CVEvulnerability
CVE-2026-98157
5.5 MEDIUM
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
- https://git.kernel.org/stable/c/0e022ee4f8e0dc843ba4c80bb75408a7704279af Patch
- https://git.kernel.org/stable/c/528052af901d6e6bbfa0e52362a70a58a5dd1e43 Patch
- https://git.kernel.org/stable/c/541fc6f733b32463cf23277637bb07e2aaa00b53 Patch
- https://git.kernel.org/stable/c/656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b Patch
- https://git.kernel.org/stable/c/66cc9dec919dd63d8e4b3d386f7aed3ae684e645 Patch
- https://git.kernel.org/stable/c/a60794ee3f453516ab3ed212ba0295ecf890bc8c Patch
- https://git.kernel.org/stable/c/ea01c061d839b520f385f112908de1c6e3391327 Patch
- https://git.kernel.org/stable/c/f856511058c8cb470d6c6c7ce908870adcdc7dc6 Patch