{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43411",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:56.008Z",
        "datePublished": "2026-05-08T14:21:49.543Z",
        "dateUpdated": "2026-05-11T22:24:04.295Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:24:04.295Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix divide-by-zero in tipc_sk_filter_connect()\n\nA user can set conn_timeout to any value via\nsetsockopt(TIPC_CONN_TIMEOUT), including values less than 4.  When a\nSYN is rejected with TIPC_ERR_OVERLOAD and the retry path in\ntipc_sk_filter_connect() executes:\n\n    delay %= (tsk->conn_timeout / 4);\n\nIf conn_timeout is in the range [0, 3], the integer division yields 0,\nand the modulo operation triggers a divide-by-zero exception, causing a\nkernel oops/panic.\n\nFix this by clamping conn_timeout to a minimum of 4 at the point of use\nin tipc_sk_filter_connect().\n\nOops: divide error: 0000 [#1] SMP KASAN NOPTI\nCPU: 0 UID: 0 PID: 119 Comm: poc-F144 Not tainted 7.0.0-rc2+\nRIP: 0010:tipc_sk_filter_rcv (net/tipc/socket.c:2236 net/tipc/socket.c:2362)\nCall Trace:\n tipc_sk_backlog_rcv (include/linux/instrumented.h:82 include/linux/atomic/atomic-instrumented.h:32 include/net/sock.h:2357 net/tipc/socket.c:2406)\n __release_sock (include/net/sock.h:1185 net/core/sock.c:3213)\n release_sock (net/core/sock.c:3797)\n tipc_connect (net/tipc/socket.c:2570)\n __sys_connect (include/linux/file.h:62 include/linux/file.h:83 net/socket.c:2098)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/tipc/socket.c"
                    ],
                    "versions": [
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "600feb0a66a98c6b7f6f02b5f3612e75f9b8540f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "3bc9998041076ee05d3f312a22cee6b2ca35527f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "579956f9f297eb1b6a5d24de313f3acccee1f9d5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "a360d3815aae1f00dd71b7714a846482e85cc1f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "c2ebfbe63deb7bfd4dc2532bae62a7ed67713272",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "2754e7b3d64748643df867d1ea6fec522914b635",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "338c5edeb6ae3f12a4b84dff9d71f6f7f8c202c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6787927475e52f6933e3affce365dabb2aa2fadf",
                            "lessThan": "6c5a9baa15de240e747263aba435a0951da8d8d2",
                            "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/tipc/socket.c"
                    ],
                    "versions": [
                        {
                            "version": "4.20",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.20",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.78",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.19",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.9",
                            "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": "4.20",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "5.15.203"
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                                {
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                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "6.1.167"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "6.6.130"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "6.12.78"
                                },
                                {
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                                    "versionStartIncluding": "4.20",
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                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "6.19.9"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "7.0"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/600feb0a66a98c6b7f6f02b5f3612e75f9b8540f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3bc9998041076ee05d3f312a22cee6b2ca35527f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/579956f9f297eb1b6a5d24de313f3acccee1f9d5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a360d3815aae1f00dd71b7714a846482e85cc1f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c2ebfbe63deb7bfd4dc2532bae62a7ed67713272"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2754e7b3d64748643df867d1ea6fec522914b635"
                },
                {
                    "url": "https://git.kernel.org/stable/c/338c5edeb6ae3f12a4b84dff9d71f6f7f8c202c3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6c5a9baa15de240e747263aba435a0951da8d8d2"
                }
            ],
            "title": "tipc: fix divide-by-zero in tipc_sk_filter_connect()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}