CVE-2026-98157EPSS p5.1%
CVE-2026-98157CVE-2026-98157
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.
Scoring
| EPSS | 0.17% probability of exploitation · percentile 5.1% · 2026-10-05T12:00:23Z |
| Last modified | 2026-10-03 |