{
  "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-2024-56663",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-56663",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-12-27T15:06:25.403Z",
    "updatedAt": "2026-08-05T11:45:57.378Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "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": "wifi: nl80211: fix NL80211_ATTR_MLO_LINK_ID off-by-one",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix NL80211_ATTR_MLO_LINK_ID off-by-one\n\nSince the netlink attribute range validation provides inclusive\nchecking, the *max* of attribute NL80211_ATTR_MLO_LINK_ID should be\nIEEE80211_MLD_MAX_NUM_LINKS - 1 otherwise causing an off-by-one.\n\nOne crash stack for demonstration:\n==================================================================\nBUG: KASAN: wild-memory-access in ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939\nRead of size 6 at addr 001102080000000c by task fuzzer.386/9508\n\nCPU: 1 PID: 9508 Comm: syz.1.386 Not tainted 6.1.70 #2\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106\n print_report+0xe0/0x750 mm/kasan/report.c:398\n kasan_report+0x139/0x170 mm/kasan/report.c:495\n kasan_check_range+0x287/0x290 mm/kasan/generic.c:189\n memcpy+0x25/0x60 mm/kasan/shadow.c:65\n ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939\n rdev_tx_control_port net/wireless/rdev-ops.h:761 [inline]\n nl80211_tx_control_port+0x7b3/0xc40 net/wireless/nl80211.c:15453\n genl_family_rcv_msg_doit+0x22e/0x320 net/netlink/genetlink.c:756\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x539/0x740 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]\n netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352\n netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874\n sock_sendmsg_nosec net/socket.c:716 [inline]\n __sock_sendmsg net/socket.c:728 [inline]\n ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499\n ___sys_sendmsg+0x21c/0x290 net/socket.c:2553\n __sys_sendmsg net/socket.c:2582 [inline]\n __do_sys_sendmsg net/socket.c:2591 [inline]\n __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nUpdate the policy to ensure correct validation.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29e640ae641b9f5ffc666049426d2b16c98d9963"
            },
            {
              "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f3412522f78826fef1dfae40ef378a863df2591c"
            },
            {
              "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f850d1d9f1106f528dfc5807565f2d1fa9a397d3"
            },
            {
              "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2e3dbf938656986cce73ac4083500d0bcfbffe24"
            },
            {
              "version": "7a53ad13c09150076b7ddde96c2dfc5622c90b45",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.19.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.0"
            },
            {
              "version": "6.1.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.67",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}