EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation
Summary
| CVE | CVE-2026-98157 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-25 11:17:47 UTC |
| Updated | 2026-10-20 17:30:40 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.001570000 probability, percentile 0.041280000 (date 2026-09-27)
Problem Types: NVD-CWE-noinfo
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d a60794ee3f453516ab3ed212ba0295ecf890bc8c git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d f856511058c8cb470d6c6c7ce908870adcdc7dc6 git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d 656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d 541fc6f733b32463cf23277637bb07e2aaa00b53 git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d ea01c061d839b520f385f112908de1c6e3391327 git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d 528052af901d6e6bbfa0e52362a70a58a5dd1e43 git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d 0e022ee4f8e0dc843ba4c80bb75408a7704279af git | Not specified |
| CNA | Linux | Linux | affected e27e3dac651771fe3250f6305dee277bce29fc5d 66cc9dec919dd63d8e4b3d386f7aed3ae684e645 git | Not specified |
| CNA | Linux | Linux | affected 2.6.23 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.23 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.271 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.222 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.189 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.158 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.111 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.53 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.7 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/0e022ee4f8e0dc843ba4c80bb75408a7704279af | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/528052af901d6e6bbfa0e52362a70a58a5dd1e43 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/f856511058c8cb470d6c6c7ce908870adcdc7dc6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/ea01c061d839b520f385f112908de1c6e3391327 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/66cc9dec919dd63d8e4b3d386f7aed3ae684e645 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/541fc6f733b32463cf23277637bb07e2aaa00b53 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/a60794ee3f453516ab3ed212ba0295ecf890bc8c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.