scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress

{
  "id": "a0633e5d3bccad08076bb1afcf3158c1ddeb19ab751a499381f79a3813c8b7ef",
  "url": "https://osv.dev/vulnerability/CVE-2023-52975",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress Bug report and analysis from Ding Hui. During iSCSI session logout, if another task accesses the shost ipaddress attr, we can get a KASAN UAF report like this: [ 276.942144] BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x78/0xe0 [ 276.942535] Write of size 4 at addr ffff8881053b45b8 by task cat/4088 [ 276.943511] CPU: 2 PID: 4088 Comm: cat Tainted: G E 6.1.0-rc8+ #3 [ 276.943997] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 [ 276.944470] Call Trace: [ 276.944943] [ 276.945397] dump_stack_lvl+0x34/0x48 [ 276.945887] print_address_description.constprop.0+0x86/0x1e7 [ 276.946421] print_report+0x36/0x4f [ 276.947358] kasan_report+0xad/0x130 [ 276.948234] kasan_check_range+0x35/0x1c0 [ 276.948674] _raw_spin_lock_bh+0x78/0xe0 [ 276.949989] iscsi_sw_tcp_host_get_param+0xad/0x2e0 [iscsi_tcp] [ 276.951765] show_host_param_ISCSI_HOST_PARAM_IPADDRESS+0xe9/0x130 [scsi_transport_iscsi] [ 276.952185] dev_attr_show+0x3f/0x80 [ 276.953005] sysfs_kf_seq_show+0x1fb/0x3e0 [ 276.953401] seq_read_iter+0x402/0x1020 [ 276.954260] vfs_read+0x532/0x7b0 [ 276.955113] ksys_read+0xed/0x1c0 [ 276.955952] do_syscall_64+0x38/0x90 [ 276.956347] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 276.956769] RIP: 0033:0x7f5d3a679222 [ 276.957161] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 32 c0 0b 00 e8 a5 fe 01 00 0f 1f",
    "evidence": "osv:CVE-2023-52975",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.248",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.93",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-52975",
      "aliases": [
        "CVE-2023-52975"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8"
                },
                {
                  "fixed": "0af745fddefbd56198f4f35eb309215ee5f9e21e"
                },
                {
                  "fixed": "17b738590b97fb3fc287289971d1519ff9b875a1"
                },
                {
                  "fixed": "8859687f5b242c0b057461df0a9ff51d5500783b"
                },
                {
                  "fixed": "6f1d64b13097e85abda0f91b5638000afc5f9a06"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52975.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.39"
                },
                {
                  "fixed": "5.10.248"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.93"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52975.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.652171614Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0af745fddefbd56198f4f35eb309215ee5f9e21e",
        "https://git.kernel.org/stable/c/17b738590b97fb3fc287289971d1519ff9b875a1",
        "https://git.kernel.org/stable/c/6f1d64b13097e85abda0f91b5638000afc5f9a06",
        "https://git.kernel.org/stable/c/8859687f5b242c0b057461df0a9ff51d5500783b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52975.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52975",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52975.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52975",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505949,
  "published_at": "2025-03-27T16:43:15.322+00:00"
}