{"id":"CVE-2026-98157","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation\n\nThe poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned\nlong, but the ta…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation\n\nThe poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned\nlong, but the ta…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-681"],"vendor":"Linux","product":"Linux","affected":["Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < a60794ee3f453516ab3ed212ba0295ecf890bc8c","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < f856511058c8cb470d6c6c7ce908870adcdc7dc6","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < 656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < 541fc6f733b32463cf23277637bb07e2aaa00b53","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < ea01c061d839b520f385f112908de1c6e3391327","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < 528052af901d6e6bbfa0e52362a70a58a5dd1e43","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < 0e022ee4f8e0dc843ba4c80bb75408a7704279af","Linux >= e27e3dac651771fe3250f6305dee277bce29fc5d < 66cc9dec919dd63d8e4b3d386f7aed3ae684e645","Linux 2.6.23"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:37.690","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98157","references":[{"url":"https://git.kernel.org/stable/c/0e022ee4f8e0dc843ba4c80bb75408a7704279af","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/528052af901d6e6bbfa0e52362a70a58a5dd1e43","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/541fc6f733b32463cf23277637bb07e2aaa00b53","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/66cc9dec919dd63d8e4b3d386f7aed3ae684e645","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a60794ee3f453516ab3ed212ba0295ecf890bc8c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ea01c061d839b520f385f112908de1c6e3391327","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f856511058c8cb470d6c6c7ce908870adcdc7dc6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98157.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98157"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541346"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98157"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98157"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98157.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00115,"epssPercentile":0.01509,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.804Z","slug":"CVE-2026-98157","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation\n\nThe poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned\nlong, but the target field (poll_msec) is unsigned int. On 64-bit systems,\na value > UINT_MAX is silently truncated when stored.\n\nFix the mismatch by using kstrtouint() instead. This rejects values larger\nthan UINT_MAX at parse time, making truncation impossible. Also add a check\nfor value < 1 to reject the 0-delay case, which would cause the poll work to\nspin without delay and consume 100% CPU.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98157.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212549,"id":"CVE-2026-98157","ts":1790668210783,"field":"cvss","old":null,"new":"5.5"},{"seq":212548,"id":"CVE-2026-98157","ts":1790668210783,"field":"severity","old":"none","new":"medium"}]}