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CVE-2025-40127

UnknownEPSS 0.18%

Last modified

CVE-2025-40127 is a vulnerability of currently unknown severity. 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(+). EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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(+)

Metrics

EPSS Probability
0.18%

7.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < 692a04a1e0cde1d80a33df0078c755cf02cd7268; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < d76b099011fa056950f63d05ebb6160991242f6a; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < eec7e0e19c1fa75dc65e25aa6a21ef24a03849af; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < f4238064379a91e71a9c258996acac43c50c2094; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < 2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < 55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2; >= 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b, < 612b1dfeb414dfa780a6316014ceddf9a74ff5c0
LinuxLinux5.5

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-40127?
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(+)
How severe is CVE-2025-40127?
Severity scoring for CVE-2025-40127 is pending analysis. The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2025-40127?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST