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vuln-cve/data/2026/53xxx/CVE-2026-53134.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-53134",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-06-09T07:44:35.386Z",
"datePublished": "2026-06-25T08:38:23.348Z",
"dateUpdated": "2026-11-10T12:48:09.653Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-06-25T08:38:23.348Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_fib: fix stale stack leak via the OIFNAME register\n\nFor NFT_FIB_RESULT_OIFNAME the destination register is declared with\nlen = IFNAMSIZ (four 32-bit registers), but on the lookup-fail,\nRTN_LOCAL and oif-mismatch paths nft_fib{4,6}_eval() only writes one\nregister via \"*dest = 0\". The remaining three registers are left as\nwhatever was on the stack in nft_do_chain()'s struct nft_regs, and a\ndownstream expression that loads the register span can leak that\nuninitialised kernel stack to userspace.\n\nThe NFTA_FIB_F_PRESENT existence check has the same shape: it is only\nmeaningful for NFT_FIB_RESULT_OIF, yet it was accepted for any result type\nwhile the eval stores a single byte via nft_reg_store8(), leaving the rest\nof the declared span stale.\n\nFix both:\n\n - replace the bare \"*dest = 0\" in the eval with nft_fib_store_result(),\n which strscpy_pad()s the whole IFNAMSIZ for OIFNAME (and is already\n used on the other early-return path), and\n\n - restrict NFTA_FIB_F_PRESENT to NFT_FIB_RESULT_OIF and declare its\n destination as a single u8, so the marked span matches the one byte\n the eval writes."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/ipv4/netfilter/nft_fib_ipv4.c",
"net/ipv6/netfilter/nft_fib_ipv6.c",
"net/netfilter/nft_fib.c"
],
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"lessThan": "6744e49fe51bfba26522acc2d0e9703cb41d8e50",
"status": "affected",
"versionType": "git"
},
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"lessThan": "eca18feed38b3377a2ec5d1f22af1170c55d0171",
"status": "affected",
"versionType": "git"
},
{
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"lessThan": "d19ddef8c327a4773ff81f8e51027d1e0b4cf069",
"status": "affected",
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"lessThan": "3544210609f6d1db282bbdeca639104ef624c393",
"status": "affected",
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"lessThan": "ab185e0c4fb82dfba6fb86f8271e06f931d9c64c",
"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/ipv4/netfilter/nft_fib_ipv4.c",
"net/ipv6/netfilter/nft_fib_ipv6.c",
"net/netfilter/nft_fib.c"
],
"versions": [
{
"version": "4.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.10",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.259",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.210",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.176",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.143",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
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},
{
"version": "6.12.94",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.36",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.13",
"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": "4.10",
"versionEndExcluding": "5.10.259"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.10",
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},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.10",
"versionEndExcluding": "6.1.176"
},
{
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},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.10",
"versionEndExcluding": "6.18.36"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.10",
"versionEndExcluding": "7.0.13"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.10",
"versionEndExcluding": "7.1"
}
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],
"references": [
{
"url": "https://git.kernel.org/stable/c/6744e49fe51bfba26522acc2d0e9703cb41d8e50"
},
{
"url": "https://git.kernel.org/stable/c/eca18feed38b3377a2ec5d1f22af1170c55d0171"
},
{
"url": "https://git.kernel.org/stable/c/d19ddef8c327a4773ff81f8e51027d1e0b4cf069"
},
{
"url": "https://git.kernel.org/stable/c/eb8a8124484dbc3c2b543e207da39bbccb703d31"
},
{
"url": "https://git.kernel.org/stable/c/8c84885e9790823828bb8084736ea15769b1ac16"
},
{
"url": "https://git.kernel.org/stable/c/84d8f58cf28a0415413f43ba7148f7bacd4c1b6e"
},
{
"url": "https://git.kernel.org/stable/c/3544210609f6d1db282bbdeca639104ef624c393"
},
{
"url": "https://git.kernel.org/stable/c/ab185e0c4fb82dfba6fb86f8271e06f931d9c64c"
}
],
"title": "netfilter: nft_fib: fix stale stack leak via the OIFNAME register",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:48:09.653Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
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}
],
"defaultStatus": "unknown"
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{
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},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-53134",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
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}
],
"version": "2.0.3",
"timestamp": "2026-11-06T16:20:19.628355Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
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"shortName": "CISA-ADP",
"dateUpdated": "2026-11-06T16:24:03.490Z"
}
}
]
}
}
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