{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  accel/rocket: fix NULL dereference and integer overflow in rocket_job_push()  rocket_job_push() allocates a temporary array to hold all input and output GEM object pointers:      bos = kvmalloc_array(job-\u003ein_bo_count + job-\u003eout_bo_count,                          sizeof(void *), GFP_KERNEL);     memcpy(bos, job-\u003ein_bos, job-\u003ein_bo_count * sizeof(void *));     memcpy(\u0026bos[job-\u003ein_bo_count], job-\u003eout_bos, ...);  Two bugs exist:  1. Missing NULL check: if kvmalloc_array() fails, bos is NULL and    the subsequent memcpy() dereferences it, causing a kernel NULL    pointer dereference.  2. Integer overflow: in_bo_count and out_bo_count are both u32, set    directly from userspace-supplied in_bo_handle_count and    out_bo_handle_count with no prior validation. Their sum is computed    in u32 arithmetic and can wrap to a smaller value, causing the    allocation count passed to kvmalloc_array() to be smaller than    intended. Subsequent uses still operate on the original counts when    copying and locking objects, which may lead to out-of-bounds accesses    on the temporary array.  Fix by using check_add_overflow() to detect count overflow before the allocation, and adding a NULL check on the allocation result.",
  "id": "DEBIAN-CVE-2026-89592",
  "modified": "2026-09-12T08:47:18.345053185Z",
  "published": "2026-09-11T20:19:43.807Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89592"
    }
  ],
  "upstream": [
    "CVE-2026-89592"
  ]
}