{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3791163602f7140011a8dc1691cfe6ec0cb1ef07"
            },
            {
              "fixed": "03c3af594dea9196cf6ca70d914b42aa8c873c35"
            },
            {
              "fixed": "d4d73decdb9a44a248b1cbd04ed6f334df544d9c"
            },
            {
              "fixed": "9a671125d4228357e5b929733c4593d27a273749"
            },
            {
              "fixed": "fedea72e8f312fe7d0c6cb19353e61d2d5643b11"
            },
            {
              "fixed": "a4e9aa7907ade87d1d96853d14e05dcf682f8363"
            },
            {
              "fixed": "db8147c5d5ad2cfa21c2be566f95981b41b05de6"
            },
            {
              "fixed": "d715d19cfcfe99f361adb05cefc143a95d400b87"
            },
            {
              "fixed": "25c7e242aca084fdc1098248194032317dca625d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81008.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ninterconnect: Fix use after free in icc_get() and of_icc_get_by_index()\n\nIn of_icc_get_by_index() and icc_get(), if the dynamic allocation for\npath-\u003ename fails via kasprintf(), the error handling path directly\ncalls kfree(path) to free the path object and returns an error.\n\nHowever, prior to this point, path_find() calls path_init(), which\nalready links the path's requests into the req_list of the respective\ninterconnect nodes via hlist_add_head(). Directly invoking kfree(path)\nleaves dangling pointers in the hlist. A subsequent call to icc_get()\nor icc_set_bw() will traverse or modify these corrupted lists, triggering\na slab use afterfree.\n\nKASAN report showing the vulnerability when reproducing via debugfs:\n\n  BUG: KASAN: slab-use-after-free in path_find+0x6f8/0xcfc\n  Write of size 8 at addr fff000000d43f748 by task sh/1\n  ...\n  Call trace:\n   kasan_report+0xac/0xfc\n   path_find+0x6f8/0xcfc\n   icc_get+0x148/0x380\n   icc_get_set+0xf8/0x2d0\n  ...\n  Freed by task 1:\n   kfree+0x1a0/0x4a4\n   icc_get+0x2cc/0x380\n   icc_get_set+0xf8/0x2d0\n\nFix this by replacing kfree(path) with the proper teardown function,\nicc_put(path), which safely removes the requests from the req_list using\nhlist_del() and drops the provider usage references before freeing the\nmemory.\n\nAdditionally, in icc_get(), ensure that the icc_lock mutex is released\nprior to calling icc_put(path) to avoid a deadlock, as icc_put()\ninternally acquires the same lock.",
  "id": "CVE-2026-81008",
  "modified": "2026-09-15T03:30:54.868179257Z",
  "published": "2026-09-11T19:42:59.405Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03c3af594dea9196cf6ca70d914b42aa8c873c35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25c7e242aca084fdc1098248194032317dca625d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a671125d4228357e5b929733c4593d27a273749"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4e9aa7907ade87d1d96853d14e05dcf682f8363"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4d73decdb9a44a248b1cbd04ed6f334df544d9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d715d19cfcfe99f361adb05cefc143a95d400b87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db8147c5d5ad2cfa21c2be566f95981b41b05de6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fedea72e8f312fe7d0c6cb19353e61d2d5643b11"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81008.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81008"
    },
    {
      "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": "interconnect: Fix use after free in icc_get() and of_icc_get_by_index()"
}