{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7a4408c6bd3eb1dafba67986259191be081e3efb"
            },
            {
              "fixed": "1f96f8c0a6ed4f6d01d3dd29ad0cbf08dde96082"
            },
            {
              "fixed": "df1a17abba8d6fac5f965adcb8113ceace6e4949"
            },
            {
              "fixed": "38e1a71728e5795b670cc159c18e286a40aeebb4"
            },
            {
              "fixed": "faa070c7ad8ba25dcd0b12d7cdbb419e336f5391"
            },
            {
              "fixed": "e63032dc715026a96bcaa13d375a8e15c91caa84"
            },
            {
              "fixed": "ea02df466df60ecd758eb3b4df3f0cadc5c886ce"
            },
            {
              "fixed": "ef5439ba5b9ac93349f5df12ef88b42a0ce26340"
            },
            {
              "fixed": "114a116aaa5f0295376cdf12da743c5bce3b20ce"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.14.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64469.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix UAF in binder_thread_release()\n\nWhen a thread exits, binder_thread_release() walks its transaction stack\nto clear the t-\u003efrom and t-\u003eto_proc that correspond with the exiting\nthread. However, a process dying in parallel might attempt to kfree some\nof these transactions. And if one of them has no associated t-\u003eto_proc,\nthe t-\u003eto_proc-\u003einner_lock will not be acquired.\n\nThis means that transaction accesses in binder_thread_release() after\nt-\u003eto_proc has been cleared might race with binder_free_transaction()\nand cause a use-after-free error as reported by KASAN:\n\n  ==================================================================\n  BUG: KASAN: slab-use-after-free in binder_thread_release+0x5d0/0x798\n  Write of size 8 at addr ffff000016627500 by task X/715\n\n  CPU: 17 UID: 0 PID: 715 Comm: X Not tainted 7.1.0-rc5-00149-g8fde5d1d47f6 #30 PREEMPT\n  Hardware name: linux,dummy-virt (DT)\n  Call trace:\n   binder_thread_release+0x5d0/0x798\n   binder_ioctl+0x12c0/0x299c\n   [...]\n\n  Allocated by task 717 on cpu 18 at 67.267803s:\n   __kasan_kmalloc+0xa0/0xbc\n   __kmalloc_cache_noprof+0x174/0x444\n   binder_transaction+0x554/0x8150\n   binder_thread_write+0xa30/0x4354\n   binder_ioctl+0x20f0/0x299c\n   [...]\n\n  Freed by task 202 on cpu 18 at 90.416221s:\n   __kasan_slab_free+0x58/0x80\n   kfree+0x1a0/0x4a4\n   binder_free_transaction+0x150/0x294\n   binder_send_failed_reply+0x398/0x6d8\n   binder_release_work+0x3e4/0x4ec\n   binder_deferred_func+0xbd8/0x104c\n   [...]\n  ==================================================================\n\nIn order to avoid this, make sure that binder_free_transaction() reads\nthe t-\u003eto_proc under the transaction lock. This will serialize the\ntransaction release with the accesses in binder_thread_release(). Plus,\nit matches the documented locking rules for @to_proc.",
  "id": "CVE-2026-64469",
  "modified": "2026-08-18T03:30:57.893786418Z",
  "published": "2026-07-25T08:51:34.025Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/114a116aaa5f0295376cdf12da743c5bce3b20ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f96f8c0a6ed4f6d01d3dd29ad0cbf08dde96082"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38e1a71728e5795b670cc159c18e286a40aeebb4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df1a17abba8d6fac5f965adcb8113ceace6e4949"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e63032dc715026a96bcaa13d375a8e15c91caa84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea02df466df60ecd758eb3b4df3f0cadc5c886ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef5439ba5b9ac93349f5df12ef88b42a0ce26340"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faa070c7ad8ba25dcd0b12d7cdbb419e336f5391"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64469.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64469"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "binder: fix UAF in binder_thread_release()"
}