dma-buf: insert memory barrier before updating num_fences
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.
CVE-2025-38095
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-38095
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "90eb79c4ed98a4e24a62ccf61c199ab0f680fa8f",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "d0b7f11dd68b593bd970e5735be00e8d89bace30",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "3becc659f9cb76b481ad1fb71f54d5c8d6332d3f",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "c9d2b9a80d06a58f37e0dc8c827075639b443927",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "fe1bebd0edb22e3536cbc920ec713331d1367ad4",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "08680c4dadc6e736c75bc2409d833f03f9003c51",
"versionType": "git"
},
{
"status": "affected",
"version": "a590d0fdbaa56f482ff515e1040b6d9b1b200d63",
"lessThan": "72c7d62583ebce7baeb61acce6057c361f73be4a",
"versionType": "git"
}
],
"programFiles": [
"drivers/dma-buf/dma-resv.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.241",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.192",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.140",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.92",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.30",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.14.8",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/dma-buf/dma-resv.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-38095
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30517 · Revision 1
- Added to Heist Feed
- Publisher date