{"id":"CVE-2026-74309","summary":"vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler\n\nLook up the IRQ index in oct_hw-\u003eirqs instead of assuming\nirq - irqs[0]. This supports non-contiguous IRQ numbers and\navoids incorrect ring indexing when irqs[0] is not the base.","modified":"2026-08-16T03:48:27.680997262Z","published":"2026-08-15T05:58:09.366Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74309.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0d21a1d6375a05274291e32c1ab7cd57dbb69513"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ef0cfa77a3d526591be069850d186c255e3f0cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6c7eae5de798442987619434171ac886035d57c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74309.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74309"},{"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":"26f8ce06af6475b33b0bc60261e9f5027f9af58f"},{"fixed":"3ef0cfa77a3d526591be069850d186c255e3f0cc"},{"fixed":"c6c7eae5de798442987619434171ac886035d57c"},{"fixed":"0d21a1d6375a05274291e32c1ab7cd57dbb69513"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74309.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.14.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74309.json"}}],"schema_version":"1.9.0"}