{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23399",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:46.012Z",
        "datePublished": "2026-03-28T07:16:09.888Z",
        "dateUpdated": "2026-06-01T16:11:09.166Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:11:09.166Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnf_tables: nft_dynset: fix possible stateful expression memleak in error path\n\nIf cloning the second stateful expression in the element via GFP_ATOMIC\nfails, then the first stateful expression remains in place without being\nreleased.\n\n   unreferenced object (percpu) 0x607b97e9cab8 (size 16):\n     comm \"softirq\", pid 0, jiffies 4294931867\n     hex dump (first 16 bytes on cpu 3):\n       00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n     backtrace (crc 0):\n       pcpu_alloc_noprof+0x453/0xd80\n       nft_counter_clone+0x9c/0x190 [nf_tables]\n       nft_expr_clone+0x8f/0x1b0 [nf_tables]\n       nft_dynset_new+0x2cb/0x5f0 [nf_tables]\n       nft_rhash_update+0x236/0x11c0 [nf_tables]\n       nft_dynset_eval+0x11f/0x670 [nf_tables]\n       nft_do_chain+0x253/0x1700 [nf_tables]\n       nft_do_chain_ipv4+0x18d/0x270 [nf_tables]\n       nf_hook_slow+0xaa/0x1e0\n       ip_local_deliver+0x209/0x330"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/netfilter/nf_tables.h",
                        "net/netfilter/nf_tables_api.c",
                        "net/netfilter/nft_dynset.c"
                    ],
                    "versions": [
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "eb7bf413e59945df03d4567b73ce464eebe2f4ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "4357dbb1d9c35ca0b4443d71c98a48e6666f7689",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "e6661add2d9c6913e1dad97336595e23a2bed195",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "d1354873cbe3b344899c4311ac05897fd83e3f21",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "31641c682db73353e4647e40735c7f2a75ff58ef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "c88a9fd26cee365bec932196f76175772a941cca",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "563125a73ac30d7036ae69ca35c40500562c1de4",
                            "lessThan": "0548a13b5a145b16e4da0628b5936baf35f51b43",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/netfilter/nf_tables.h",
                        "net/netfilter/nf_tables_api.c",
                        "net/netfilter/nft_dynset.c"
                    ],
                    "versions": [
                        {
                            "version": "5.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.136",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.78",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.20",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.10",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.11",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.6.136"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.12.78"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.18.20"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.19.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/eb7bf413e59945df03d4567b73ce464eebe2f4ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4357dbb1d9c35ca0b4443d71c98a48e6666f7689"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e6661add2d9c6913e1dad97336595e23a2bed195"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1354873cbe3b344899c4311ac05897fd83e3f21"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31641c682db73353e4647e40735c7f2a75ff58ef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c88a9fd26cee365bec932196f76175772a941cca"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0548a13b5a145b16e4da0628b5936baf35f51b43"
                }
            ],
            "title": "nf_tables: nft_dynset: fix possible stateful expression memleak in error path",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}