CVE-2026-98157

MEDIUM

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.

CVSS v3 vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected routers (0)

No routers currently mapped to this CVE in our database.

External references

• NIST NVD
• MITRE CVE