{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d4dd9775ec242425576af93daadb80a34083a53c"
            },
            {
              "fixed": "44b8d370f2725bad215da3e67668e98ba96671bd"
            },
            {
              "fixed": "3014e8a8bdad55075d89836ad9c10710a9a69837"
            },
            {
              "fixed": "19e8d5a98afd071d8c1c5adeccf92b3c42eddc70"
            },
            {
              "fixed": "9d02927fdf4e930893c92e35fed01a2704496900"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98045.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark faultable stack helpers as sleepable\n\nThe faultable variants of bpf_get_stack() and bpf_get_task_stack() pass\nmay_fault=true into the common stack collection code. Resolving user-space\nbuild IDs may then call build_id_parse_file() and block on filesystem\nreads.\n\nNeither helper prototype sets might_sleep. Since prototype selection uses\nthe sleepability of the whole program, the verifier can still allow these\nhelpers from a non-sleepable region within that program, such as an\nexplicit RCU or preemption-disabled region. The task-stack helper can also\nbe called from a non-sleepable timer callback of a sleepable program.\n\nMark both faultable prototypes as sleepable. The existing helper context\ncheck then rejects these calls while continuing to allow them in genuinely\nsleepable contexts.",
  "id": "CVE-2026-98045",
  "modified": "2026-09-27T03:30:41.253557307Z",
  "published": "2026-09-25T10:23:56.089Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19e8d5a98afd071d8c1c5adeccf92b3c42eddc70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3014e8a8bdad55075d89836ad9c10710a9a69837"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44b8d370f2725bad215da3e67668e98ba96671bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d02927fdf4e930893c92e35fed01a2704496900"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98045.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98045"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Mark faultable stack helpers as sleepable"
}