CVE-2026-98157 - EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation

CVE-2026-98157 - EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation

https://cvefeed.io/rssfeed/latest.atom / Fri, 09/25/2026 - 13:49
CVE ID :CVE-2026-98157
Published : Sept. 25, 2026, 10:36 a.m. | 35 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved: EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation The poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned long, but the target field (poll_msec) is unsigned int. On 64-bit systems, a value > UINT_MAX is silently truncated when stored. Fix the mismatch by using kstrtouint() instead. This rejects values larger than UINT_MAX at parse time, making truncation impossible. Also add a check for value < 1 to reject the 0-delay case, which would cause the poll work to spin without delay and consume 100% CPU.
Severity: 0.0 | NA
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