{"id":"CVE-2026-80715","summary":"igc: remove napi_synchronize() in igc_down()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nigc: remove napi_synchronize() in igc_down()\n\nWhen an AF_XDP zero-copy application is killed abruptly, the XSK pool is\ntorn down but NAPI keeps polling. igc_clean_rx_irq_zc() then returns the\nfull budget on every poll, so napi_complete_done() never clears\nNAPI_STATE_SCHED.\n\nigc_down() calls napi_synchronize() before napi_disable(), so it spins\nforever waiting for that bit and the interface never goes down. Drop the\nnapi_synchronize() and let napi_disable() do the job -- it sets\nNAPI_STATE_DISABLE, which forces the stuck poll to complete. Reorder it\nahead of igc_set_queue_napi() so the NAPI mapping is cleared only after\npolling has stopped, matching the recent igb fix b1e067240379.","modified":"2026-08-29T03:46:29.465055999Z","published":"2026-08-28T06:53:13.683Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80715.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b5aee6fcbf6b58112d40d19c8d31fa3f78ee668"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5ffab5b9589c50e4cfc0cf36ffd76c89422d4019"},{"type":"WEB","url":"https://git.kernel.org/stable/c/605585a8d89aaeb0122e9016fdaa92376897a705"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a2b637aef4e515c2179774888441d00e8a5ae95"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a0f16c337691813f8d8f014c01fff5a368e08898"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad6e0df267dc96edb7de1fa0a2fb2a70645bff86"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f929a6fe5b7ae1e72d2c6d18cd69ab90dcf689d2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80715.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80715"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fc9df2a0b520d7d439ecf464794d53e91be74b93"},{"fixed":"ad6e0df267dc96edb7de1fa0a2fb2a70645bff86"},{"fixed":"605585a8d89aaeb0122e9016fdaa92376897a705"},{"fixed":"a0f16c337691813f8d8f014c01fff5a368e08898"},{"fixed":"f929a6fe5b7ae1e72d2c6d18cd69ab90dcf689d2"},{"fixed":"3b5aee6fcbf6b58112d40d19c8d31fa3f78ee668"},{"fixed":"9a2b637aef4e515c2179774888441d00e8a5ae95"},{"fixed":"5ffab5b9589c50e4cfc0cf36ffd76c89422d4019"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80715.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.0"},{"fixed":"5.15.217"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.184"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.153"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80715.json"}}],"schema_version":"1.9.0"}