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CVE-2026-98157

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…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.23 before 5.10.271
from 5.15 before 5.15.222
from 6.1 before 6.1.189
from 6.6 before 6.6.158
from 6.12 before 6.12.111
from 6.13 before 6.18.53

References