CVE-2026-31574

{"id": "CVE-2026-31574", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31574", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T21:39:29.451177Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d6e152d905bdb1f32f9d99775e2f453350399a6a", "lessThan": "9401b593fa48218d2667df1610b0ebc518554880", "versionType": "git"}, {"status": "affected", "version": "d6e152d905bdb1f32f9d99775e2f453350399a6a", "lessThan": "4096fd0e8eaea13ebe5206700b33f49635ae18e5", "versionType": "git"}], "programFiles": ["kernel/time/clockevents.c", "kernel/time/tick-broadcast.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"status": "unaffected", "version": "0", "lessThan": "7.0", "versionType": "semver"}, {"status": "unaffected", "version": "7.0.1", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/time/clockevents.c", "kernel/time/tick-broadcast.c"], "defaultStatus": "affected"}]}], "published": "2026-04-24T15:16:32.020", "references": [{"url": "https://git.kernel.org/stable/c/4096fd0e8eaea13ebe5206700b33f49635ae18e5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9401b593fa48218d2667df1610b0ebc518554880", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclockevents: Add missing resets of the next_event_forced flag\n\nThe prevention mechanism against timer interrupt starvation missed to reset\nthe next_event_forced flag in a couple of places:\n\n - When the clock event state changes. That can cause the flag to be\n stale over a shutdown/startup sequence\n\n - When a non-forced event is armed, which then prevents rearming before\n that event. If that event is far out in the future this will cause\n missed timer interrupts.\n\n - In the suspend wakeup handler.\n\nThat led to stalls which have been reported by several people.\n\nAdd the missing resets, which fixes the problems for the reporters."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nclockevents: A\u00f1adir restablecimientos faltantes del indicador next_event_forced\n\nEl mecanismo de prevenci\u00f3n contra el agotamiento de interrupciones del temporizador omiti\u00f3 restablecer el indicador next_event_forced en un par de lugares:\n\n - Cuando el estado del evento de reloj cambia. Eso puede hacer que el indicador quede obsoleto durante una secuencia de apagado/arranque\n\n - Cuando se arma un evento no forzado, lo que luego impide el rearme antes de ese evento. Si ese evento est\u00e1 muy lejos en el futuro, esto causar\u00e1 interrupciones del temporizador perdidas.\n\n - En el gestor de activaci\u00f3n de suspensi\u00f3n.\n\nEso llev\u00f3 a bloqueos que han sido reportados por varias personas.\n\nA\u00f1adir los restablecimientos faltantes, lo que soluciona los problemas para los que los reportaron."}], "lastModified": "2026-11-11T23:10:00.263", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF897730-3F1E-47A2-8B07-22535202C487"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}