CVE-2026-80715None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: igc: remove napi_synchronize() in igc_down() When an AF_XDP zero-copy application is killed abruptly, the XSK pool is torn down but NAPI keeps polling. igc_clean_rx_ir…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
igc: remove napi_synchronize() in igc_down()
When an AF_XDP zero-copy application is killed abruptly, the XSK pool is torn down but NAPI keeps polling. igc_clean_rx_irq_zc() then returns the full budget on every poll, so napi_complete_done() never clears NAPI_STATE_SCHED.
igc_down() calls napi_synchronize() before napi_disable(), so it spins forever waiting for that bit and the interface never goes down. Drop the napi_synchronize() and let napi_disable() do the job -- it sets NAPI_STATE_DISABLE, which forces the stuck poll to complete. Reorder it ahead of igc_set_queue_napi() so the NAPI mapping is cleared only after polling has stopped, matching the recent igb fix b1e067240379.
Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < ad6e0df267dc96edb7de1fa0a2fb2a70645bff86Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < 605585a8d89aaeb0122e9016fdaa92376897a705Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < a0f16c337691813f8d8f014c01fff5a368e08898Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < f929a6fe5b7ae1e72d2c6d18cd69ab90dcf689d2Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < 3b5aee6fcbf6b58112d40d19c8d31fa3f78ee668Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < 9a2b637aef4e515c2179774888441d00e8a5ae95Linux >= fc9df2a0b520d7d439ecf464794d53e91be74b93 < 5ffab5b9589c50e4cfc0cf36ffd76c89422d4019Linux 5.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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