CVE-2026-80715
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.
Affected versions
Linux kernel versions
5.14
and later are affected. Fixed in
5.15.217,
6.1.184,
6.6.153,
6.12.105,
6.18.44,
7.1.8,
7.2
and their respective stable series.
References
7 totalFrequently asked questions
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What is CVE-2026-80715?
CVE-2026-80715 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.14 onward and has been patched in 5.15.217, 6.1.184, 6.6.153 and others. CVE-2026-80715 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-80715?
Yes. CVE-2026-80715 has been patched. Fixed versions include 5.15.217, 6.1.184, 6.6.153 and others. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80715 actively exploited?
No. CVE-2026-80715 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.