CVE-2025-40127
BaseFortify
Publication date: 2025-11-12
Last updated on: 2025-11-12
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a division by zero error in the Linux kernel's hardware random number generator driver (ks-sa). It occurs because a clock pointer was not initialized before calling clk_get_rate(), which leads to a division by zero when calculating delay values. The fix involved adding clock initialization code before using the clock.
How can this vulnerability impact me? :
The vulnerability can cause a division by zero error in the kernel, which may lead to system instability or crashes when the affected hardware random number generator driver is used.
What immediate steps should I take to mitigate this vulnerability?
Update the Linux kernel to a version that includes the fix for the division by zero in ks_sa_rng_init. The fix involves proper initialization of the clock pointer before its use, preventing the division by zero error. Applying the patch or upgrading to the fixed kernel version will mitigate the vulnerability.