{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b03faa1fafc8018295401dc558bdc76362d860a4"
            },
            {
              "fixed": "5d0fa089d5ed497366ea5c000c6eefb346c7cb01"
            },
            {
              "fixed": "94a43efd71ad440c35dd469559d3a6d665f102d9"
            },
            {
              "fixed": "04069199816285c49199a35971f4298199609687"
            },
            {
              "fixed": "e607017a553d2a48e428ec8b8ffb06bf3bb92ce9"
            },
            {
              "fixed": "1512e3714b3946bda75a160a34f22a51710daa43"
            },
            {
              "fixed": "6a1833f0d7dc037c8e876b9178ba69d5d107c086"
            },
            {
              "fixed": "c223da71abfaea2ebb1c7208ae9ebf15038f9388"
            },
            {
              "fixed": "64a6b36b0e1855288080bc5f89769f27d6dc03c8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.19.299"
            },
            {
              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0b6153d04c96a1d4b6284692386aa21d04d7956c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0"
            },
            {
              "fixed": "5.10.273"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.224"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.191"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.160"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.57"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99032.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: protect clcsock lifetime in smc_getname\n\nsmc_getname() dereferences smc-\u003eclcsock without holding\nclcsock_release_lock. Link-group termination can release the CLC socket\nthrough smc_close_active_abort() while the SMC socket is still open,\nfor example after shutdown(SHUT_WR).\n\nA getsockname() caller can load smc-\u003eclcsock, then the termination worker\ncan clear the pointer and call sock_release() before the caller accesses\nclcsock-\u003eops or invokes getname(). This causes a use-after-free; if the\nworker clears the pointer before the load, it causes a NULL dereference.\nThe syscall's file reference keeps the SMC socket alive but does not\nprevent asynchronous release of its CLC socket.\n\nKASAN reported the following with test-only timing instrumentation:\n\n  BUG: KASAN: slab-use-after-free in smc_getname+0x19e/0x1b0\n  Read of size 8 at addr ffff888109abb4e0 by task poc/103\n  Call Trace:\n   smc_getname+0x19e/0x1b0\n   do_getsockname+0xe5/0x170\n   __sys_getsockname+0x8c/0x100\n\n  Allocated by task 95:\n   sock_alloc_inode+0x1e/0x280\n   sock_alloc+0x3d/0x240\n   __sock_create+0x7e/0x430\n   smc_create+0x121/0x240\n\n  Freed by task 0:\n   kmem_cache_free+0xcc/0x340\n   rcu_core+0x50a/0x1850\n\n  Last potentially related work creation:\n   evict+0x446/0x6c0\n   smc_clcsock_release+0xa8/0xd0\n   smc_close_active_abort+0x26a/0x3a0\n   __smc_lgr_terminate.part.0+0x137/0x2e0\n\nHold clcsock_release_lock across the pointer check and the getname()\ncallback to serialize with smc_clcsock_release(). Return -EBADF if the\nCLC socket has already been released, preserving the existing peer\nstate check and the callback's return value otherwise.",
  "id": "CVE-2026-99032",
  "modified": "2026-11-01T02:30:24.015221231Z",
  "published": "2026-10-23T12:21:36.202Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04069199816285c49199a35971f4298199609687"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1512e3714b3946bda75a160a34f22a51710daa43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d0fa089d5ed497366ea5c000c6eefb346c7cb01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64a6b36b0e1855288080bc5f89769f27d6dc03c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a1833f0d7dc037c8e876b9178ba69d5d107c086"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94a43efd71ad440c35dd469559d3a6d665f102d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c223da71abfaea2ebb1c7208ae9ebf15038f9388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e607017a553d2a48e428ec8b8ffb06bf3bb92ce9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99032.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99032"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "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": "net/smc: protect clcsock lifetime in smc_getname"
}