{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52988",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.376Z",
        "datePublished": "2026-06-24T16:29:02.580Z",
        "dateUpdated": "2026-08-05T12:32:24.614Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:32:24.614Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: join hook list via splice_list_rcu() in commit phase\n\nPublish new hooks in the list into the basechain/flowtable using\nsplice_list_rcu() to ensure netlink dump list traversal via rcu is safe\nwhile concurrent ruleset update is going on."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - Reachability is through nfnetlink/nftables netlink operations (`NFT_MSG_NEWCHAIN`/`NEWFLOWTABLE` and concurrent `GETCHAIN`/`GETFLOWTABLE` dumps), which require local ability to send netlink messages.\nAC:L - The bug is a race between an attacker-controlled ruleset update and an attacker-controlled concurrent RCU dump; both sides can be generated repeatedly from local processes.\nPR:L - nfnetlink checks `CAP_NET_ADMIN` in the target network namespace, and nftables/netfilter administration is reachable from unprivileged users via user+network namespaces on affected configurations.\nUI:N - No victim interaction is required; the attacker triggers both the update and dump operations directly.\nS:U - The impact remains within the kernel/local host security authority and does not cross a VM, IOMMU, or separate security-scope boundary.\nC:H - Unsafe non-RCU list publication can make an RCU netlink dump interpret a transaction list head or freed transaction memory as `struct nft_hook`, leading to out-of-bounds/use-after-free reads returned through netlink hook device-name serialization.\nI:N - The reachable affected dump path reads hook-list entries and serializes names; I did not find a defensible attacker-controlled write or control-flow primitive from this bug.\nA:H - The malformed RCU traversal can dereference invalid/freed memory or loop over an inconsistent list, making kernel oops, panic, or soft lockup a plausible outcome."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nf_tables_api.c"
                    ],
                    "versions": [
                        {
                            "version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
                            "lessThan": "1346be9379639c30877083b12747d4eacb83c24f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
                            "lessThan": "a6134e62dba2ea4f760b29d5226907f447c92400",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nf_tables_api.c"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1346be9379639c30877083b12747d4eacb83c24f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6134e62dba2ea4f760b29d5226907f447c92400"
                }
            ],
            "title": "netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}