{"id":"CVE-2026-98252","summary":"RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: fix refcount bug in iwpm_get_nlmsg_request()\n\niwpm_get_nlmsg_request() initializes refcount _after_ list_add_tail()\nmaking it accessible to global list where another CPU can kref_get()\non nlmsg_request causing a refcount \"addition on 0\" bug. Fix this\nby initializing kref _before_ list_add_tail() so refcount for\nnlmsg_request can be incremented/decremented normally. In addition,\nalso initialize every field before list_add_tail().","modified":"2026-10-08T02:52:55.336042836Z","published":"2026-10-06T08:45:19.393Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98252.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/117871cdb8927542abd7b65ce5995bf0265a8c05"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/33fb59da49c4c3f5c2ec9f9d4447a56857a02c02"},{"type":"WEB","url":"https://git.kernel.org/stable/c/52c13c63bb3662c108244e7447055e30bf40244e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88e429a4e9bac3d2138011c5ca06254331f2587f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a91609032d47e77bcb37bc8f6e88d89340d2709"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ce8a379598bd4058081416abea4279fd05a95374"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e15eb536be4f646ce683d2867572b2200be877f7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98252.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98252"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"30dc5e63d6a5ad24894b5512d10b228d73645a44"},{"fixed":"52c13c63bb3662c108244e7447055e30bf40244e"},{"fixed":"8a91609032d47e77bcb37bc8f6e88d89340d2709"},{"fixed":"ce8a379598bd4058081416abea4279fd05a95374"},{"fixed":"2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8"},{"fixed":"88e429a4e9bac3d2138011c5ca06254331f2587f"},{"fixed":"e15eb536be4f646ce683d2867572b2200be877f7"},{"fixed":"117871cdb8927542abd7b65ce5995bf0265a8c05"},{"fixed":"33fb59da49c4c3f5c2ec9f9d4447a56857a02c02"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98252.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.16.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98252.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}