8.8
HIGH
CVSS 3.1
CVE-2026-68107
drm/amdgpu/vcn4: avoid rereading IB param length
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)
Details
INFO
Published Date :
Aug. 10, 2026, 1:19 p.m.
Last Modified :
Aug. 17, 2026, 5:18 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
Address a race condition by using the correct IB parameter length.
- Update the Linux kernel to the patched version.
- Apply the fix for commit dbb02b4755f8c1f3773263f2d779872c1c0c073a.
- Ensure IB contents are read consistently.
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-2026-68107.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68107 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-2026-68107
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-2026-68107 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68107 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 Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cfdde9197ecd957281507be99af172671a57755c', 'lessThan': 'bbbe6a2a8d8dc87243438d3ffea2083b52d882d9', 'versionType': 'git'}, {'status': 'affected', 'version': '6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84', 'lessThan': 'ff6aa542d91d76a185f69bd1997b94a560ff5f6b', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'bd868c077f67589ed2a714307ceaade5f246e302', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'c309626bf91fa0a0b583575654e6e14e81f818a3', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': '3b4082fabc67c9780b06eb959e59dd92fa79c0f0', 'versionType': 'git'}, {'status': 'affected', 'version': 'b1dc92f55b22a80ded8f0263c9ef4ba902303895', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.107', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.48', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.16.8', 'lessThan': '6.17', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.17', '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': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cfdde9197ecd957281507be99af172671a57755c', 'lessThan': 'bbbe6a2a8d8dc87243438d3ffea2083b52d882d9', 'versionType': 'git'}, {'status': 'affected', 'version': '6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84', 'lessThan': 'ff6aa542d91d76a185f69bd1997b94a560ff5f6b', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'bd868c077f67589ed2a714307ceaade5f246e302', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'c309626bf91fa0a0b583575654e6e14e81f818a3', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': '3b4082fabc67c9780b06eb959e59dd92fa79c0f0', 'versionType': 'git'}, {'status': 'affected', 'version': 'b1dc92f55b22a80ded8f0263c9ef4ba902303895', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.107', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.48', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.16.8', 'lessThan': '6.17', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.17', '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': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 13, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'bbbe6a2a8d8dc87243438d3ffea2083b52d882d9', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'ff6aa542d91d76a185f69bd1997b94a560ff5f6b', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'bd868c077f67589ed2a714307ceaade5f246e302', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'c309626bf91fa0a0b583575654e6e14e81f818a3', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '3b4082fabc67c9780b06eb959e59dd92fa79c0f0', 'versionType': 'git'}, {'status': 'affected', 'version': '0', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.18.42', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.1.6', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'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': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cfdde9197ecd957281507be99af172671a57755c', 'lessThan': 'bbbe6a2a8d8dc87243438d3ffea2083b52d882d9', 'versionType': 'git'}, {'status': 'affected', 'version': '6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84', 'lessThan': 'ff6aa542d91d76a185f69bd1997b94a560ff5f6b', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'bd868c077f67589ed2a714307ceaade5f246e302', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': 'c309626bf91fa0a0b583575654e6e14e81f818a3', 'versionType': 'git'}, {'status': 'affected', 'version': '2b10cb58d7a3fd621ec9b2ba765a092e562ef998', 'lessThan': '3b4082fabc67c9780b06eb959e59dd92fa79c0f0', 'versionType': 'git'}, {'status': 'affected', 'version': 'b1dc92f55b22a80ded8f0263c9ef4ba902303895', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.107', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.48', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.16.8', 'lessThan': '6.17', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.17', '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': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 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': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'bbbe6a2a8d8dc87243438d3ffea2083b52d882d9', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'ff6aa542d91d76a185f69bd1997b94a560ff5f6b', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'bd868c077f67589ed2a714307ceaade5f246e302', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'c309626bf91fa0a0b583575654e6e14e81f818a3', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '3b4082fabc67c9780b06eb959e59dd92fa79c0f0', 'versionType': 'git'}, {'status': 'affected', 'version': '0', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.18.42', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.1.6', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'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': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a) Added Reference https://git.kernel.org/stable/c/3b4082fabc67c9780b06eb959e59dd92fa79c0f0 Added Reference https://git.kernel.org/stable/c/bbbe6a2a8d8dc87243438d3ffea2083b52d882d9 Added Reference https://git.kernel.org/stable/c/bd868c077f67589ed2a714307ceaade5f246e302 Added Reference https://git.kernel.org/stable/c/c309626bf91fa0a0b583575654e6e14e81f818a3 Added Reference https://git.kernel.org/stable/c/ff6aa542d91d76a185f69bd1997b94a560ff5f6b
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.