{"id":"CVE-2026-68253","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-68253","summary":"drm/i915/hdcp: check streams[] bounds before overflow","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/hdcp: check streams[] bounds before overflow\n\nThe data->streams[] overflow check is done after the buffer overflow has\nalready happened. Move the overflow check before the write.\n\nSide note, emitting a warning splat with a backtrace might be overkill\nhere, but prefer not changing the behaviour other than not doing the\noverrun.\n\nDiscovered using AI-assisted static analysis confirmed by Intel Product\nSecurity.\n\n(cherry picked from commit 9284ab3b6e776c315883ac2611283d263c9460fd)","published":"2026-08-10T12:01:19.402Z","modified":"2026-08-14T04:03:33.161631360Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.6.151"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68253.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68253"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T04:03:33.161631360Z"}}