CVE-2026-68356

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> watchdog: airoha: Prevent division by zero when clock frequency is zero<br /> <br /> clk_get_rate() can return 0 when the clock provider is not properly<br /> configured or the clock is unmanaged. The driver uses wdt_freq as a<br /> divisor directly in airoha_wdt_probe() to compute max_timeout and in<br /> airoha_wdt_get_timeleft() to compute the remaining time, which results<br /> in a division by zero.<br /> <br /> Add a check for wdt_freq == 0 in probe and return -EINVAL with<br /> dev_err_probe() to prevent the division by zero and provide a<br /> diagnostic message.