CVE-2025-40127 (GCVE-0-2025-40127)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2025-11-12 10:23
Severity ?
Summary
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(+)
References
Impacted products
Vendor Product Version
Linux Linux Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Version: 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b
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{
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          "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(+)"
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      "providerMetadata": {
        "dateUpdated": "2025-11-12T10:23:20.775Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/612b1dfeb414dfa780a6316014ceddf9a74ff5c0"
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      "title": "hwrng: ks-sa - fix division by zero in ks_sa_rng_init",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40127",
    "datePublished": "2025-11-12T10:23:20.775Z",
    "dateReserved": "2025-04-16T07:20:57.169Z",
    "dateUpdated": "2025-11-12T10:23:20.775Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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  }
}


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