CVE-2026-72146
dmaengine: sh: rz-dmac: Move interrupt request after everything is set up
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: Move interrupt request after everything is set up Once the interrupt is requested, the interrupt handler may run immediately. Since the IRQ handler can access channel->ch_base, which is initialized only after requesting the IRQ, this may lead to invalid memory access. Likewise, the IRQ thread may access uninitialized data (the ld_free, ld_queue, and ld_active lists), which may also lead to issues. Request the interrupts only after everything is set up. To keep the error path simpler, use dmam_alloc_coherent() instead of dma_alloc_coherent().
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Request interrupts after all setup is complete.
- Use dmam_alloc_coherent() instead of dma_alloc_coherent().
- Apply provided kernel patches.
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-2026-72146.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72146 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-2026-72146
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-2026-72146 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72146 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:N/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': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '5b12de6229d662864ee22c11d4876652b40120f0', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': 'ec9f66c91bffdb69d309bae6dfb387562db7ebc8', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '07ae600bd353b22f31a8f1007269744fafc7f123', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '731712403ddb39d1a76a11abf339a0615bc85de7', 'versionType': 'git'}], 'programFiles': ['drivers/dma/sh/rz-dmac.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', '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/sh/rz-dmac.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '5b12de6229d662864ee22c11d4876652b40120f0', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': 'ec9f66c91bffdb69d309bae6dfb387562db7ebc8', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '07ae600bd353b22f31a8f1007269744fafc7f123', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '731712403ddb39d1a76a11abf339a0615bc85de7', 'versionType': 'git'}], 'programFiles': ['drivers/dma/sh/rz-dmac.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', '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/sh/rz-dmac.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': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '5b12de6229d662864ee22c11d4876652b40120f0', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': 'ec9f66c91bffdb69d309bae6dfb387562db7ebc8', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '07ae600bd353b22f31a8f1007269744fafc7f123', 'versionType': 'git'}, {'status': 'affected', 'version': '5000d37042a61ca556fde2782ca40dbfa802ea16', 'lessThan': '731712403ddb39d1a76a11abf339a0615bc85de7', 'versionType': 'git'}], 'programFiles': ['drivers/dma/sh/rz-dmac.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', '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/sh/rz-dmac.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: Move interrupt request after everything is set up Once the interrupt is requested, the interrupt handler may run immediately. Since the IRQ handler can access channel->ch_base, which is initialized only after requesting the IRQ, this may lead to invalid memory access. Likewise, the IRQ thread may access uninitialized data (the ld_free, ld_queue, and ld_active lists), which may also lead to issues. Request the interrupts only after everything is set up. To keep the error path simpler, use dmam_alloc_coherent() instead of dma_alloc_coherent(). Added Reference https://git.kernel.org/stable/c/07ae600bd353b22f31a8f1007269744fafc7f123 Added Reference https://git.kernel.org/stable/c/2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93 Added Reference https://git.kernel.org/stable/c/5b12de6229d662864ee22c11d4876652b40120f0 Added Reference https://git.kernel.org/stable/c/731712403ddb39d1a76a11abf339a0615bc85de7 Added Reference https://git.kernel.org/stable/c/ec9f66c91bffdb69d309bae6dfb387562db7ebc8