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vuln-cve/data/2025/40xxx/CVE-2025-40127.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-40127",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T07:20:57.169Z",
"datePublished": "2025-11-12T10:23:20.775Z",
"dateUpdated": "2026-05-11T21:43:17.660Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:43:17.660Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: ks-sa - fix division by zero in ks_sa_rng_init\n\nFix division by zero in ks_sa_rng_init caused by missing clock\npointer initialization. The clk_get_rate() call is performed on\nan uninitialized clk pointer, resulting in division by zero when\ncalculating delay values.\n\nAdd clock initialization code before using the clock.\n\n\n drivers/char/hw_random/ks-sa-rng.c | 7 +++++++\n 1 file changed, 7 insertions(+)"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/char/hw_random/ks-sa-rng.c"
],
"versions": [
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "692a04a1e0cde1d80a33df0078c755cf02cd7268",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "d76b099011fa056950f63d05ebb6160991242f6a",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "eec7e0e19c1fa75dc65e25aa6a21ef24a03849af",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "f4238064379a91e71a9c258996acac43c50c2094",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2",
"status": "affected",
"versionType": "git"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "612b1dfeb414dfa780a6316014ceddf9a74ff5c0",
"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/char/hw_random/ks-sa-rng.c"
],
"versions": [
{
"version": "5.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.5",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.246",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.195",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.156",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.112",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.53",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17.3",
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18",
"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": "5.5",
"versionEndExcluding": "5.10.246"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "5.15.195"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.1.156"
},
{
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.12.53"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.17.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.18"
}
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}
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}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/692a04a1e0cde1d80a33df0078c755cf02cd7268"
},
{
"url": "https://git.kernel.org/stable/c/d76b099011fa056950f63d05ebb6160991242f6a"
},
{
"url": "https://git.kernel.org/stable/c/eec7e0e19c1fa75dc65e25aa6a21ef24a03849af"
},
{
"url": "https://git.kernel.org/stable/c/f4238064379a91e71a9c258996acac43c50c2094"
},
{
"url": "https://git.kernel.org/stable/c/2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2"
},
{
"url": "https://git.kernel.org/stable/c/55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2"
},
{
"url": "https://git.kernel.org/stable/c/612b1dfeb414dfa780a6316014ceddf9a74ff5c0"
}
],
"title": "hwrng: ks-sa - fix division by zero in ks_sa_rng_init",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}