{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320"
            },
            {
              "fixed": "4d6fe49fa3e7fbd779c761518e6572e340233c9b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "a77e0e02af1c2db5fc040511aa78a58a52e116ab"
            },
            {
              "fixed": "c9f2872e91b9fe99c1d0ba768906f7aeb48c8517"
            },
            {
              "fixed": "7a98c3b903b10c4d6176948254012b5ca24b071b"
            },
            {
              "fixed": "abb5146b2d8197d695ea9eaa0847c73e34f00985"
            },
            {
              "fixed": "1c3ebf832d010c08afe1359215d4121cb1ed2de5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.141"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90175.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer\n\nFree it unconditionally after ksmbd_alloc_user() calls.\n\nkmemleak splat:\n  unreferenced object 0xffff888103b83540 (size 192):\n    comm \"pool-0\", pid 16970, jiffies 4377290937\n    hex dump (first 32 bytes):\n      00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace (crc 408ccc66):\n      __kvmalloc_node_noprof+0x730/0x920\n      handle_generic_event+0xec/0x1a0 [ksmbd]\n      genl_family_rcv_msg_doit+0xe0/0x130\n      genl_rcv_msg+0x181/0x290\n      netlink_rcv_skb+0x4f/0x100\n      genl_rcv+0x28/0x40\n      netlink_unicast+0x1e6/0x2c0\n      netlink_sendmsg+0x20a/0x450\n      ____sys_sendmsg+0x2e8/0x310\n      ___sys_sendmsg+0x78/0xc0\n      __sys_sendmsg+0x63/0xc0\n      do_syscall_64+0xa1/0x670\n      entry_SYSCALL_64_after_hwframe+0x76/0x7e",
  "id": "CVE-2026-90175",
  "modified": "2026-09-18T03:30:18.883247081Z",
  "published": "2026-09-17T16:07:01.769Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90175.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90175"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer"
}