Description
In the Linux kernel, the following vulnerability has been resolved: watchdog: airoha: Prevent division by zero when clock frequency is zero clk_get_rate() can return 0 when the clock provider is not properly configured or the clock is unmanaged. The driver uses wdt_freq as a divisor directly in airoha_wdt_probe() to compute max_timeout and in airoha_wdt_get_timeleft() to compute the remaining time, which results in a division by zero. Add a check for wdt_freq == 0 in probe and return -EINVAL with dev_err_probe() to prevent the division by zero and provide a diagnostic message.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3cf67f3769b8227ca75ca7102180a2e270ee01aa to < 8681e5addf7171602616e256a09057697dcc75caaffected3cf67f3769b8227ca75ca7102180a2e270ee01aa to < 57c3f5bd5be008cd5b4ff6a45b7cb90f5ca45a37affected3cf67f3769b8227ca75ca7102180a2e270ee01aa to < bcfcd7619f277842430d197556463b401b839ee9affected
Linux Linux
Default version status: affected
6.13affected0 to < 6.13unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected