{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52985",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.376Z",
        "datePublished": "2026-06-24T16:28:59.871Z",
        "dateUpdated": "2026-06-24T16:28:59.871Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-24T16:28:59.871Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: zero initialize struct iphdr in dummy sk_buff\n\nSyzbot reports a KMSAN uninit-value originating from\nnsim_dev_trap_skb_build, with the allocation also\nbeing performed in the same function.\n\nFix this by calling skb_put_zero instead of skb_put to\nguarantee zero initialization of the whole IP header."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/netdevsim/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "175556c049eaec14efde8c6475e763b7579b9de7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "6e2cfd0904976e701d7a76b86b694e72af230ab0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "1b7b6ae0e93b8d512e208b1378d74af052e4f4e7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "818f7673ed7f4a29d4b9cee8184c47d6e57162b4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "978ca6ff789f1f19c03288ac20cc1f4774e88490",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "750d0091bebf44975421268d37484ef87060d263",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "bc6002865e8c4fcf9e94975f7cf023448d8764e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
                            "lessThan": "35eaa6d8d6c2ee65e96f507add856e0eacf24591",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/netdevsim/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "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": "6.6.141",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.91",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "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": "5.4",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.15.209"
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                                },
                                {
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                                    "versionStartIncluding": "5.4",
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                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.1"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490"
                },
                {
                    "url": "https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591"
                }
            ],
            "title": "netdevsim: zero initialize struct iphdr in dummy sk_buff",
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}