CVE-2026-68400 firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/firmware/arm_ffa/driver.c",
      "include/linux/arm_ffa.h"
    ],
    "versions": [
      {
        "version": "113580530ee7dc61e668b641d657920734533b9f",
        "lessThan": "b39b08e6bee812514b449dc874076890e6b871a0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "113580530ee7dc61e668b641d657920734533b9f",
        "lessThan": "8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "113580530ee7dc61e668b641d657920734533b9f",
        "lessThan": "b4d961351aa84fdf0148783fb1f3a1391b8a0adb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/firmware/arm_ffa/driver.c",
      "include/linux/arm_ffa.h"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc4",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]