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vuln-cve/data/2025/39xxx/CVE-2025-39727.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-39727",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T07:20:57.118Z",
"datePublished": "2025-09-07T15:16:17.986Z",
"dateUpdated": "2026-05-11T21:35:06.160Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:35:06.160Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: swap: fix potential buffer overflow in setup_clusters()\n\nIn setup_swap_map(), we only ensure badpages are in range (0, last_page]. \nAs maxpages might be < last_page, setup_clusters() will encounter a buffer\noverflow when a badpage is >= maxpages.\n\nOnly call inc_cluster_info_page() for badpage which is < maxpages to fix\nthe issue."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/swapfile.c"
],
"versions": [
{
"version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
"lessThan": "91b370800b3f2b3dda244c0ab06719c4971190a5",
"status": "affected",
"versionType": "git"
},
{
"version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
"lessThan": "9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799",
"status": "affected",
"versionType": "git"
},
{
"version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
"lessThan": "815c528b13f2bb9b3130c13bedeabf2351a68129",
"status": "affected",
"versionType": "git"
},
{
"version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
"lessThan": "152c1339dc13ad46f1b136e8693de15980750835",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/swapfile.c"
],
"versions": [
{
"version": "6.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.42",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.15.10",
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.16.1",
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17",
"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": "6.12",
"versionEndExcluding": "6.12.42"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "6.15.10"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "6.16.1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "6.17"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/91b370800b3f2b3dda244c0ab06719c4971190a5"
},
{
"url": "https://git.kernel.org/stable/c/9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799"
},
{
"url": "https://git.kernel.org/stable/c/815c528b13f2bb9b3130c13bedeabf2351a68129"
},
{
"url": "https://git.kernel.org/stable/c/152c1339dc13ad46f1b136e8693de15980750835"
}
],
"title": "mm: swap: fix potential buffer overflow in setup_clusters()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}