7.8
HIGH
CVSS 3.1
CVE-2026-72476
dmaengine: Fix possible use after free
Overview
Description
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.
Details
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Apply the Linux kernel patch to fix a use-after-free vulnerability in the dmaengine component.
- Update the Linux kernel to the corrected version.
- Apply the dmaengine patch.
- Rebuild and deploy the kernel.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72476.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72476 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72476
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72476 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72476 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'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-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/dma/dmaengine.c'], 'defaultStatus': 'affected'}] [{'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'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'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-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/dma/dmaengine.c'], 'defaultStatus': 'affected'}] Added Description 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. Added Reference https://git.kernel.org/stable/c/0bc191050c3253da8ef4bfaf157c44efed6e22cd Added Reference https://git.kernel.org/stable/c/329ec20a86091d2a6e5b4fe507545e7d678a22a2 Added Reference https://git.kernel.org/stable/c/3b0240483dc977dbec4f3bc7a5383d4691ecb625 Added Reference https://git.kernel.org/stable/c/444f96066937f3fdf0e79b53289cff223c7d638b Added Reference https://git.kernel.org/stable/c/5876f38b67a309c00628942cb25679749b53b397 Added Reference https://git.kernel.org/stable/c/92f853f0645aebf1d05d333e97ab7c342ace1892 Added Reference https://git.kernel.org/stable/c/9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce Added Reference https://git.kernel.org/stable/c/ab438a9efb9042c79d2f8db28a326d55feb8591f
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.