ila: call nf_unregister_net_hooks() sooner

{
  "id": "515e6e11ab6e7ac4c43ceb1a4ffd2e3f49359561174f66a745def95b69f85216",
  "url": "https://osv.dev/vulnerability/CVE-2024-46782",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ila: call nf_unregister_net_hooks() sooner",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ila: call nf_unregister_net_hooks() sooner syzbot found an use-after-free Read in ila_nf_input [1] Issue here is that ila_xlat_exit_net() frees the rhashtable, then call nf_unregister_net_hooks(). It should be done in the reverse way, with a synchronize_rcu(). This is a good match for a pre_exit() method. [1] BUG: KASAN: use-after-free in rht_key_hashfn include/linux/rhashtable.h:159 [inline] BUG: KASAN: use-after-free in __rhashtable_lookup include/linux/rhashtable.h:604 [inline] BUG: KASAN: use-after-free in rhashtable_lookup include/linux/rhashtable.h:646 [inline] BUG: KASAN: use-after-free in rhashtable_lookup_fast+0x77a/0x9b0 include/linux/rhashtable.h:672 Read of size 4 at addr ffff888064620008 by task ksoftirqd/0/16 CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.11.0-rc4-syzkaller-00238-g2ad6d23f465a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 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 rht_key_hashfn include/linux/rhashtable.h:159 [inline] __rhashtable_lookup include/linux/rhashtable.h:604 [inline] rhashtable_lookup include/linux/rhashtable.h:646 [inline] rhashtable_lookup_fast+0x77a/0x9b0 include/linux/rhashtable.h:672 ila_lookup_wildcards ",
    "evidence": "osv:CVE-2024-46782",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.322",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.284",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.226",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.167",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-46782",
      "aliases": [
        "CVE-2024-46782"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7f00feaf107645d95a6d87e99b4d141ac0a08efd"
                },
                {
                  "fixed": "43d34110882b97ba1ec66cc8234b18983efb9abf"
                },
                {
                  "fixed": "dcaf4e2216824839d26727a15b638c6a677bd9fc"
                },
                {
                  "fixed": "93ee345ba349922834e6a9d1dadabaedcc12dce6"
                },
                {
                  "fixed": "bda4d84ac0d5421b346faee720011f58bdb99673"
                },
                {
                  "fixed": "925c18a7cff93d8a4320d652351294ff7d0ac93c"
                },
                {
                  "fixed": "18a5a16940464b301ea91bf5da3a324aedb347b2"
                },
                {
                  "fixed": "47abd8adddbc0aecb8f231269ef659148d5dabe4"
                },
                {
                  "fixed": "031ae72825cef43e4650140b800ad58bf7a6a466"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46782.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.5.0"
                },
                {
                  "fixed": "4.19.322"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.284"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.226"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.167"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.110"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.51"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.10.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46782.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.980701216Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/031ae72825cef43e4650140b800ad58bf7a6a466",
        "https://git.kernel.org/stable/c/18a5a16940464b301ea91bf5da3a324aedb347b2",
        "https://git.kernel.org/stable/c/43d34110882b97ba1ec66cc8234b18983efb9abf",
        "https://git.kernel.org/stable/c/47abd8adddbc0aecb8f231269ef659148d5dabe4",
        "https://git.kernel.org/stable/c/925c18a7cff93d8a4320d652351294ff7d0ac93c",
        "https://git.kernel.org/stable/c/93ee345ba349922834e6a9d1dadabaedcc12dce6",
        "https://git.kernel.org/stable/c/bda4d84ac0d5421b346faee720011f58bdb99673",
        "https://git.kernel.org/stable/c/dcaf4e2216824839d26727a15b638c6a677bd9fc",
        "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46782.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-46782",
        "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/2024/46xxx/CVE-2024-46782.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-46782",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 518238,
  "published_at": "2024-09-18T07:12:38.652+00:00"
}