CVE-2025-40127

hwrng: ks-sa - fix division by zero in ks_sa_rng_init

N/A
Published: November 12, 2025 at 10:23 AM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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(+)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.56d01d8511dceb9cd40f72eb102b7d24f0b2e997b
Vendor states this is fixed in 2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2 (fixed)
Vendor states this is fixed in 55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2 (fixed)
Vendor states this is fixed in 612b1dfeb414dfa780a6316014ceddf9a74ff5c0 (fixed)
Vendor states this is fixed in 692a04a1e0cde1d80a33df0078c755cf02cd7268 (fixed)
Vendor states this is fixed in d76b099011fa056950f63d05ebb6160991242f6a (fixed)
Vendor states this is fixed in eec7e0e19c1fa75dc65e25aa6a21ef24a03849af (fixed)
Vendor states this is fixed in f4238064379a91e71a9c258996acac43c50c2094 (fixed)
Vendor states this is fixed in 5.10.246 (unaffected)
Vendor states this is fixed in 5.15.195 (unaffected)
Vendor states this is fixed in 5.5 (unaffected)
Vendor states this is fixed in 6.1.156 (unaffected)
Vendor states this is fixed in 6.12.53 (unaffected)
Vendor states this is fixed in 6.17.3 (unaffected)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.6.112 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

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