{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4346ba1604093305a287e08eb465a9c15ba05b80"
            },
            {
              "fixed": "56b4cfcf1518245493c60fd39c56978f508f1816"
            },
            {
              "fixed": "a4f6a9005ed6cfd360ef2520430927f05f92ffb0"
            },
            {
              "fixed": "657b594b2084b39a4bc6d8493aa2140cb00cea49"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64075.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfprobe: Fix unregister_fprobe() to wait for RCU grace period\n\nCommit 4346ba1604093 (\"fprobe: Rewrite fprobe on function-graph tracer\")\nchanged fprobe to register struct fprobe to an rcu-hlist, but it forgot\nto wait for RCU GP. Thus there can be use-after-free if the fprobe is\nreleased right after unregistering. This can be happened on fprobe\nevent and sample module code.\n\nTo fix this issue, add synchronize_rcu() in unregister_fprobe().\n\nNote that BPF is OK because fprobe is used as a part of\nbpf_kprobe_multi_link. This unregisters its fprobe in\nbpf_kprobe_multi_link_release() and it is deallocated via\nbpf_kprobe_multi_link_dealloc(), which is invoked from\nbpf_link_defer_dealloc_rcu_gp() RCU callback.\n\nFor BPF, this also introduced unregister_fprobe_async() which does\nNOT wait for RCU grace priod.",
  "id": "CVE-2026-64075",
  "modified": "2026-08-12T03:51:16.166442578Z",
  "published": "2026-07-19T15:39:49.679Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56b4cfcf1518245493c60fd39c56978f508f1816"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/657b594b2084b39a4bc6d8493aa2140cb00cea49"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4f6a9005ed6cfd360ef2520430927f05f92ffb0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64075.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64075"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "fprobe: Fix unregister_fprobe() to wait for RCU grace period"
}