CVE-2026-68253

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Last modified

CVE-2026-68253 is a vulnerability of currently unknown severity. 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).

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)

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9, < 84351f12390349ba010920fc247e1a0b12e41eb3; >= e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9, < 2106fb490b2c6003e23ad6ff36ce823a2170e138; >= e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9, < 3d2ef8d389495e7889c6062d8bddc46d2a5fbdef; >= e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9, < 984085c5b53572e2e03fd5fc4817e86ef1effc6e; >= e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9, < bbb15a6b042d02e5508a02b4847e02d2579ee7bc
LinuxLinux5.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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)
How severe is CVE-2026-68253?
Severity scoring for CVE-2026-68253 is pending analysis.
How do I fix CVE-2026-68253?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST