net/sched: ets: use old 'nbands' while purging unused classes

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PT-2025-35957

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.12.0-116.el10.x86 64 Description A flaw was discovered in the Linux kernel's sch ets module related to the handling of queue bands during the purging of unused classes. Specifically, the code used an outdated...