
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"affected": [
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{
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{
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"package": {
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"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-10-28T02:30:50.542194004Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51",
"https://git.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3f",
"https://git.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4a",
"https://git.kernel.org/stable/c/90eb79c4ed98a4e24a62ccf61c199ab0f680fa8f",
"https://git.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927",
"https://git.kernel.org/stable/c/d0b7f11dd68b593bd970e5735be00e8d89bace30",
"https://git.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4",
"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38095.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-38095",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38095.json"
}
},
"related_cves": [
{
"value": "CVE-2025-38095",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 518683,
"published_at": "2025-07-03T07:44:18.214+00:00"
}