CVE-2025-40127

Linux Kernel - Division by Zero via Uninitialized Clock Pointer in ks_sa_rng_init

Title source: llm
STIX 2.1

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(+)

Scores

EPSS 0.0020
EPSS Percentile 10.3%

Details

Status published
Products (22)
linux/Kernel 5.11.0 - 5.15.195linux
linux/Kernel 5.16.0 - 6.1.156linux
linux/Kernel 5.5.0 - 5.10.246linux
linux/Kernel 6.13.0 - 6.17.3linux
linux/Kernel 6.2.0 - 6.6.112linux
linux/Kernel 6.7.0 - 6.12.53linux
Linux/Linux < 5.5
Linux/Linux 5.10.246 - 5.10.*
Linux/Linux 5.15.195 - 5.15.*
Linux/Linux 5.5
... and 12 more
Published Nov 12, 2025
Tracked Since Feb 18, 2026