CVE-2026-68253

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)

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138
https://git.kernel.org/stable/c/336cf6d80d41457442b659e7ba7a7badc0ffe79d
https://git.kernel.org/stable/c/389079bf04e6f0c6f10f5b879f6d7a9cf80f0567
https://git.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdef
https://git.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3
https://git.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6e
https://git.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-10 13:20

Updated : 2026-08-23 13:16

NVD link : CVE-2026-68253

Mitre link : CVE-2026-68253

CVE.ORG link : CVE-2026-68253

JSON object : View

Products Affected

No product.

CWE

No CWE.

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