{"schema_version":"1.9.0","id":"CVE-2026-63987","published":"2026-07-19T14:56:08.940Z","modified":"2026-08-12T03:51:10.701759228Z","summary":"ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES","details":"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).","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f750dfe825b904164688adeb147950e0e0c4d262"},{"fixed":"d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc"},{"fixed":"0c02c190bcd9822477038ff2cee10ea584ac1b1d"},{"fixed":"6205f7166d2dd14a017a5802c81e5bd1421a8635"},{"fixed":"7281b096b072f6c6e30420e3467d738f2e4c4b57"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63987.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.0"},{"fixed":"6.12.93"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63987.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0c02c190bcd9822477038ff2cee10ea584ac1b1d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6205f7166d2dd14a017a5802c81e5bd1421a8635"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7281b096b072f6c6e30420e3467d738f2e4c4b57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63987.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63987"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63987.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}