CVE-2025-40127
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: ks-sa - fix division by zero in ks_sa_rng_init Fix division by zero in ks_sa_rng_init caused by missing clock pointer initialization. The clk_get_rate() call is performed on an uninitialized clk pointer, resulting in division by zero when calculating delay values. Add clock initialization code before using the clock. drivers/char/hw_random/ks-sa-rng.c | 7 +++++++ 1 file changed, 7 insertions(+)
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-11-12 11:15:42.290000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-40127",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-11-12T11:15:42.290",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Deferred",
"cveTags": [],
"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(+)"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nhwrng: ks-sa - soluciona la división por cero en ks_sa_rng_init\n\nCorrige la división por cero en ks_sa_rng_init causada por la falta de inicialización del puntero del reloj. La llamada a clk_get_rate() se realiza sobre un puntero clk no inicializado, resultando en una división por cero al calcular los valores de retardo.\n\nAñade código de inicialización del reloj antes de usar el reloj.\n\n drivers/char/hw_random/ks-sa-rng.c | 7 +++++++\n 1 archivo modificado, 7 inserciones(+)"
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/char/hw_random/ks-sa-rng.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "692a04a1e0cde1d80a33df0078c755cf02cd7268",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "d76b099011fa056950f63d05ebb6160991242f6a",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "eec7e0e19c1fa75dc65e25aa6a21ef24a03849af",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "f4238064379a91e71a9c258996acac43c50c2094",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2",
"versionType": "git",
"status": "affected"
},
{
"version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
"lessThan": "612b1dfeb414dfa780a6316014ceddf9a74ff5c0",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/char/hw_random/ks-sa-rng.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.5",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.246",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.195",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.156",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.112",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.53",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.17.3",
"lessThanOrEqual": "6.17.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/612b1dfeb414dfa780a6316014ceddf9a74ff5c0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/692a04a1e0cde1d80a33df0078c755cf02cd7268",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d76b099011fa056950f63d05ebb6160991242f6a",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/eec7e0e19c1fa75dc65e25aa6a21ef24a03849af",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f4238064379a91e71a9c258996acac43c50c2094",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}