CVE-2026-98157 (GCVE-0-2026-98157)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:36 – Updated: 2026-10-19 09:14
VLAI
Title
EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6856 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < a60794ee3f453516ab3ed212ba0295ecf890bc8c (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < f856511058c8cb470d6c6c7ce908870adcdc7dc6 (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < 656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < 541fc6f733b32463cf23277637bb07e2aaa00b53 (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < ea01c061d839b520f385f112908de1c6e3391327 (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < 528052af901d6e6bbfa0e52362a70a58a5dd1e43 (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < 0e022ee4f8e0dc843ba4c80bb75408a7704279af (git)
Affected: e27e3dac651771fe3250f6305dee277bce29fc5d , < 66cc9dec919dd63d8e4b3d386f7aed3ae684e645 (git)
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Linux Linux Affected: 2.6.23
Unaffected: 0 , < 2.6.23 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a60794ee3f453516ab3ed212ba0295ecf890bc8c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ea01c061d839b520f385f112908de1c6e3391327"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f856511058c8cb470d6c6c7ce908870adcdc7dc6"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-10-20T17:56:20+00:00",
      "cve": "CVE-2026-98157",
      "id": "CVE-2026-98157",
      "initial_release_date": "2026-09-25T00:00:00+00:00",
      "product_status:known_affected": "277",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98157.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-20T00:02:36Z",
      "cve": "CVE-2026-98157",
      "id": "CVE-2026-98157",
      "initial_release_date": "2026-09-25T23:45:49Z",
      "product_status:known_affected": "301",
      "product_status:known_not_affected": "47",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98157",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-98157.json",
      "version": "6"
    }
  }
}



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