CVE-2026-97970: watchdog: msc313e: Avoid division by zero
In the Linux kernel, the following vulnerability has been resolved:
watchdog: msc313e: Avoid division by zero
clkgetrate() could return 0. Avoid a division by zero panic.
Affected Software
Event History
Frequently Asked Questions
What systems are exposed to this issue?
Systems using the Linux kernel with the msc313e watchdog driver are affected when clk_get_rate() returns 0 for the relevant clock. The provided data does not identify specific kernel versions or configurations.
What is the practical impact if the condition occurs?
The watchdog driver can perform a division by zero, causing a kernel panic.
How can I determine whether a system may be affected?
Check whether the running kernel uses or includes the msc313e watchdog driver, and investigate clock initialization or runtime conditions that could cause clk_get_rate() to return 0. A division-by-zero kernel panic in this driver is an indicator of exposure.
What remediation is available?
Apply a Linux kernel update containing the upstream fix referenced by the provided stable kernel commits. The fix avoids dividing by zero when the clock rate is reported as 0.