{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a370003cc301d4361bae20c9ef615f89bf8d1e8a"
            },
            {
              "fixed": "5602a43f251c3d75312df91a422675fc00ca3dce"
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            {
              "fixed": "0be901ab1dcc4af59b88f2e324493bb283850167"
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            },
            {
              "fixed": "328ccf32acb87e8bbb1fe2b065068c574e4db2bf"
            },
            {
              "fixed": "0f15f0f6ca5df566275ce517f257af2559528b41"
            },
            {
              "fixed": "f223d27a546c1e1f48d38fd67760e78f068fe8c4"
            }
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a4a3c070b8760f71c8311399fa9bfe67c8629bca"
            },
            {
              "last_affected": "22068d49d09d2b3890e19d7b2048a33340f992da"
            },
            {
              "last_affected": "0e3b977a8f1be01dcfa0baae68851b1f55f2a0a9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
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            },
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
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              "introduced": "5.1.15"
            },
            {
              "fixed": "5.2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
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            {
              "introduced": "5.11.0"
            },
            {
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            }
          ],
          "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"
            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
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  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64468.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix UAF in binder_free_transaction()\n\nIn binder_free_transaction(), the t-\u003eto_proc is read under the t-\u003elock.\nHowever, once the t-\u003elock is dropped, the to_proc can die in parallel.\nThis leads to a use-after-free error when we attempt to acquire its\ninner lock right afterwards:\n\n  ==================================================================\n  BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x1a0\n  Write of size 4 at addr ffff00001125da70 by task B/672\n\n  CPU: 20 UID: 0 PID: 672 Comm: B Not tainted 7.1.0-rc6-00284-g8e65320d91cd #4 PREEMPT\n  Hardware name: linux,dummy-virt (DT)\n  Call trace:\n   _raw_spin_lock+0xe4/0x1a0\n   binder_free_transaction+0x8c/0x320\n   binder_send_failed_reply+0x21c/0x2f8\n   binder_thread_release+0x488/0x7e0\n   binder_ioctl+0x12c0/0x29a0\n  [...]\n\n  Allocated by task 675:\n   __kmalloc_cache_noprof+0x174/0x444\n   binder_open+0x118/0xb70\n   do_dentry_open+0x374/0x1040\n   vfs_open+0x58/0x3bc\n  [...]\n\n  Freed by task 212:\n   __kasan_slab_free+0x58/0x80\n   kfree+0x1a0/0x4a4\n   binder_proc_dec_tmpref+0x32c/0x5e0\n   binder_deferred_func+0xc48/0x104c\n   process_one_work+0x53c/0xbc0\n  [...]\n  ==================================================================\n\nTo prevent this, pin the target thread (t-\u003eto_thread) to guarantee the\ntarget process remains alive. Undelivered transactions without a target\nthread are already safe, as the target process can only be the current\ncontext in those paths.",
  "id": "CVE-2026-64468",
  "modified": "2026-08-18T03:31:01.813383002Z",
  "published": "2026-07-25T08:51:33.364Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0be901ab1dcc4af59b88f2e324493bb283850167"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f15f0f6ca5df566275ce517f257af2559528b41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/328ccf32acb87e8bbb1fe2b065068c574e4db2bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45df558c543bb5543bacc8065fd7c567740781e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48aeda9f8039e4a6971d1804578efde7f2c01eda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5602a43f251c3d75312df91a422675fc00ca3dce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d45ef513eed1abebfec90c3cfb6ae50c2a4182db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f223d27a546c1e1f48d38fd67760e78f068fe8c4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64468.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64468"
    },
    {
      "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_free_transaction()"
}