dmaengine: Fix possible use after free
In the Linux kernel, the following vulnerability has been resolved: dmaengine: Fix possible use after free In dma_release_channel(), check chan->device->privatecnt after call dma_chan_put(). However, dma_chan_put() call dma_device_put() which could release the last reference of the device if the DMA provider is already gone and hence free it. Fixes it by moving dma_chan_put() after the check.
CVE-2026-72476
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-2026-72476
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": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "444f96066937f3fdf0e79b53289cff223c7d638b",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "ab438a9efb9042c79d2f8db28a326d55feb8591f",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "5876f38b67a309c00628942cb25679749b53b397",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "3b0240483dc977dbec4f3bc7a5383d4691ecb625",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "329ec20a86091d2a6e5b4fe507545e7d678a22a2",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "0bc191050c3253da8ef4bfaf157c44efed6e22cd",
"versionType": "git"
},
{
"status": "affected",
"version": "0f571515c332e00b3515dbe0859ceaa30ab66e00",
"lessThan": "92f853f0645aebf1d05d333e97ab7c342ace1892",
"versionType": "git"
}
],
"programFiles": [
"drivers/dma/dmaengine.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.30",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/dma/dmaengine.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-72476
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #33062 · Revision 1
- Added to Heist Feed
- Publisher date