GHSA-CQ6F-QJ9V-H84P
Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33In 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": [],
"aliases": [
"CVE-2026-68356"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-10T13:20:28Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: airoha: Prevent division by zero when clock frequency is zero\n\nclk_get_rate() can return 0 when the clock provider is not properly\nconfigured or the clock is unmanaged. The driver uses wdt_freq as a\ndivisor directly in airoha_wdt_probe() to compute max_timeout and in\nairoha_wdt_get_timeleft() to compute the remaining time, which results\nin a division by zero.\n\nAdd a check for wdt_freq == 0 in probe and return -EINVAL with\ndev_err_probe() to prevent the division by zero and provide a\ndiagnostic message.",
"id": "GHSA-cq6f-qj9v-h84p",
"modified": "2026-08-10T15:33:48Z",
"published": "2026-08-10T15:33:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68356"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/57c3f5bd5be008cd5b4ff6a45b7cb90f5ca45a37"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8681e5addf7171602616e256a09057697dcc75ca"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bcfcd7619f277842430d197556463b401b839ee9"
}
],
"schema_version": "1.4.0",
"severity": []
}
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