CVE-2026-68253
drm/i915/hdcp: check streams[] bounds before overflow
Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: check streams[] bounds before overflow The data->streams[] overflow check is done after the buffer overflow has already happened. Move the overflow check before the write. Side note, emitting a warning splat with a backtrace might be overkill here, but prefer not changing the behaviour other than not doing the overrun. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 9284ab3b6e776c315883ac2611283d263c9460fd)
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 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
- Update the Linux kernel to the patched version.
- Verify bounds check is performed before data writes.
- Apply the specific commit that resolves the issue.
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-2026-68253.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68253 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-2026-68253
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-2026-68253 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68253 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': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '84351f12390349ba010920fc247e1a0b12e41eb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '2106fb490b2c6003e23ad6ff36ce823a2170e138', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '3d2ef8d389495e7889c6062d8bddc46d2a5fbdef', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '984085c5b53572e2e03fd5fc4817e86ef1effc6e', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': 'bbb15a6b042d02e5508a02b4847e02d2579ee7bc', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/i915/display/intel_hdcp.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.12', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.103', '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/i915/display/intel_hdcp.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '84351f12390349ba010920fc247e1a0b12e41eb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '2106fb490b2c6003e23ad6ff36ce823a2170e138', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '3d2ef8d389495e7889c6062d8bddc46d2a5fbdef', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '984085c5b53572e2e03fd5fc4817e86ef1effc6e', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': 'bbb15a6b042d02e5508a02b4847e02d2579ee7bc', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/i915/display/intel_hdcp.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.12', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.103', '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/i915/display/intel_hdcp.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:U/C:H/I:H/A:H -
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': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '84351f12390349ba010920fc247e1a0b12e41eb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '2106fb490b2c6003e23ad6ff36ce823a2170e138', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '3d2ef8d389495e7889c6062d8bddc46d2a5fbdef', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': '984085c5b53572e2e03fd5fc4817e86ef1effc6e', 'versionType': 'git'}, {'status': 'affected', 'version': 'e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9', 'lessThan': 'bbb15a6b042d02e5508a02b4847e02d2579ee7bc', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/i915/display/intel_hdcp.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.12', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.103', '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/i915/display/intel_hdcp.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: check streams[] bounds before overflow The data->streams[] overflow check is done after the buffer overflow has already happened. Move the overflow check before the write. Side note, emitting a warning splat with a backtrace might be overkill here, but prefer not changing the behaviour other than not doing the overrun. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 9284ab3b6e776c315883ac2611283d263c9460fd) Added Reference https://git.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138 Added Reference https://git.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdef Added Reference https://git.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3 Added Reference https://git.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6e Added Reference https://git.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc