{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3"
            },
            {
              "fixed": "22107402c2669b0163d43cc68901a2c4a59fa43a"
            },
            {
              "fixed": "314f1a6762b5d51b37784ed7dc701d4c3d893703"
            },
            {
              "fixed": "da64b150e4b7bee615b33ab21f3137c31ec36922"
            },
            {
              "fixed": "8ed9bff906cf8036531d1559f10e82733a52b41f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90306.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9481/2: breakpoint: CFI breakpoints only on demand\n\nThis removes the stub hw_breakpoint_cfi_handler() from ARM, making\nit not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless\nCFI is actively used in the kernel.\n\nWhen not instrumenting with CFI, or when a breakpoint is issued in\nuserspace, we fall through to return 1 from hw_breakpoint_pending()\n\"unhandled fault\" so userspace can make use of this breakpoint.\n\nTested with LKDTM and this command line:\necho CFI_FORWARD_PROTO \u003e /sys/kernel/debug/provoke-crash/DIRECT\nstill works as expected.",
  "id": "CVE-2026-90306",
  "modified": "2026-09-19T03:30:26.402183344Z",
  "published": "2026-09-17T16:08:28.387Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22107402c2669b0163d43cc68901a2c4a59fa43a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/314f1a6762b5d51b37784ed7dc701d4c3d893703"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ed9bff906cf8036531d1559f10e82733a52b41f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da64b150e4b7bee615b33ab21f3137c31ec36922"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90306.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90306"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ARM: 9481/2: breakpoint: CFI breakpoints only on demand"
}