CVE-2026-98574Medium· 4.1▾ SunlitA flaw was found in the Linux kernel's Broadcom GENET network driver. Improper synchronization between disabling transmission queues and stopping completion polling during interface shutdown or suspend operations can prematurely re-enable …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 22.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
0.2%
— → 4.1
none → medium
A flaw was found in the Linux kernel's Broadcom GENET network driver. Improper synchronization between disabling transmission queues and stopping completion polling during interface shutdown or suspend operations can prematurely re-enable a queue. This race condition allows packet transmission to access freed memory buffers, causing a use-after-free condition. A local user could exploit this issue during device reconfiguration to trigger memory corruption, leading to a Denial of Service (DoS) via a system crash.
kernel: net: bcmgenet: stop Tx NAPI before disabling the queues — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.
Not affected:
Refer to the advisory for fix availability.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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