{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43043",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.979Z",
        "datePublished": "2026-05-01T14:15:39.576Z",
        "dateUpdated": "2026-05-11T22:16:36.820Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:16:36.820Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: af-alg - fix NULL pointer dereference in scatterwalk\n\nThe AF_ALG interface fails to unmark the end of a Scatter/Gather List (SGL)\nwhen chaining a new af_alg_tsgl structure. If a sendmsg() fills an SGL\nexactly to MAX_SGL_ENTS, the last entry is marked as the end. A subsequent\nsendmsg() allocates a new SGL and chains it, but fails to clear the end\nmarker on the previous SGL's last data entry.\n\nThis causes the crypto scatterwalk to hit a premature end, returning NULL\non sg_next() and leading to a kernel panic during dereference.\n\nFix this by explicitly unmarking the end of the previous SGL when\nperforming sg_chain() in af_alg_alloc_tsgl()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "crypto/af_alg.c"
                    ],
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                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "f48d3dd99199180cf37d6253550c55e86372309a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "f9acceae7b004956851fd4268edf9f518a9bce04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "7195350fb78538c25cd790d703f8f2c73ee0d395",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "7cdf2c6381b21ab5ccf8116750d5582fcd6c0f49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "44eafa39363e8d5dfda6a8c6eb6b45458ed4b948",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "00cbdec17c15d024a1c5002c7365df7624a18a75",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "4b03ab0a587ec57eb7ddb5c115d84a42896f60f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ff590903d5fc7f5a0a988c38267a3d08e6393a2",
                            "lessThan": "62397b493e14107ae82d8b80938f293d95425bcb",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "crypto/af_alg.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.38",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.38",
                            "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": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.134",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.81",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.22",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.12",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.10.253"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f48d3dd99199180cf37d6253550c55e86372309a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f9acceae7b004956851fd4268edf9f518a9bce04"
                },
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                    "url": "https://git.kernel.org/stable/c/7195350fb78538c25cd790d703f8f2c73ee0d395"
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                    "url": "https://git.kernel.org/stable/c/7cdf2c6381b21ab5ccf8116750d5582fcd6c0f49"
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                    "url": "https://git.kernel.org/stable/c/44eafa39363e8d5dfda6a8c6eb6b45458ed4b948"
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                    "url": "https://git.kernel.org/stable/c/00cbdec17c15d024a1c5002c7365df7624a18a75"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4b03ab0a587ec57eb7ddb5c115d84a42896f60f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/62397b493e14107ae82d8b80938f293d95425bcb"
                }
            ],
            "title": "crypto: af-alg - fix NULL pointer dereference in scatterwalk",
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}