CVEvulnerability

CVE-2026-98157

5.5 MEDIUM Published 2026-09-25 Modified 2026-10-20 Official page ↗
Status
Analyzed
Published
2026-09-25
Last modified
2026-10-20
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• linux linux kernel (>= 2.6.23 < 5.10.271) • linux linux kernel (>= 5.15 < 5.15.222) • linux linux kernel (>= 6.1 < 6.1.189) • linux linux kernel (>= 6.6 < 6.6.158) • linux linux kernel (>= 6.12 < 6.12.111) • linux linux kernel (>= 6.13 < 6.18.53) • linux linux kernel (>= 6.19 < 7.2.7) • linux linux kernel 7.3

References