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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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)
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.