nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies

{
  "id": "24584f9341636991d8502346ed82f747230c850e9f056ca53c22e1a91c49f059",
  "url": "https://osv.dev/vulnerability/CVE-2024-36915",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies syzbot reported unsafe calls to copy_from_sockptr() [1] Use copy_safe_from_sockptr() instead. [1] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in nfc_llcp_setsockopt+0x6c2/0x850 net/nfc/llcp_sock.c:255 Read of size 4 at addr ffff88801caa1ec3 by task syz-executor459/5078 CPU: 0 PID: 5078 Comm: syz-executor459 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] copy_from_sockptr include/linux/sockptr.h:55 [inline] nfc_llcp_setsockopt+0x6c2/0x850 net/nfc/llcp_sock.c:255 do_sock_setsockopt+0x3b1/0x720 net/socket.c:2311 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f7fac07fd89 Code: 2",
    "evidence": "osv:CVE-2024-36915",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.119",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.47",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-36915",
      "aliases": [
        "CVE-2024-36915"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "26fd76cab2e61cedc5c25f7151fb31b57ddc53c7"
                },
                {
                  "fixed": "298609e7069ce74542a2253a39ccc9717f1d877a"
                },
                {
                  "fixed": "0f106133203021533cb753e80d75896f4ad222f8"
                },
                {
                  "fixed": "29dc0ea979d433dd3c26abc8fa971550bdc05107"
                },
                {
                  "fixed": "7a87441c9651ba37842f4809224aca13a554a26f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36915.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "3.10.0"
                },
                {
                  "fixed": "6.1.119"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.47"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.8.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36915.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.923118236Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0f106133203021533cb753e80d75896f4ad222f8",
        "https://git.kernel.org/stable/c/298609e7069ce74542a2253a39ccc9717f1d877a",
        "https://git.kernel.org/stable/c/29dc0ea979d433dd3c26abc8fa971550bdc05107",
        "https://git.kernel.org/stable/c/7a87441c9651ba37842f4809224aca13a554a26f",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36915.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-36915",
        "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/2024/36xxx/CVE-2024-36915.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-36915",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510714,
  "published_at": "2024-05-30T15:29:12.158+00:00"
}