{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-50310",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50310",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-15T14:46:05.486Z",
    "updatedAt": "2026-08-05T08:58:08.862Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed\n\nIf the initialization fails in calling addrconf_init_net(), devconf_all is\nthe pointer that has been released. Then ip6mr_sk_done() is called to\nrelease the net, accessing devconf->mc_forwarding directly causes invalid\npointer access.\n\nThe process is as follows:\nsetup_net()\n\tops_init()\n\t\taddrconf_init_net()\n\t\tall = kmemdup(...)           ---> alloc \"all\"\n\t\t...\n\t\tnet->ipv6.devconf_all = all;\n\t\t__addrconf_sysctl_register() ---> failed\n\t\t...\n\t\tkfree(all);                  ---> ipv6.devconf_all invalid\n\t\t...\n\tops_exit_list()\n\t\t...\n\t\tip6mr_sk_done()\n\t\t\tdevconf = net->ipv6.devconf_all;\n\t\t\t//devconf is invalid pointer\n\t\t\tif (!devconf || !atomic_read(&devconf->mc_forwarding))\n\nThe following is the Call Trace information:\nBUG: KASAN: use-after-free in ip6mr_sk_done+0x112/0x3a0\nRead of size 4 at addr ffff888075508e88 by task ip/14554\nCall Trace:\n<TASK>\ndump_stack_lvl+0x8e/0xd1\nprint_report+0x155/0x454\nkasan_report+0xba/0x1f0\nkasan_check_range+0x35/0x1b0\nip6mr_sk_done+0x112/0x3a0\nrawv6_close+0x48/0x70\ninet_release+0x109/0x230\ninet6_release+0x4c/0x70\nsock_release+0x87/0x1b0\nigmp6_net_exit+0x6b/0x170\nops_exit_list+0xb0/0x170\nsetup_net+0x7ac/0xbd0\ncopy_net_ns+0x2e6/0x6b0\ncreate_new_namespaces+0x382/0xa50\nunshare_nsproxy_namespaces+0xa6/0x1c0\nksys_unshare+0x3a4/0x7e0\n__x64_sys_unshare+0x2d/0x40\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0\nRIP: 0033:0x7f7963322547\n\n</TASK>\nAllocated by task 14554:\nkasan_save_stack+0x1e/0x40\nkasan_set_track+0x21/0x30\n__kasan_kmalloc+0xa1/0xb0\n__kmalloc_node_track_caller+0x4a/0xb0\nkmemdup+0x28/0x60\naddrconf_init_net+0x1be/0x840\nops_init+0xa5/0x410\nsetup_net+0x5aa/0xbd0\ncopy_net_ns+0x2e6/0x6b0\ncreate_new_namespaces+0x382/0xa50\nunshare_nsproxy_namespaces+0xa6/0x1c0\nksys_unshare+0x3a4/0x7e0\n__x64_sys_unshare+0x2d/0x40\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFreed by task 14554:\nkasan_save_stack+0x1e/0x40\nkasan_set_track+0x21/0x30\nkasan_save_free_info+0x2a/0x40\n____kasan_slab_free+0x155/0x1b0\nslab_free_freelist_hook+0x11b/0x220\n__kmem_cache_free+0xa4/0x360\naddrconf_init_net+0x623/0x840\nops_init+0xa5/0x410\nsetup_net+0x5aa/0xbd0\ncopy_net_ns+0x2e6/0x6b0\ncreate_new_namespaces+0x382/0xa50\nunshare_nsproxy_namespaces+0xa6/0x1c0\nksys_unshare+0x3a4/0x7e0\n__x64_sys_unshare+0x2d/0x40\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7d9b1b578d67a14ae7a7a526ee115b233fa264c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "22a68c3b9362eaac7b035eba09e95e6b3f7a912c"
            },
            {
              "version": "7d9b1b578d67a14ae7a7a526ee115b233fa264c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ca695207ed2271ecbf8ee6c641970f621c157cc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "6.0.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}