CVE-2026-74416
drm/radeon: fix memory leak in radeon_ring_restore() on lock failure
Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix memory leak in radeon_ring_restore() on lock failure radeon_ring_restore() takes ownership of the data buffer allocated by radeon_ring_backup(). The caller (radeon_gpu_reset()) only frees it in the non-restore branch; in the restore branch it relies on radeon_ring_restore() to free it. If radeon_ring_lock() fails, the function returned early without calling kvfree(data), leaking the ring backup buffer on every GPU reset that fails at the lock stage. During repeated GPU resets this causes cumulative kernel memory exhaustion. Free data before returning the error.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 15, 2026, 6:22 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74416
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Free data before returning error in radeon_ring_restore.
- Apply the kernel patch to fix memory leak.
- Ensure all GPU resets do not fail at lock stage.
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-2026-74416.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74416 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-2026-74416
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-2026-74416 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74416 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.
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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': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '63912418f1fbb6456ea04bbcdf8f4d5090d23350', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '919e3e398bf301c6418dffdcd5e5c4fd9be39cf7', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '07c213f3499dd72e2922c1c73fe9ffea24874bef', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '1c9ba32308c02c198c378fcdf06be9ffc3111147', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': 'eecfb76129ebef7e3aa41e18a4668cd91dfc6267', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '06dc892561f5a08b2493c34c8ec2cb94dea33159', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': 'ccc42187fc2d0720947a63ce1b9e399d2c068ff4', 'versionType': 'git'}, {'status': 'affected', 'version': '55d7c22192becd0ec827a6901899ff56fa985658', 'lessThan': '82f1d6042611d45b8b9de423bbcb4e0ced9ec62b', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/radeon/radeon_ring.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.6'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.6', '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/gpu/drm/radeon/radeon_ring.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix memory leak in radeon_ring_restore() on lock failure radeon_ring_restore() takes ownership of the data buffer allocated by radeon_ring_backup(). The caller (radeon_gpu_reset()) only frees it in the non-restore branch; in the restore branch it relies on radeon_ring_restore() to free it. If radeon_ring_lock() fails, the function returned early without calling kvfree(data), leaking the ring backup buffer on every GPU reset that fails at the lock stage. During repeated GPU resets this causes cumulative kernel memory exhaustion. Free data before returning the error. Added Reference https://git.kernel.org/stable/c/06dc892561f5a08b2493c34c8ec2cb94dea33159 Added Reference https://git.kernel.org/stable/c/07c213f3499dd72e2922c1c73fe9ffea24874bef Added Reference https://git.kernel.org/stable/c/1c9ba32308c02c198c378fcdf06be9ffc3111147 Added Reference https://git.kernel.org/stable/c/63912418f1fbb6456ea04bbcdf8f4d5090d23350 Added Reference https://git.kernel.org/stable/c/82f1d6042611d45b8b9de423bbcb4e0ced9ec62b Added Reference https://git.kernel.org/stable/c/919e3e398bf301c6418dffdcd5e5c4fd9be39cf7 Added Reference https://git.kernel.org/stable/c/ccc42187fc2d0720947a63ce1b9e399d2c068ff4 Added Reference https://git.kernel.org/stable/c/eecfb76129ebef7e3aa41e18a4668cd91dfc6267