{"metadata": {"vulnerability": "CVE-2026-99240", "count": 14, "kinds": {"milestone": 6, "sighting": 1, "kev": 0, "other": 7}}, "data": [{"timestamp": "2026-09-25T10:25:14.403Z", "date_only": false, "value": "2026-09-25T10:25:14.403Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99240", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-02T16:06:43.703Z", "date_only": false, "value": "2026-11-02T16:06:43.703Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99240", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-02T16:17:49Z", "date_only": false, "value": "2026-11-02T16:17:49Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-36PF-5FQ6-8GFR", "record": "GHSA-36PF-5FQ6-8GFR", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-11-02T16:17:49.773Z", "date_only": false, "value": "2026-11-02T16:17:49.773", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99240", "record": "FKIE_CVE-2026-99240", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-02T16:50:57.481Z", "date_only": false, "value": "2026-11-02T16:50:57.481734Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117547800965639327", "record": "CVE-2026-99240", "field": "creation_timestamp", "uuid": "3a57fc6a-7fa6-4f78-8e23-94fb62cc2d10", "content": "CVE-2026-99240 mm/damon/core: error damos_commit_quota_goal() for zero target_value In the Linux kernel, the following vulnerability has been resolved:\nmm/damon/core: error damos_commit_quota_goal() for zero target_value\nPatch series \"mm/damon: move zero damos quota target_value handling to thecore layer\".\nHaving zero DAMOS quota target value can cause division by zero.  DAMONAPI callers are checking the target value parameters to avoid that.  It iseasy to make mistakes in some of the multiple API callers.  Move that tothe core layer.\nPatch 1 adds the corner case handling into the core layer DAMON parametersvalidation logic.  Patches 2 and 3 remove no more needed DAMON API callersside handling of the corner case in DAMON_LRU_SORT and DMON_SAMPLIE_MTIER,respectively.\nThis patch (of 3):\nIf a DAMOS scheme has a damos_quota_goal of zero target_value,damos_quota_goal() could trigger division-by-zero error.  Hence each DAMONAPI callers should do the zero target_value validation.  It is easy tomake mistakes.  Actually such bugs in DAMON_LRU_SORT andDAMON_SAMPLE_MTIER were found and fixed [1].\nIt is better to handle the corner case only once in the core layer,instead of multiple places in all DAMON API callers.  One straightforwardoption is using an alternative denominator for the corner case in thedamos_quota_goal().  However, the zero target_value is meaningless.  Inthis case, the quota goal is always evaluated as achieved orover-achieved.  The quota will only keep being reduced.\nSimply avoid using zero target_value by adding a check in the core layerDAMOS quota goal parameters validation/commit path,damos_commit_quota_goal().  Update it to return an error in the case. Also update its caller to propagate the error.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99240https://git.kernel.org/stable/c/d5482be6243b816730689099c017109eb8730dd5https://git.kernel.org/stable/c/cc190c4073f570fd78a9d00dd3d13a71eced5403https://git.kernel.org/stable/c/156aeda4d74e9007b56492ed1f3b5838822632be#kernel #Linux#CVE_2026_99240#bot", "url": "https://infosec.exchange/users/cve/statuses/117547800965639327"}, {"timestamp": "2026-11-02T18:32:27Z", "date_only": false, "value": "2026-11-02T18:32:27Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-36PF-5FQ6-8GFR", "record": "GHSA-36PF-5FQ6-8GFR", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-03T00:00:00Z", "date_only": false, "value": "2026-11-03T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99240", "record": "UBUNTU-CVE-2026-99240", "field": "published", 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