{
  "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-2023-52977",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52977",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-03-27T16:43:17.234Z",
    "updatedAt": "2026-05-23T15:27:39.583Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "net: openvswitch: fix flow memory leak in ovs_flow_cmd_new",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix flow memory leak in ovs_flow_cmd_new\n\nSyzkaller reports a memory leak of new_flow in ovs_flow_cmd_new() as it is\nnot freed when an allocation of a key fails.\n\nBUG: memory leak\nunreferenced object 0xffff888116668000 (size 632):\n  comm \"syz-executor231\", pid 1090, jiffies 4294844701 (age 18.871s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<00000000defa3494>] kmem_cache_zalloc include/linux/slab.h:654 [inline]\n    [<00000000defa3494>] ovs_flow_alloc+0x19/0x180 net/openvswitch/flow_table.c:77\n    [<00000000c67d8873>] ovs_flow_cmd_new+0x1de/0xd40 net/openvswitch/datapath.c:957\n    [<0000000010a539a8>] genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739\n    [<00000000dff3302d>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n    [<00000000dff3302d>] genl_rcv_msg+0x328/0x590 net/netlink/genetlink.c:800\n    [<000000000286dd87>] netlink_rcv_skb+0x153/0x430 net/netlink/af_netlink.c:2515\n    [<0000000061fed410>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\n    [<000000009dc0f111>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]\n    [<000000009dc0f111>] netlink_unicast+0x545/0x7f0 net/netlink/af_netlink.c:1339\n    [<000000004a5ee816>] netlink_sendmsg+0x8e7/0xde0 net/netlink/af_netlink.c:1934\n    [<00000000482b476f>] sock_sendmsg_nosec net/socket.c:651 [inline]\n    [<00000000482b476f>] sock_sendmsg+0x152/0x190 net/socket.c:671\n    [<00000000698574ba>] ____sys_sendmsg+0x70a/0x870 net/socket.c:2356\n    [<00000000d28d9e11>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2410\n    [<0000000083ba9120>] __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439\n    [<00000000c00628f8>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46\n    [<000000004abfdcf4>] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nTo fix this the patch rearranges the goto labels to reflect the order of\nobject allocations and adds appropriate goto statements on the error\npaths.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "655e873bf528f0f46ce6b069f9a2daee9621197c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ac653cf886cdfc082708c82dc6ac6115cebd2ee"
            },
            {
              "version": "ee27d70556a47c3a07e65a60f47e3ea12a255af8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af4e720bc00a2653f7b9df21755b9978b3d7f386"
            },
            {
              "version": "8b74211bf60b3e0c0ed4fe3d16c92ffdcaaf34eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ed6c5e8caf55778500202775167e8ccdb1a030cb"
            },
            {
              "version": "6736b61ecf230dd656464de0f514bdeadb384f20",
              "status": "affected",
              "versionType": "git",
              "lessThan": "70154489f531587996f3e9d7cceeee65cff0001d"
            },
            {
              "version": "0133615a06007684df648feb9d327714e399afd4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f423c2efd51d7eb1d143c2be7eea233241d9bbbf"
            },
            {
              "version": "32d5fa5bdccec2361fc6c4ed05a7367155b3a1e9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "70d40674a549d498bd63d5432acf46205da1534b"
            },
            {
              "version": "68bb10101e6b0a6bb44e9c908ef795fc4af99eae",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c598aed445eb45b0ee7ba405f7ece99ee349c30"
            },
            {
              "version": "4f592e712ea2132f511d545954867d7880df5be2",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "a991a411c3e21ef22507400dbb179ae02029d42c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.9.337",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "6.0.16",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.14.303",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.306"
            },
            {
              "version": "4.19.270",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.273"
            },
            {
              "version": "5.4.229",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.232"
            },
            {
              "version": "5.10.163",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.168"
            },
            {
              "version": "5.15.86",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.93"
            },
            {
              "version": "6.1.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.11"
            }
          ]
        }
      ]
    }
  }
}