{"id":"CVE-2026-63987","revision":"aa00a234e65344d88839686b0699cbc7","records":[{"revision":"aa00a234e65344d88839686b0699cbc7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63987","aliases":[],"title":"ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES\n\nethnl_update_profile() walks the ETHTOOL_A_PROFILE_IRQ_MODERATION\nnest list with an index 'i' and writes new_profile[i++] without\nbounding i. The destination is kmemdup()'d at NET_DIM_PARAMS_NUM_PROFILES\nentries (5), but the Netlink nest count is entirely user-controlled.\nNetlink policies do not have support for constraining the number\nof nested entries (or number of multi-attr entries).","state":0,"publishedAt":"2026-07-19T14:56:08.94+00:00","modifiedAt":"2026-10-19T20:18:01.044+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ethtool/coalesce.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f750dfe825b904164688adeb147950e0e0c4d262\",\n                            \"lessThan\": \"d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f750dfe825b904164688adeb147950e0e0c4d262\",\n                            \"lessThan\": \"0c02c190bcd9822477038ff2cee10ea584ac1b1d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f750dfe825b904164688adeb147950e0e0c4d262\",\n                            \"lessThan\": \"6205f7166d2dd14a017a5802c81e5bd1421a8635\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f750dfe825b904164688adeb147950e0e0c4d262\",\n                            \"lessThan\": \"7281b096b072f6c6e30420e3467d738f2e4c4b57\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ethtool/coalesce.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.93\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.35\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.12\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc","https://git.kernel.org/stable/c/0c02c190bcd9822477038ff2cee10ea584ac1b1d","https://git.kernel.org/stable/c/6205f7166d2dd14a017a5802c81e5bd1421a8635","https://git.kernel.org/stable/c/7281b096b072f6c6e30420e3467d738f2e4c4b57"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63987","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63987","identifiers":["CVE-2026-63987"]},"retained":false,"historicalAffected":[]}],"coverage":[]}