Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3cf67f3769b8227ca75ca7102180a2e270ee01aa before 8681e5addf7171602616e256a09057697dcc75ca; affected 3cf67f3769b8227ca75ca7102180a2e270ee01aa before 57c3f5bd5be008cd5b4ff6a45b7cb90f5ca45a37; affected 3cf67f3769b8227ca75ca7102180a2e270ee01aa before bcfcd7619f277842430d197556463b401b839ee9 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.